<p>We are looking for an experienced Senior Fraud Analyst focused on transaction monitoring to join a startup financial service company located in San Francisco, California. This 3-month contract role has a possibility of becoming permanent. The main focuses include <strong>real‑time authorization decisions, fraud rule strategy, and performance optimization</strong> across fraud losses and false positives. The ideal candidate brings deep experience from an <strong>issuing bank, BIN sponsor, or program manager environment.</strong></p><p><br></p><p>Responsibilities:</p><ul><li>Perform <strong>real‑time authorization decisioning and queue review</strong>, approving or declining flagged transactions</li><li><strong>Build, tune, and maintain fraud rules</strong>, including velocity rules, spend pattern logic, and merchant category (MCC) restrictions</li><li>Analyze transaction data to <strong>identify emerging fraud trends</strong> and design new detection strategies</li><li>Balance <strong>fraud loss prevention with false‑positive management</strong> to meet approval‑rate and loss targets</li><li>Partner cross‑functionally with Product, Risk, and Operations to improve authorization performance</li><li>Leverage issuer fraud platforms and rule engines such as <strong>Falcon, Forter, Sardine, Sift, or similar tools</strong></li><li>Apply a strong understanding of <strong>interchange, authorization flows, and network decline codes</strong> to decisioning and rule design</li></ul>
