Data Scientist - Merchant and Loyalty Rewards Protection Analyst, AVP

Job description

This role will advance detection and risk modeling strategies across merchant integrity and rewards ecosystems. This role will develop scalable behavioral models and detection frameworks that proactively identify merchant impersonation, inauthentic business activity, and loyalty/rewards exploitation. This individual will translate emerging risk patterns into measurable signals and deploy analytic solutions that enhance enterprise protection controls. This role will manage and execute fraud analytics and fraud detection strategies supporting Citi’s North American and global credit card and retail bank businesses. Responsibilities: Qualifications : - Design, develop, and optimize detection models addressing merchant impersonation, inauthentic entities, synthetic or coordinated activity, loyalty/rewards accrual and redemption anomalies, and promotion exploitation. - Develop and refined both micro-level and macro-level portfolio-wide anomaly detection, linkages, and behavioral anomalies. - Apply graph/network analytics to identify collusion or coordinated abuse patterns - Own and optimize fraud rules, risk scores, and model thresholds. - Monitor performance and iterate based on emergin...