32 results for Data Scientist Ml Ai jobs

Data Scientist - ML/AI

Tokyo,
remote
Contract
6.0M - 11.0M JPY / Yearly
Company ProfileA global technology-driven organization focused on sustainability, smart infrastructure, and large-scale energy optimization is expanding its data science capabilities in Japan. The company works with complex, real-world energy and infrastructure data to support long-term innovation, research, and operational efficiency. The Role<ul><li>The Energy Data Scientist will work with large-scale time-series and IoT-based energy data, analyzing consumption patterns and developing analytical models to support optimization initiatives.</li><li>This role combines hands-on data analysis with research-oriented reporting, including the preparation of technical reports and studies used for internal decision-making and external publications.</li><li>You will collaborate closely with engineers, researchers, and business stakeholders to ensure analytical outputs align with real-world system constraints and operational requirements.</li></ul> Your Skills <ul><li>Experience analyzing large-scale time-series data using Python and SQL</li><li>Strong background in data analysis, statistical modeling, or applied data science</li><li>Ability to translate complex analytical findings into clear written reports or studies</li><li>Experience with data visualization tools such as Tableau or Power BI</li><li>Exposure to automation, data pipelines, or analytical workflow optimization</li><li>Business-level English, conversational Japanese is a plus.</li></ul> Key Highlights of the Role <ul><li>Opportunity to work on real-world energy and infrastructure data rather than purely online datasets</li><li>Strong research and thought-leadership focus, including report and paper-style deliverables</li><li>Suitable for candidates from energy, manufacturing, finance, or logistics data backgrounds</li><li>Hybrid work environment based in Japan with exposure to cross-functional and international teams</li></ul> Location Tokyo Salary6 - 11 million yen Reference Number: 06940-0013359059 By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<img src="https://counter.adcourier.com/ZXJpa2EueWFtYWRhLjkyNzU1LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2026-01-06T05:45:43Z

AI/ML Engineer

Tokyo,
remote
Contract
8.0M - 8.0M JPY / Yearly
Position Overview<ul><li>The position focuses on designing, developing, and deploying AI and machine learning solutions to optimize team operations.</li></ul> Key Responsibilities<ul data-start="317" data-end="760"><li data-start="317" data-end="388">Build and implement AI/ML systems to improve operational efficiency</li><li data-start="389" data-end="469">Develop automation solutions using internal tools and widely used LLM models</li><li data-start="470" data-end="565">Apply Model Control Protocol (MCP) principles to ensure robust and scalable implementations</li><li data-start="566" data-end="655">Stay up-to-date with the latest AI tools, frameworks, and trends to enhance workflows</li><li data-start="656" data-end="760">Collaborate with cross-functional teams to integrate AI-driven optimizations into existing processes</li></ul> Annual Sakary: 7,999,004 (JPY)Location: TokyoJO: 06940-0013354332 <img src="https://counter.adcourier.com/VG9tb2UuTW91bnRlZXIuNTk5MDQuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2026-01-06T00:53:53Z

AI Software Engineer

Tokyo,
remote
Contract
10.0M - 10.0M JPY / Yearly
Company ProfileJoin a dynamic engineering team focused on developing cutting-edge AI solutions. This role involves designing and implementing machine learning models, building scalable software systems, and contributing to the advancement of intelligent technologies across various applications.The Role<ul><li>Design, develop, and evaluate AI models (e.g., NLP, computer vision, predictive analytics)</li><li>Implement and optimize software using Python, C++, or other relevant languages</li><li>Build and maintain AI systems on cloud platforms (e.g., AWS, GCP)</li><li>Collaborate with data scientists, product managers, and engineers to define requirements and deliver solutions</li><li>Document technical specifications and participate in code reviews</li></ul>Your Skills <ul><li>Bachelor's degree or higher in Computer Science, Engineering, or a related field</li><li>Hands-on experience with machine learning and deep learning frameworks (e.g., TensorFlow, PyTorch)</li><li>Proficiency in Python and familiarity with software development best practices</li><li>Strong analytical and problem-solving skills</li><li>Ability to communicate technical concepts effectively in English</li></ul>Location Tokyo, JapanSalaryHourly Rate : 4,940 JPY Reference Number: 06940-0013312157 By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjU5MTc2LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-11-07T03:27:58Z

AI Engineer

Tokyo,
remote
Permanent
7.0M - 13.0M JPY / Yearly
Company ProfileAI technology start-up which provides end to end AI solutions to clients across Japan. The RoleOur company is experiencing rapid growth through product development leveraging Generative AI. As AI technologies and their social implementation accelerate, the importance of scalable and robust backend development for our innovative AI product suite-including our chat platform, speech solution, and agent system-continues to increase. Your Skills <ul><li>5+ years of application development experience using Python</li><li>3+ years of experience developing complex SaaS products or high-traffic B2B products</li><li>3+ years of experience with cloud services (AWS, GCP, Azure) and container technologies (Docker, Kubernetes)</li><li>Experience working at startups or growth-stage companies, or equivalent environments</li><li>Knowledge of and passion for AI-related technologies</li><li>Experience building systems utilizing natural language processing or machine learning</li><li>Experience developing machine learning models with Python, TensorFlow, or PyTorch</li><li>Experience with chatbot, speech recognition systems, or AI agent development</li><li>Experience launching new businesses/products from the 0→1 phase</li></ul> Location Tokyo Salary7 - 13 million yen Reference Number: 06940-0013273193By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<hr />「応募」をクリックすることにより、お客様はロバート・ハーフ（以下、当社）のプライバシー通知（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）に同意したものとみなされます。 応募書類には、人種、信条、社会的身分、病歴、犯罪の経歴などの要配慮個人情報や、配偶者、扶養家族など採用選考に無関係な情報を含めないようご注意ください。記載する情報はすべて正確かつ真実であること、また、ハイパーリンクを含める場合には、安全性と信頼性が確保されていることをご確認ください。<img src="https://counter.adcourier.com/TmFuY3kuWXVhbi41ODkxNC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-11-27T00:37:32Z

