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 real‑time authorization decisions, fraud rule strategy, and performance optimization across fraud losses and false positives. The ideal candidate brings deep experience from an issuing bank, BIN sponsor, or program manager environment. Responsibilities:<ul><li>Perform real‑time authorization decisioning and queue review, approving or declining flagged transactions</li><li>Build, tune, and maintain fraud rules, including velocity rules, spend pattern logic, and merchant category (MCC) restrictions</li><li>Analyze transaction data to identify emerging fraud trends and design new detection strategies</li><li>Balance fraud loss prevention with false‑positive management 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 Falcon, Forter, Sardine, Sift, or similar tools</li><li>Apply a strong understanding of interchange, authorization flows, and network decline codes to decisioning and rule design</li></ul>

<ul><li>Extensive experience in issuer‑side transaction monitoring and authorization fraud</li><li>Hands‑on experience with fraud rule creation, tuning, and optimization</li><li>Strong analytical skills with the ability to translate data into actionable fraud strategies</li><li>Working knowledge of card network authorization flows, decline codes, and interchange mechanics</li><li>Experience using issuer fraud platforms or rule engines (Falcon, Forter, Sardine, Sift, or similar)</li><li>Background at an issuing bank, BIN sponsor, or card program manager</li><li>Experience limited to merchant acquiring or payment processing only will not be sufficient</li><li>Can work in a startup environment </li></ul> If you're interested in this position, please apply to this position and contact Alicia Robb at alicia.robb - at - roberthalf - .com with your word resume and reference job ID# 00410-0013322077

Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles. Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. <a href="https://www.roberthalf.com/us/en/mobile-app" target="_blank">Download the Robert Half app</a> and get 1-tap apply, notifications of AI-matched jobs, and much more. Robert Half will consider qualified applicants with criminal histories in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance. All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit <a href="https://roberthalf.gobenefits.net/" target="_blank">roberthalf.gobenefits.net</a> for more information. © 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking “Apply Now,” you’re agreeing to Robert Half’s <a href="https://www.roberthalf.com/us/en/terms">Terms of Use</a> and <a href="https://www.roberthalf.com/us/en/privacy">Privacy Notice</a>.

San Francisco, CA
remote
Temporary
40.00 - 55.00 USD / Hourly
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 real‑time authorization decisions, fraud rule strategy, and performance optimization across fraud losses and false positives. The ideal candidate brings deep experience from an issuing bank, BIN sponsor, or program manager environment. Responsibilities:<ul><li>Perform real‑time authorization decisioning and queue review, approving or declining flagged transactions</li><li>Build, tune, and maintain fraud rules, including velocity rules, spend pattern logic, and merchant category (MCC) restrictions</li><li>Analyze transaction data to identify emerging fraud trends and design new detection strategies</li><li>Balance fraud loss prevention with false‑positive management 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 Falcon, Forter, Sardine, Sift, or similar tools</li><li>Apply a strong understanding of interchange, authorization flows, and network decline codes to decisioning and rule design</li></ul>
2026-02-04T19:28:44Z