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// POSTED: Apr 17, 2026

Senior Machine Learning Data Scientist

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Job Description: • Develop and deploy machine learning models to prevent and detect fraud and abuse, leveraging structured and unstructured data sources. • Own the end-to-end ML lifecycle, including data preprocessing, feature engineering, model training, evaluation, validation, and deployment. • Monitor and maintain models in production to ensure performance and reliability over time. • Collaborate with product and engineering teams to integrate machine learning models into production applications. • Foster a culture of learning, experimentation, and collaboration within and across partner teams. Requirements: • 3+ years of experience building and deploying production machine learning models. • Previous experience building fraud detection or risk assessment tools is a strong plus. • Solid understanding of fundamental machine learning and computer science concepts, software design best practices. • Expertise with Python, including common ML/AI libraries such as Scikit-learn, Pytorch, or Tensorflow. • Expertise with SQL; experience with dbt or graph databases is a plus. • Familiarity with large language models (LLMs) and their applications in risk and fraud detection. • Experience with AWS, cloud computing, and/or Typescript is a plus. • Excellent communication and stakeholder management skills, with a track record of working cross-functionally to drive business impact. • Attention to detail, intellectual curiosity, and a deep understanding of user behavior and fraud patterns. • Empathy and humility. Benefits: • Competitive salary based on experience, with 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.
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