Enterprise Architect

Tokyo,
remote
Permanent
20.0M - 20.0M JPY / Yearly
Job Description<ul><li>Proven experience delivering modernization initiatives for legacy systems at scale.</li><li>Comprehensive knowledge of cloud platforms and integrating artificial intelligence and machine learning solutions.</li><li>Skilled in DevOps methodologies and tools including container orchestration technologies.</li><li>Track record of leading enterprise architecture transformation projects for various sectors.</li><li>Experienced in presenting to executive-level stakeholders. Demonstrated ability to collaborate across teams and manage stakeholder relationships effectively.</li><li>Native-level proficiency in Japanese and professional fluency in English.</li></ul>Reference No. ：06940-0013325954 By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<hr />「応募」をクリックすることにより、お客様はロバート・ハーフ（以下、当社）のプライバシー通知（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）に同意したものとみなされます。 応募書類には、人種、信条、社会的身分、病歴、犯罪の経歴などの要配慮個人情報や、配偶者、扶養家族など採用選考に無関係な情報を含めないようご注意ください。記載する情報はすべて正確かつ真実であること、また、ハイパーリンクを含める場合には、安全性と信頼性が確保されていることをご確認ください。<img src="https://counter.adcourier.com/b3NrYXIudGFrZW5ha2EuNjY3NTEuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-11-17T08:31:01Z

Senior Software Engineer

Fukuoka,
remote
Permanent
9.0M - 15.0M JPY / Yearly
Company ProfileThis technology company drives digital transformation in the financial sector through the strategic use of AI and data. Utilizing AI, data analytics, and modern architecture, the firm develops proprietary products and solutions for financial institutions. With offices in both Tokyo and Fukuoka, the company is leading industry-wide transformation and the creation of new value.The RoleAs a Senior Application Engineer, you will lead the development team for finance-focused proprietary products utilizing AI and data technologies. Your responsibilities span everything from feature design to implementation and operations, driving scalability and performance improvements of the systems. You will also proactively build and improve agile development frameworks, collaborating with remote teams across Tokyo and Fukuoka.Your Skills <ul><li>3+ years of software development experience (Python / Go / Java / Kotlin / C++ etc.)</li><li>1+ year of experience as a tech lead or in an equivalent leadership role</li><li>Experience with Git and building CI/CD pipelines, as well as agile development experience</li><li>Japanese language: JLPT N1 or above; English language: ability for technical communication</li><li>Bachelor's degree or above</li></ul>Preferred Qualifications<ul><li>Experience in AI/LLM development or building machine learning models</li><li>Experience in the financial industry</li><li>Hands-on experience with team building in startups or remote environments</li></ul>Key Highlights of the Role <ul><li>Opportunity to lead development of products implemented at major financial institutions</li><li>High level of discretion in technology selection and architecture design</li><li>Fast decision-making in a flat organizational culture</li><li>Hybrid work style (remote work available); 122 annual holidays</li><li>Access to company ChatGPT accounts, learning support including study groups and conference participation</li><li>Annual salary expectations: 9M-15M JPY; family, health, and personal development support systems available</li></ul>Location FukuokaSalary 9-15 million JPYReference Number: 06940-0013333194By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/U2hpbWFtdXJhLlNoaW5vYnUuNjk1ODYuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-11-13T08:20:42Z

Data Engineer

Tokyo,
remote
Contract
7.9M - 7.9M JPY / Yearly
Location: Tokyo JO: 06940-0013315515 Annual Salary: JPY 7,904,000<h4 data-start="266" data-end="297">Department Overview:</h4>The Data Lakehouse Section is responsible for providing scalable Lakehouse platform solutions to support the business and operations of the organization. Our mission is to accelerate the use of data by providing flexible platforms that can host a wide range of data solutions.<h4 data-start="576" data-end="605">Position Overview:</h4>This position is focused on developing and managing data warehouse solutions using a Lakehouse platform on Azure. The role involves understanding business requirements, implementing data solutions, and supporting daily operations for the platform.<h4 data-start="855" data-end="887">Key Responsibilities:</h4><ul data-start="888" data-end="1306"><li data-start="888" data-end="1000">Develop and manage data warehouse solutions for business operations using Databricks and other relevant tools.</li><li data-start="1001" data-end="1088">Implement business requirements into the platform and ensure smooth daily operations.</li><li data-start="1089" data-end="1152">Design, implement, and optimize data pipelines and workflows.</li><li data-start="1153" data-end="1236">Collaborate with internal teams to troubleshoot and enhance platform performance.</li><li data-start="1237" data-end="1306">Support continuous improvement initiatives for data infrastructure.</li></ul><h4 data-start="1308" data-end="1335">Required Skills:</h4><ul data-start="1336" data-end="1770"><li data-start="1336" data-end="1397">3+ years of development experience, preferably with Python.</li><li data-start="1398" data-end="1471">Experience working with public cloud platforms (e.g., GCP, AWS, Azure).</li><li data-start="1472" data-end="1545">Proficiency in Databricks or similar platforms for big data processing.</li><li data-start="1546" data-end="1638">Ability to write clean, production-level code that is maintainable and easy to understand.</li><li data-start="1639" data-end="1770">Experience with common machine learning frameworks (e.g., TensorFlow, PyTorch) and libraries (e.g., scikit-learn, NumPy, pandas).</li></ul><h4 data-start="1772" data-end="1800">Preferred Skills:</h4><ul data-start="1801" data-end="2700"><li data-start="1801" data-end="1913">Experience with the deployment and training of machine learning models and MLOps tools (e.g., MLFlow, Seldon).</li><li data-start="1914" data-end="1979">Experience with RESTful APIs and batch processing applications.</li><li data-start="1980" data-end="2120">Familiarity with the full software development lifecycle, including agile development practices and using task management tools like JIRA.</li><li data-start="2121" data-end="2206">Experience with microservice development and operation using Docker and Kubernetes.</li><li data-start="2207" data-end="2282">Knowledge of big data technologies such as Spark, Kafka, Delta Lake, etc.</li><li data-start="2283" data-end="2352">Experience with data modeling and observability of data and models.</li><li data-start="2353" data-end="2418">Experience with production engineering practices such as CI/CD.</li><li data-start="2419" data-end="2464">Performance profiling and tuning expertise.</li><li data-start="2465" data-end="2550">Experience in developing distributed, scalable, and high-availability applications.</li><li data-start="2551" data-end="2630">Understanding of GPU-based applications, machine learning, and deep learning.</li><li data-start="2631" data-end="2700">Experience with orchestration tools such as Airflow, Kubeflow, etc.</li></ul><h4 data-start="2702" data-end="2732">Personal Qualities:</h4><ul data-start="2733" data-end="2968"><li data-start="2733" data-end="2789">Strong problem-solving skills and analytical thinking.</li><li data-start="2790" data-end="2849">Ability to collaborate effectively in a team environment.</li><li data-start="2850" data-end="2898">Eagerness to learn and apply new technologies.</li><li data-start="2899" data-end="2968">Goal-oriented and results-driven with a focus on achieving success.</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjAwNjIxLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-10-31T03:07:20Z

