Visa

Visa is building a new Payments Foundation Models team to develop next-generation AI models for fraud and identity solutions, with potential applications in credit risk and personalized commerce. The Senior Data Scientist will train, evaluate, and document these models, collaborating with cross-functional teams to improve their quality and adoption. This role involves hands-on development, end-to-end data processing, deep learning model training (self-supervised, fine-tuning), and ensuring models navigate risk management processes. The position also includes leading deployment, collaborating with data engineers, communicating insights, and mentoring junior team members.

Senior Machine Learning Scientist at Visa to design, develop, and deploy next-generation AI/ML models for fraud detection, risk mitigation, and transaction monitoring in the payments ecosystem. The role involves full lifecycle ownership, research into emerging techniques, patent filing, and integrating models into production pipelines, with a focus on scalability, explainability, and robustness.