Senior Machine Learning Data Scientist

Extend is revolutionizing the post-purchase experience for retailers and their customers by providing AI-driven solutions that enhance customer satisfaction and drive revenue growth. The Fraud & Machine Learning team is responsible for detecting and preventing fraud, assessing risk, and unlocking business value through cutting-edge machine learning models. As a Senior ML Data Scientist, you will own the development of machine learning models to detect and prevent fraud.

Requirements

• Hands-on experience building and deploying machine learning systems into production
• Strong proficiency in Python and SQL
• Strong understanding of ML fundamentals: model selection, evaluation methodology, feature engineering, and common failure modes
• Hands-on experience with PyTorch, scikit-learn, and XGBoost (or similar gradient boosting frameworks)
• High attention to detail, strong intellectual curiosity, and a deep understanding of user behavior and fraud patterns

Benefits

• Competitive salary based on experience
• Full medical and dental & vision benefits
• Stock in an early-stage startup growing quickly
• Generous, flexible paid time off policy
• 401(k) with Financial Guidance from Morgan Stanley