Principal Software Engineer

Tokyo,
remote
Permanent
10.0M - 19.0M JPY / Yearly
Company ProfileEnterprise SaaS provider specializing in contract management solutions that transform how businesses leverage contract data. Post-PMF company experiencing rapid growth, backed by years of proprietary OCR and NLP technology development. The platform serves legal, sales, engineering, and executive teams across major Japanese enterprises, combining battle-tested data digitization expertise with cutting-edge generative AI capabilities. The Role<ul><li>Lead critical technical initiatives from architecture design through implementation and team guidance</li><li>Own technology decisions and code reviews across new feature development, improvements, and operations</li><li>Drive performance optimization strategies for contract data processing and full-text search at scale</li><li>Design and implement microservices architecture to support global expansion and feature velocity</li><li>Build LLM inference infrastructure that combines massive document processing with generative AI</li><li>Shape technical stack evolution and modernization across the entire platform</li><li>Provide hands-on technical mentorship to engineering teams while establishing systems that improve code quality</li><li>Identify and solve cross-product technical challenges that impact organizational efficiency</li></ul> Tech Stack: Kotlin, Ktor, Spring Boot, TypeScript, React, Vite, PostgreSQL, Elasticsearch, Google Cloud (Cloud Run, Cloud Functions), GitHub Actions, Splunk Your Skills Required:<ul><li>7+ years building web applications with proven architectural ownership</li><li>Deep backend expertise using statically-typed languages (Java, Kotlin, Go, TypeScript)</li><li>SPA frontend development experience with React, Vue.js, or similar frameworks</li><li>Public cloud architecture - designing and operating systems on GCP, AWS, or Azure</li><li>DDD modeling proficiency and understanding of cloud design patterns</li><li>RDB design and performance tuning skills for high-volume data processing</li><li>Technical leadership experience guiding development teams</li><li>Business-level proficiency in both Japanese and English</li><li>Valid work authorization for Japan or current Japan residency</li></ul>Preferred:<ul><li>Large-scale, high-traffic services experience</li><li>SRE/DevOps background with microservices architecture design</li><li>SaaS product launch experience from zero to production</li><li>Security design and vulnerability remediation knowledge</li></ul> Key Highlights of the Role <ul><li>Post-PMF hypergrowth phase - architect systems that scale from successful product to market-defining platform with massive technical autonomy over technology selection and strategic direction</li><li>Unique technical challenge - combine proprietary OCR/NLP technology developed over years with cutting-edge generative AI to achieve precision levels generic solutions cannot match</li><li>Scale-specific challenges - microservices transformation, large-scale LLM infrastructure, and DDD modeling of complex domains at enterprise scale</li><li>Hands-on + leadership balance - design your own approach between architectural leadership and technical implementation</li></ul> Location Tokyo Salary10 - 19 million yen Reference Number: 06940-0013342172By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<hr />「応募」をクリックすることにより、お客様はロバート・ハーフ（以下、当社）のプライバシー通知（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）に同意したものとみなされます。 応募書類には、人種、信条、社会的身分、病歴、犯罪の経歴などの要配慮個人情報や、配偶者、扶養家族など採用選考に無関係な情報を含めないようご注意ください。記載する情報はすべて正確かつ真実であること、また、ハイパーリンクを含める場合には、安全性と信頼性が確保されていることをご確認ください。<img src="https://counter.adcourier.com/c3VlLnRpbmcuOTQxNzkuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-12-02T07:27:57Z

IT Consultant

Tokyo,
remote
Contract
9.0M - 9.1M JPY / Yearly
Security Governance<ul><li>Security Education: Support security awareness measures targeting risks associated with the use of generative AI, such as information leaks, unauthorized data entry, and model abuse. We create educational content, plan and implement employee training, assess understanding, and propose improvements.</li><li>NIS2 Directive Compliance: Evaluate governance, risk management, incident reporting systems, supply chain security, and more. Implement management measures, operational processes, and management responsibility systems based on NIS2 requirements.</li></ul>Engineering<ul><li>Device authentication: Utilizes device certificates, MDM integration, and hardware-based identification information (TPM, etc.) to help prevent access from unauthorized or unregistered devices.</li><li>Strengthening remote access security: Based on zero trust, supports the implementation of MFA, device authentication, network isolation, and access control policy optimization.</li><li>Strengthening security of AD domain and PC local administrator privileges: Minimizing privileged accounts, deleting unnecessary accounts, protecting authentication information, and centralizing local administrator password management using LAPS, etc. Support for reducing the risk of privilege abuse and authentication information leakage.</li></ul>Application<ul><li>Strengthening authentication methods: Review authentication methods and help reduce the risk of unauthorized logins and credential leaks.</li><li>Support for strengthening cloud security: Support for the implementation and operation of CSPM. Detecting configuration errors, visualizing compliance violations, vulnerability management, continuous monitoring, etc.</li><li>Support for standardizing password and secret management and implementing remote support solutions: Protecting privileged accounts and application secrets, implementing vault management, and supporting the establishment of regular rotation operations, etc. Support for the implementation of remote support solutions.</li></ul>SecOps<ul><li>Sentinel POC and Microsoft security infrastructure development: Strengthening access with Entra ID, integrating protection and detection with Defender, and supporting the implementation and operation of SIEM/SOAR with Sentinel.</li><li>AI-based security process automation: Leveraging AI technology to support the automation of operational processes such as security monitoring, incident response, threat analysis, and TPRM.</li><li>Evilginx implementation and operation support: Building, configuring, and operating the Evilginx environment, providing the environment necessary for verifying phishing attack methods, and providing technical support.</li></ul> Reference No.: 06940-0013322943By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/bHVrZS5mdXJuaXZhbC42ODQzMC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-11-14T04:05:48Z

