Parafin
Data Scientist, Underwriting
$200K–$330K
San Francisco, CA · Hybrid · Full-time · Posted Mar 20, 2026
- Education
- Open to candidates from a variety of academic backgrounds and professional experiences.
About the job
Own the data-science lifecycle for Parafin’s underwriting engine, developing models and experiments to guide lending eligibility, offer sizing, pricing, growth, and risk decisions.
What you'll do
- Design, train, and deploy production underwriting models.
- Design experiments and metrics to inform risk and pricing decisions.
- Partner with engineering and product teams to build automated underwriting systems and identify improvements to growth and profitability.
What they ask for
- Apply statistical reasoning, experimental design, causal inference, and machine learning to business problems.
- Write legible, reliable, tested code and design scalable, reliable, observable technical systems.
- Prioritize and execute high-impact projects; build trusted stakeholder relationships and communicate work proactively.
Pay
$200k - $260k USD base salary; $265-330k+ USD base salary
Tools
LLMs
AI focus
Use LLMs to help build risk models and forecasts for underwriting merchants using banking transaction data.
Model-written summary · the original posting is authoritative