Calling all innovators - find your future at Fiserv. We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a difference at Fiserv. What does a successful Senior Data Analyst do at Fiserv? Under the guidance of a director or Portfolio Manager, you will support transaction risk management for a portfolio of merchant accounts. Develop, test, and implement machine learning models and rules to mitigate fraud and credit risk. Analyze ambiguous data to understand trends, reach conclusions, and develop strategies to improve portfolio performance. Provide internal and external reporting and analytics on an ongoing and ad hoc basis. Monitor key metrics and ensures accounts are meeting all contractual SLAs. Communicate directly with external customers. Works with minimal supervision.