Back End Engineer

Tokyo,
remote
Permanent
8.0M - 12.0M JPY / Yearly
Build Japan's Payment Future with ML & Functional Programming Company Profile A rapidly growing fintech company transforming digital commerce in Japan is seeking a Product Engineer. The platform processes millions of transactions using proprietary machine learning models to enable seamless online shopping experiences. Backed by major global payment companies and leading financial institutions, the organization combines innovative technology with enterprise stability. The engineering team represents 40+ nationalities working in English, maintaining a casual, collaborative culture at their central Tokyo office. The Role<ul><li>Architect and scale payment platform components while maintaining security, resilience, and maintainability standards for high-volume transaction processing</li><li>Collaborate directly with product teams to translate business objectives into technical solutions, communicating design tradeoffs clearly across engineering and product stakeholders</li><li>Work cross-functionally in feature teams to deliver services that directly impact user acquisition and conversion rates</li><li>Participate in systematic code reviews and maintain testing practices that ensure production-grade quality for mission-critical payment infrastructure</li><li>Stay current with industry patterns and suggest performance improvements based on data-driven insights from real-world payment flows</li><li>Navigate ambiguity with sound judgment while defining deliverables and maintaining urgency for business-critical releases</li></ul> Your Skills Essential Requirements:<ul><li>Proficiency in Scala (or strong in functional programming like Rust, Haskell, C++) with curiosity about functional programming paradigms</li><li>Strong grasp of software architecture, design patterns, and how they align with distributed service structures</li><li>Experience writing clean, maintainable code with systematic debugging approaches and automated testing mindset</li><li>Understanding of security implications across distributed systems and payment infrastructure</li><li>Comfortable reading unfamiliar codebases and making intelligent inferences about broader system context</li><li>Genuine interest in how engineering strategy connects to product development and business growth</li></ul>Bonus Experience (Not Required but Valued):<ul><li>Hands-on experience with Scala, Cassandra, Kafka, PostgreSQL, AWS (Fargate/Terraform), or functional programming libraries (cats, cats-effect)</li><li>Background in microservices architecture, event sourcing, CQRS patterns, or REST API design</li><li>Previous work on payment platforms, distributed systems, or fintech products</li><li>Understanding of cross-team dependencies and ability to envision technical roadmaps</li></ul> Key Highlights of the Role<ul><li>Solve genuine technical challenges at scale. Building payment infrastructure that underwrites real-time transactions using proprietary ML models for major e-commerce platforms</li><li>Work with a modern functional programming stack (Scala, cats-effect, tagless final) alongside distributed systems technologies like Kafka, Cassandra, and event sourcing architectures</li><li>Join a truly international engineering team where English is the working language and colleagues represent 40+ nationalities - rare opportunity for Tokyo tech roles</li><li>Shape technology evolution in a well-funded organization transitioning from startup agility to enterprise scale</li><li>Enjoy genuine work-life balance with full flextime (no core hours), up to 3 days remote per week and generous paid time off (20+ days from first year)</li><li>Competitive compensation package with comprehensive retirement programs and premium central Tokyo office access</li></ul><img src="https://counter.adcourier.com/S2hhbmcuTGUuMjQzMzYuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2026-01-05T08:31:49Z

Backend Engineer

Tokyo,
remote
Permanent
9.0M - 12.0M JPY / Yearly
Company ProfileFast-growing data intelligence startup developing Japan's leading next-generation data catalog platform. In just 5 years, the company has been adopted by numerous major enterprises, primarily TSE Prime Market listed companies, and has become the Gartner-recognized #1 domestic vendor in the rapidly evolving metadata management field. The Role<ul><li>Contribute to both frontend and backend development of the flagship Data Intelligence Cloud product.</li><li>Maintain and continuously improve product localization quality for Japanese enterprise customers.</li><li>Work across the technology stack (React, Remix, Tailwind CSS, Golang, AWS) to develop and improve features according to requirements.</li><li>Produce clear technical documentation for other stakeholders (engineers, PMs, etc.).</li><li>Actively contribute to discussions within the team and propose ideas to improve architecture, design, and development processes.</li></ul> Your Skills <ul><li>5+ years of backend development experience (Golang, C++, Python, or Java highly preferred).</li><li>Fluent in Japanese proficiency (reading, writing, speaking) and business level in English.</li><li>Experience in API design and development.</li><li>Practical experience in data management, data engineering, or data analytics (e.g., BigQuery, Snowflake, ETL pipeline development) is beneficial.</li><li>Experience working in B2B SaaS businesses or startup environments is ideal.</li></ul> Key Highlights of the Role <ul><li>Join Japan's fastest-growing and Gartner-recognized market leader in data intelligence.</li><li>Serve as the critical bridge between cutting-edge technology and Japanese enterprise user experience.</li><li>Work with a modern tech stack (React, Golang, AWS) in a startup environment with enterprise clients.</li><li>Directly impact how Japan's largest companies discover, govern, and manage their data assets.</li><li>Be part of a mission-driven team shaping the future of enterprise data management in Japan.</li></ul> Location Tokyo Salary9 - 12 million yen Reference Number: 06940-0013346231By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<hr />「応募」をクリックすることにより、お客様はロバート・ハーフ（以下、当社）のプライバシー通知（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）に同意したものとみなされます。 応募書類には、人種、信条、社会的身分、病歴、犯罪の経歴などの要配慮個人情報や、配偶者、扶養家族など採用選考に無関係な情報を含めないようご注意ください。記載する情報はすべて正確かつ真実であること、また、ハイパーリンクを含める場合には、安全性と信頼性が確保されていることをご確認ください。<img src="https://counter.adcourier.com/V2F0dW55dS5TaXJpcGFpcm9qLjAwNjAxLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-12-04T06:41:06Z

