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Senior Data Scientist - Flex Pay

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San Francisco Posted Oct 1, 2026
Full-time

About this role

About the Role:

We are seeking a highly analytical and results-driven Data Scientist to join our buy now pay later (BNPL) sector called Flex Pay. You will play a key role in building predictive risk models, optimizing offers and pricing, and extracting insights that drive product development, risk mitigation, and customer strategy. This role requires a strong foundation in statistics, machine learning, and programming.

  • This position is based in our San Francisco office in a hybrid capacity, specifically on Wednesdays and Thursdays.*

What You’ll Do:

  • Build and maintain credit and fraud policy simulators used to ensure properly functioning systems and identify risk decisioning enhancements.

  • Build and deploy statistical models and machine learning algorithms to solve business problems in areas like credit risk, fraud detection, pricing, customer segmentation, and marketing attribution.

  • Validate models to identify factors that may affect model performance.

  • Analyze large, structured and unstructured datasets using SQL, Python or similar tools.

  • Stay up to date with the latest trends and technologies in data science and fintech, actively research new tools and techniques available for model development.

  • Collaborate with cross-functional teams including risk, marketing, product, and engineering to define data-driven strategies.

What We Look For:

  • Advanced Degree (MS/PhD) in Data Science, Statistics, Mathematics, Computer Science, Finance, or a related quantitative discipline.

  • 3-5+ years of hands-on experience in a data science or analytics role, preferably in financial services.

  • Experience and/or strong interest in machine learning techniques (Random Forest, Gradient Boosted Trees, etc.) strongly preferred.

  • Strong proficiency in Python (Pandas, Numpy, Scikit-learn) and SQL.

  • Ability to write documentation and present analysis to people with different levels of expertise (e.g., technical staff, business leads, etc.).

  • Proactive, driven, and ability to work in a fast paced environment.

Nice to Have:

  • Experience with data visualization tools (e.g., Tableau, Power BI).

  • Experience with AI tools such as Claude

  • Experience with data technologies like PySpark.

  • Understanding of financial services concepts such as credit scoring, portfolio risk, or customer lifetime value.

What We Offer You:

  • Competitive salary and stock option plan

  • Paid coverage of medical, dental and vision insurance

  • Competitive 401(k) and RRSP program

  • Flexible PTO

  • Opportunities for professional growth and development

  • Paid parental leave

  • Health & wellness initiatives

  • The compensation range of this position in San Francisco, CA is USD $100,000-$150,000 annually plus equity and benefits. Within this range, an individual's base pay will be dependent on a variety of factors, including without limitation, job-related knowledge, skills, education, and experience.*

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