Data Engineer

Tokyo,
remote
Contract
8.1M - 8.1M JPY / Yearly
JO: 06940-0013310510 Location: Tokyo Annual Salary: Around ¥8,112,000Department Overview: The department manages and provides master data across multiple business units, delivering value through data-driven development. It also develops solutions for generating and assigning master data, supporting a variety of use cases.Position Outline: This position is an engineering role within the Product Master Group, responsible for managing standardized product data to enable end-users to search and interact with structured information more efficiently.Responsibilities:<ul data-start="699" data-end="911"><li data-start="699" data-end="822">Full-stack responsibility for data infrastructure and products, including design, development, testing, and operations.</li><li data-start="823" data-end="911">For experienced candidates: contribute to requirements definition and system design.</li></ul>Required Skills:<ul data-start="936" data-end="1714"><li data-start="936" data-end="1036">4+ years of professional experience in Data Engineering or Software Engineering focusing on data</li><li data-start="1037" data-end="1107">Strong proficiency in Java and Spring Boot (version 1.8 or higher)</li><li data-start="1108" data-end="1187">Experience with unit testing (e.g., JUnit) and performance-conscious coding</li><li data-start="1188" data-end="1248">Experience creating batch applications using Spring Boot</li><li data-start="1249" data-end="1337">Experience with relational databases (e.g., MySQL) and NoSQL databases (e.g., HBase)</li><li data-start="1338" data-end="1427">Solid understanding of database schema design, SQL tuning, and performance evaluation</li><li data-start="1428" data-end="1566">Experience with cloud platforms (AWS, GCP, Azure) and related services (e.g., Dataflow, Dataproc, Cloud Functions, Bigtable, BigQuery)</li><li data-start="1567" data-end="1630">Experience with Linux operating systems and shell scripting</li><li data-start="1631" data-end="1714">Experience working in a team environment and collaborating on design and coding</li></ul>Preferred Skills:<ul data-start="1740" data-end="1993"><li data-start="1740" data-end="1824">Experience with large-scale data processing systems (e.g., Apache Spark, Hadoop)</li><li data-start="1825" data-end="1875">Experience with API development (RESTful APIs)</li><li data-start="1876" data-end="1952">Experience with containerization technologies (e.g., Docker, Kubernetes)</li><li data-start="1953" data-end="1993">Experience with TypeScript or Python</li></ul>Language Requirements:<ul data-start="2024" data-end="2099"><li data-start="2024" data-end="2052">Japanese: Conversational</li><li data-start="2053" data-end="2099">English: Business level (e.g., TOEIC 800+)</li></ul>Contract Terms:<ul data-start="2123" data-end="2212"><li data-start="2123" data-end="2212">Initial contract: 2 months, with 3-month extensions expected for long-term employment</li></ul>Working Hours & Holidays:<ul data-start="2246" data-end="2328"><li data-start="2246" data-end="2291">Weekdays: 9:00-17:30 (Break: 12:00-13:00)</li><li data-start="2292" data-end="2328">Weekends and public holidays off</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjU3MzU2LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-10-30T08:18:18Z

Back End Engineer

Tokyo,
remote
Permanent
9.0M - 15.0M JPY / Yearly
Company ProfileGlobal cybersecurity leader specializing in Endpoint Detection & Response (EDR) solutions is expanding its Tokyo engineering team. The company protects enterprise customers worldwide by analyzing massive volumes of threat data from millions of endpoints in real-time. The Role<ul><li>Join the core engineering team building a completely next-generation EDR platform that has secured board-level funding and is moving into production phase</li><li>Design and implement backend services in Rust that process data from 6 million sensors streaming 1,000 messages per minute with sub-second response times</li><li>Build data ingestion pipelines and microservices that maintain reliability under extreme throughput while optimizing cloud infrastructure costs</li><li>Architect scalable distributed systems using containerization, cloud-native technologies and streaming data platforms</li><li>Develop APIs and integrations connecting security tools across enterprise IT environments</li><li>Collaborate with an international engineering team (English-speaking) to implement AI-driven threat detection capabilities</li><li>Work on genuinely complex technical challenges where system reliability isn't optional. It's mission-critical!</li></ul> Your Skills Essential Requirements:<ul><li>Production experience in Rust required (or exceptionally strong C++/Go/Java with immediate willingness to transition to Rust)</li><li>Proven track record building high-scale distributed systems handling millions of users or data points, not just thousands</li><li>Deep understanding of system reliability trade-offs: performance versus cost, speed versus fault tolerance</li><li>Hands-on experience with cloud platforms (AWS/GCP/Azure), containerization, and microservice architecture patterns</li><li>Solid foundation working with both SQL and NoSQL databases; streaming data systems experience is a bonus</li><li>Currently based in Japan or hold valid work authorization to work in Tokyo</li><li>English language proficiency for international team collaboration</li></ul>Welcome Experience:<ul><li>Background in cybersecurity, SIEM systems, or observability platforms</li><li>Experience with Kafka, Flink, Redpanda, or other data streaming technologies</li><li>Familiarity with ELK stack, time-series databases, or real-time analytics frameworks</li><li>Previous work optimizing cloud infrastructure costs at scale</li></ul> Key Highlights of the Role <ul><li>Join at the perfect timing as team has grown to 15+ engineers and is establishing technical leadership layers, creating fast-track paths to Team Lead positions</li><li>Work on greenfield architecture where your technical decisions will shape the product for years to come</li><li>Solve genuinely hard problems: maintain performance while processing petabyte-scale threat data across distributed global infrastructure</li><li>Join a truly international team where English is the primary language and remote collaboration is built into the workflow</li><li>Modern tech stack from day one-no legacy monoliths, just cloud-native microservices and streaming pipelines</li><li>Competitive compensation package reflecting the urgency and strategic importance of these hires (budget available up to ¥15M for exceptional candidates)</li><li>Located in Otemachi, Tokyo with convenient access to multiple train and subway lines</li></ul> Apply ConfidentiallySend your resume with "Rust Engineer - Cybereason" in the subject line. All applications and conversations will be handled with complete discretion. Even if you don't meet every requirement but have strong systems-thinking and Rust capabilities, we encourage you to apply. Location Tokyo Salary9 - 15 million yen Reference Number: 06940-0013358136 By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<img src="https://counter.adcourier.com/S2hhbmcuTGUuNjk4MzQuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2026-01-06T00:28:59Z

Software Engineer

Tokyo,
remote
Contract
9.4M - 9.4M JPY / Yearly
Location: Tokyo JO: 06940-0013313061 Annual Salary: JPY 9,360,000<h3 data-start="177" data-end="205">Position Overview:</h3>Handle technical support requests, triage problems, basic troubleshooting, and update the support knowledge base. Manage customer requirements, monitor progress, and communicate with internal teams.<h3 data-start="406" data-end="437">Key Responsibilities:</h3><ul data-start="438" data-end="660"><li data-start="438" data-end="492">Support request handling and basic troubleshooting</li><li data-start="493" data-end="519">Knowledge base updates</li><li data-start="520" data-end="574">Customer requirement tracking and status reporting</li><li data-start="575" data-end="603">System integration tasks</li><li data-start="604" data-end="631">Access right management</li><li data-start="632" data-end="660">Internal team coordination</li></ul><h3 data-start="662" data-end="688">Required Skills:</h3><ul data-start="689" data-end="825"><li data-start="689" data-end="714">Experience in C++</li><li data-start="715" data-end="748">ECU knowledge (preferred)</li><li data-start="749" data-end="782">System integration experience</li><li data-start="783" data-end="825">Basic hardware knowledge (preferred)</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/VG9tb2UuTW91bnRlZXIuNjk1MjguMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-10-31T03:34:42Z

Tech Lead

Tokyo,
remote
Permanent
15.0M - 15.0M JPY / Yearly
Key Skills & Requirements<ul data-start="112" data-end="623"><li data-start="112" data-end="255">Programming: Strong experience in languages such as C++ and C#, with practical knowledge of popular game engines like Unity and Unreal.</li><li data-start="256" data-end="366">Analytical Thinking: Ability to approach technical problems methodically and find effective solutions.</li><li data-start="367" data-end="482">Collaboration: Skilled at communicating and working closely with team members across different disciplines.</li><li data-start="483" data-end="623">Game Development Expertise: Hands-on experience covering all stages of game creation, from initial concept through to final release.</li></ul> JO: 06940-0013354999Location: TokyoAnnual Salary: JPY 15,000,000<img src="https://counter.adcourier.com/aXNhYWMuY2hlbmcuMDk1MjAuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2026-01-15T08:27:51Z

DevOps Engineer

Tokyo,
remote
Contract
6.9M - 6.9M JPY / Yearly
<h2 data-start="159" data-end="173">Job Summary</h2>This role is responsible for the operation and maintenance of systems in the Japan office. The position covers server management, service operations, automation, performance tuning, and ensuring stable system operation.<hr data-start="398" data-end="401" /><h2 data-start="403" data-end="434">Required Skills / Experience</h2><ul data-start="436" data-end="779"><li data-start="436" data-end="485">3+ years of experience managing Linux servers</li><li data-start="486" data-end="533">Experience operating services built on Java</li><li data-start="534" data-end="586">Experience writing and maintaining shell scripts</li><li data-start="587" data-end="632">Experience with CI/CD processes and tools</li><li data-start="633" data-end="699">Experience with configuration management for system deployment</li><li data-start="700" data-end="750">Understanding of system performance and tuning</li><li data-start="751" data-end="779">Basic networking knowledge</li></ul><hr data-start="781" data-end="784" /><h2 data-start="786" data-end="818">Preferred Skills / Experience</h2><ul data-start="820" data-end="1082"><li data-start="820" data-end="883">Software development experience in any programming language</li><li data-start="884" data-end="945">Experience running services in containerized environments</li><li data-start="946" data-end="1000">Experience with monitoring and observability tools</li><li data-start="1001" data-end="1082">Experience with large-scale data processing or distributed systems technologies</li></ul><hr data-start="1084" data-end="1087" />Job Order: 06940-0013342129 Location: Tokyo Salary: Annual ¥6,864,000 By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<img src="https://counter.adcourier.com/bHVrZS5mdXJuaXZhbC4yODM3MC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-12-19T01:12:31Z

Software Engineer

Tokyo,
remote
Permanent
9.0M - 13.0M JPY / Yearly
Company Profile | 企業概要<ul><li>Innovative web solutions company building cutting-edge applications that maximize user experience and business outcomes is seeking a Senior Ruby on Rails Engineer to join their international team.</li></ul> The Role | 職務内容<ul><li>Deliver working web-based software using the Ruby on Rails framework in a hands-on technical capacity.</li><li>Propose solutions as a technology specialist within a small product team to drive optimal user experience and business results.</li><li>Collaborate with UX designers and cross-functional team members to build robust, scalable web applications.</li><li>Work with modern technologies including Turbo Frame, Turbo Stream, and Stimulus JavaScript framework.</li></ul> Your Skills | 応募資格<ul><li>-5+ years of recent commercial programming experience with strong emphasis on web solutions and Ruby on Rails.</li><li>-Expert understanding of Ruby on Rails, Ruby programming language, JavaScript, TypeScript, HTML, and CSS.</li><li>-Business-level Japanese and English proficiency (mandatory).</li><li>-Experience with AWS Services and Docker containerization.</li><li>-Degree in Computer Science or equivalent experience.</li><li>-Valid working visa for Japan (6+ months) or available for remote contract work until visa preparation.</li></ul> Key Highlights of the Role | おすすめのポイント<ul><li>20+ paid days off per year with flexible work hours and remote work opportunities.</li><li>Join an international team of talented creators who value your technical input.</li><li>Visa sponsorship available after 6-month trial period.</li><li>Work with cutting-edge technologies including real-time communication, CRDT, and generative AI APIs.</li></ul>Salary900,000 yen - 1,300,000 yenLocationTokyo Reference number : 06940-0013336854By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<hr />「応募」をクリックすることにより、お客様はロバート・ハーフ（以下、当社）のプライバシー通知（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）に同意したものとみなされます。 応募書類には、人種、信条、社会的身分、病歴、犯罪の経歴などの要配慮個人情報や、配偶者、扶養家族など採用選考に無関係な情報を含めないようご注意ください。記載する情報はすべて正確かつ真実であること、また、ハイパーリンクを含める場合には、安全性と信頼性が確保されていることをご確認ください。<img src="https://counter.adcourier.com/V2F0dW55dS5TaXJpcGFpcm9qLjkzMzUxLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-11-18T07:53:55Z

Software/Applications Architect

Tokyo,
remote
Permanent
15.5M - 15.5M JPY / Yearly
Company ProfileA Japan-based fintech company providing cross-border payment solutions is seeking an experienced iOS Developer to help build and scale its merchant-facing mobile application. This role offers a rare opportunity to design and develop a mobile product from the ground up, shaping both the technical architecture and user experience.You will play a key role in creating intuitive mobile experiences that support merchant onboarding, payment acceptance, financial management, and reporting. The position involves close collaboration with product managers, backend engineers, and Android developers to deliver high-quality mobile solutions across platforms.While the company operates in a remote-first environment, this role is based in Tokyo and requires willingness to relocate to Japan.The Role<ul><li>Develop and maintain the merchant-facing iOS application</li><li>Collaborate with product managers and engineers to define, design, and ship new features</li><li>Contribute to mobile architecture and technical design across iOS and Android platforms</li><li>Work closely with backend engineers to design and implement mobile features</li><li>Ensure high performance, reliability, and usability of mobile applications</li></ul>Your Skill<ul><li>3+ years of experience in iOS application development</li><li>Strong knowledge of modern iOS SDKs and the mobile development lifecycle</li><li>General understanding of the Android platform and Kotlin</li><li>Experience integrating mobile applications with RESTful APIs</li><li>Solid understanding of mobile UI/UX best practices and platform design guidelines</li><li>Ability to work across multiple areas of the tech stack (T-shaped developer mindset)</li><li>Strong collaboration and communication skills</li></ul>Nice to Have<ul><li>Experience with cross-platform mobile frameworks</li><li>Experience working in a Japanese business environment</li><li>Intermediate-level Japanese language skills</li></ul>Key Highlights of the Role<ul><li>Flexible remote work with optional office access</li><li>Paid vacation plus additional seasonal leave</li><li>Paid birthday leave</li><li>Self-learning and skill development budget</li><li>Japanese language training support</li></ul>Location TokyoSalary 15.5 million yen Reference Number: 06940-0013342911 By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<img src="https://counter.adcourier.com/S29qaS5ZYWdpbnVtYS4zMTgwNS4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-12-24T01:27:36Z

IT Consultant

Tokyo,
remote
Contract
8.1M - 8.1M JPY / Yearly
Key Responsibilities； Security Governance & Risk Management<ul><li>Perform security risk evaluations and develop risk mitigation approaches.</li><li>Develop and enforce security guidelines, benchmarks, and processes.</li><li>Contribute to building cybersecurity roadmaps and governance structures.</li><li>Partner with senior leaders to report on risk status and program maturity.</li></ul>Privacy & Data Protection<ul><li>Carry out privacy program reviews and gap assessments.</li><li>Participate in designing and deploying privacy frameworks (such as GDPR, APPI).</li><li>Contribute to Privacy-as-a-Service (PRaaS) initiatives and third-party risk evaluations.</li><li>Safeguard compliance with international and domestic data protection laws.</li></ul>Technology Risk & Compliance<ul><li>Deploy IT risk management frameworks integrated with organizational objectives.</li><li>Execute IT controls reviews and assist with audit preparation.</li><li>Aid in IT governance programs and in meeting regulatory requirements.</li></ul>Location <ul><li>Tokyo</li></ul>Salary<ul><li>8 million yen</li></ul> Reference Number: 67040-0013350790 By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure. <img src="https://counter.adcourier.com/bHVrZS5mdXJuaXZhbC40MjgxMi4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-12-29T01:20:51Z

Java Backend Engineer

Tokyo,
remote
Contract
8.5M - 8.5M JPY / Yearly
Client Profile Japanese multinational conglomerate company. (e-commerce, fintech, digital content, etc.)The Role<ul><li>Backend development for large-scale point systems</li><li>Design, code, review, test, and release web applications</li><li>Enhance and improve existing services and features</li><li>Introduce new architectures and refactor systems for scalability</li><li>Improve development environments (e.g., CI/CD, test automation)</li><li>Troubleshoot production issues and drive service reliability</li></ul>Your Skills Required Qualifications<ul><li>5+ years of Java development experience</li><li>Experience in designing and developing B2C services</li><li>Hands-on experience with relational databases (e.g., MySQL, Oracle, Clustrix)</li><li>Familiarity with Agile development methodologies</li><li>Experience using containers (e.g., Docker, Kubernetes)</li><li>English: Business level (TOEIC 800+ or equivalent)</li><li>Japanese: Not required</li></ul>Preferred Qualifications<ul><li>Experience designing high-traffic systems</li><li>Frontend development experience</li><li>CI/CD pipeline and test automation experience</li><li>Application deployment and operations experience (on-premises or public cloud)</li><li>Knowledge of NoSQL (e.g., Couchbase) or KVS</li><li>Experience collaborating with global teams</li><li>Familiarity with messaging systems (e.g., Kafka, RabbitMQ)</li></ul> LocationTokyo Hourly Salary 4,100 yen Reference Number: 06940-0013315544 By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjgyNTkwLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-10-31T03:45:46Z

IT Consultant

Tokyo,
remote
Contract
20.0M - 20.0M JPY / Yearly
Company ProfileA global consulting firm specializing in business and technology solutions, helping organizations improve performance, manage risk, and achieve sustainable growth. The Role<ul><li>As an IT Consultant, you will work closely with clients to assess their technology needs, design and implement solutions, and ensure alignment with business objectives.</li></ul> Your Skills <ul><li>Minimum 3+ years of experience in IT consulting or technology advisory.</li><li>Strong understanding of IT infrastructure, cloud technologies, and cybersecurity principles.</li><li>Experience with ERP systems, system integration, and digital transformation projects.</li></ul> Location Tokyo Salary10,000 yen hourly Reference Number: 06940-0013342829 By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<hr />「応募」をクリックすることにより、お客様はロバート・ハーフ（以下、当社）のプライバシー通知（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）に同意したものとみなされます。 応募書類には、人種、信条、社会的身分、病歴、犯罪の経歴などの要配慮個人情報や、配偶者、扶養家族など採用選考に無関係な情報を含めないようご注意ください。記載する情報はすべて正確かつ真実であること、また、ハイパーリンクを含める場合には、安全性と信頼性が確保されていることをご確認ください。<img src="https://counter.adcourier.com/bHVrZS5mdXJuaXZhbC4xNzgzOS4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-12-16T03:46:35Z

DevOps

Tokyo,
remote
Permanent
10.0M - 12.0M JPY / Yearly
Company ProfileA global software company providing cloud-based Product Lifecycle Management (PLM) solutions to major manufacturers in aerospace, automotive, and technology industries is looking for a Site Reliability Engineer in Tokyo. The Role<ul><li>Build and manage cloud systems on Microsoft Azure for enterprise customers.</li><li>Automate routine tasks to make operations more efficient using modern DevOps tools.</li><li>Work with DevOps, support, and development teams to keep services running smoothly.</li><li>Fix technical issues related to security, performance, and system availability.</li><li>Set up cloud environments across different regions and help customers when they need support.</li></ul> Your Skills <ul><li>Experience with cloud platforms (Azure preferred), Docker, and Kubernetes.</li><li>Good understanding of networks: firewalls, load balancers, VPNs.</li><li>Experience running large-scale production systems.</li><li>Familiar with tools like Git, PowerShell, Terraform, and CI/CD pipelines.</li><li>Strong problem-solving abilities and willingness to learn.</li><li>"Infrastructure as code" mindset-automating everything possible.</li></ul> Key Highlights of the Role<ul><li>Use modern cloud technologies in a hybrid work environment (office + remote).</li><li>Support global manufacturing leaders with critical business systems.</li><li>Work with an innovative team that values automation and continuous improvement.</li><li>Career growth opportunities from entry to senior levels based on your experience.</li><li>Join a collaborative, technology-focused workplace.</li><li> </li></ul>Location Tokyo Salary10 - 12 million yen Reference Number: 06940-0013340443By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<hr />「応募」をクリックすることにより、お客様はロバート・ハーフ（以下、当社）のプライバシー通知（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）に同意したものとみなされます。 応募書類には、人種、信条、社会的身分、病歴、犯罪の経歴などの要配慮個人情報や、配偶者、扶養家族など採用選考に無関係な情報を含めないようご注意ください。記載する情報はすべて正確かつ真実であること、また、ハイパーリンクを含める場合には、安全性と信頼性が確保されていることをご確認ください。<img src="https://counter.adcourier.com/V2F0dW55dS5TaXJpcGFpcm9qLjc3NTg3LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-11-25T06:42:29Z

Software Engineer

Tokyo,
remote
Permanent
9.5M - 9.5M JPY / Yearly
Company ProfileA Japanese subsidiary of the global cybersecurity firm. it operates independently in Japan. The Role<ul><li>Design, develop, and maintain high-quality software solutions.</li><li>Collaborate with cross-functional teams to define requirements and deliver scalable applications.</li></ul> Your Skills <ul><li>Proficiency in programming languages such as Java, Python, or C++.</li><li>Experience with cloud platforms and distributed systems.</li><li>Excellent problem-solving skills and attention to detail.</li></ul> Location Tokyo Salary9.5 million yen Reference Number: 06940-0013356214 By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<img src="https://counter.adcourier.com/S29qaS5ZYWdpbnVtYS44ODc1Ny4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2026-01-14T02:31:15Z

Full Stack Engineer

Tokyo,
remote
Permanent
8.0M - 15.0M JPY / Yearly
Company Profile A growing company providing a next-generation collaborative management platform that connects executives with operational teams. Our solution centralizes "people, assets, and capital" covering budgeting & forecasting, workforce planning, capital investment, and rebate management enabling fast, data-driven decision-making. Our strengths include an intuitive UI/UX and expert support leveraging insights from former corporate strategy professionals. In addition to our existing products, we are expanding into new enterprise solutions. Flexible, fully remote work arrangements are available.The Role This is an engineering position leading the technical side of new business initiatives in the management domain. You will work closely with Product Managers and business teams, driving end-to-end 0→1 development-from deeply understanding customer challenges to defining the MVP, designing the architecture, prototyping, and implementation. You will have significant discretion in technical decision-making and play a key role in directly shaping the direction of the product. Your Skills Must-Have:<ul><li>5+ years of experience in web application development</li><li>Experience developing with Ruby on Rails</li><li>Experience in architecture design and technology selection</li><li>Experience driving projects as a technical lead</li><li>Experience contributing to 0→1 phases of in-house product development</li></ul>Preferred:<ul><li>Experience working in Agile/Scrum environments</li><li>Ability to prioritize based on business requirements and domain understanding</li><li>Proactive experience in improving organizational or team processes</li><li>End-to-end experience from development to operations</li></ul>Key Highlights of the Role <ul><li>Fully remote work and flexible working arrangements</li><li>Significant autonomy to technically lead 0→1 development of new business initiatives</li><li>Opportunity to collaborate closely with Product Managers, corporate planning, and design teams to create customer-driven products</li><li>End-to-end involvement from architecture design to prototyping and iterative improvements</li><li>Career growth potential toward Tech Lead or VPoE roles</li><li>The chance to tackle high-impact product development in the challenging domain of management solutions, delivering real value</li></ul>Location TokyoSalary 8－15 million yen Reference Number：06940-0013337685 By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<hr />「応募」をクリックすることにより、お客様はロバート・ハーフ（以下、当社）のプライバシー通知（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）に同意したものとみなされます。 応募書類には、人種、信条、社会的身分、病歴、犯罪の経歴などの要配慮個人情報や、配偶者、扶養家族など採用選考に無関係な情報を含めないようご注意ください。記載する情報はすべて正確かつ真実であること、また、ハイパーリンクを含める場合には、安全性と信頼性が確保されていることをご確認ください。<img src="https://counter.adcourier.com/U2hpbWFtdXJhLlNoaW5vYnUuNzQ3MTYuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-11-19T03:12:32Z

Site Reliability Engineer (SRE)

Tokyo,
remote
Contract
10.8M - 10.8M JPY / Yearly
Company ProfileMobility-focused technology subsidiary of a major Japanese automotive manufacturerThe RoleThis role is critical in accelerating production readiness by bringing external SRE expertise, improving operational maturity, and enabling the engineering team to adopt industry best practices. You will play a hands-on role in on-call operations, incident response, observability, and continuous improvement while elevating the team's operational knowledge.<ul><li>Knowledge Transfer & Training: Share SRE best practices, train engineers, establish effective on-call structures, and support tool selection (e.g., PagerDuty).</li><li>On-Call Operations: Serve as the first responder for daily alerts and user inquiries, drive root-cause identification, and escalate appropriately.</li><li>Alert Optimization: Improve alert quality, reduce noise, and ensure accurate and actionable signals.</li><li>Incident Management: Lead incident response, run post-mortems, and implement preventive measures across the organization.</li><li>Monitoring & Reliability: Define and optimize SLOs/SLIs, enhance monitoring systems, and elevate reliability practices.</li><li>Cross-Functional Collaboration: Communicate clearly with SRE, infra, data, and service teams to drive operational alignment.</li><li>Documentation: Build and maintain structured SoPs and runbooks.</li><li>Continuous Improvement: Enhance alerting, operations, and observability (o11y) maturity.</li><li>Security Integration: Incorporate security and compliance into all operational workflows.</li><li>Tooling & Innovation: Evaluate and introduce new technologies that improve efficiency and reliability.</li></ul>LocationTokyoSalary5,210 yen / Hour Reference Number: 06940-0013331590By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<hr />「応募」をクリックすることにより、お客様はロバート・ハーフ（以下、当社）のプライバシー通知（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）に同意したものとみなされます。 応募書類には、人種、信条、社会的身分、病歴、犯罪の経歴などの要配慮個人情報や、配偶者、扶養家族など採用選考に無関係な情報を含めないようご注意ください。記載する情報はすべて正確かつ真実であること、また、ハイパーリンクを含める場合には、安全性と信頼性が確保されていることをご確認ください。<img src="https://counter.adcourier.com/YXJ5YS5wYW11bmdrYXMuMzg0NzMuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-12-02T06:50:24Z