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ParafinParafinSan Francisco, CA

Data Scientist

Lead end-to-end data science projects spanning growth experiments, repayment forecasting models, and data infrastructure. Build ML models, design metrics, and partner cross-functionally to expand responsible access to capital.

200k – 330k
Hybrid3+ YOEData Science

About the role

Responsibilities

  • Design experiments and analyses that expand access to capital while keeping the portfolio healthy
  • Study the full merchant lifecycle to find where we can responsibly extend more capital
  • Model prospective partner portfolio performance before launching
  • Build and ship ML models (XGBoost and similar) that forecast merchant repayment behavior
  • Measure the impact of servicing efforts on merchant outcomes
  • Build data pipelines that power every analysis, dashboard, and ML model
  • Automate processes using APIs, ML, and LLMs
  • Build internal tools (Streamlit apps, dashboards, Slack bots) used daily by the company
  • Lead projects from end to end across growth, portfolio monitoring, and infrastructure domains

Requirements

  • Bachelor's Degree (or higher) in Computer Science, Statistics, Mathematics, Data Science, or related fields
  • Statistical reasoning: design concise metrics, apply causal inference methods, develop predictive ML models
  • Business acumen: identify and prioritize business problems, anticipate impact on financial performance and compliance
  • Engineering mindset: write legible, reliable, tested code; contribute to model and data infrastructure design
  • Leadership and collaboration: build trusted relationships, document work, seek feedback, mentor other DS members
  • Focused execution: prioritize high-impact work, scope projects rigorously, act with urgency
  • AI tool fluency: rapidly adopt emerging AI tools and critically evaluate AI-generated outputs

Nice-to-Haves

  • Management experience
  • Graduate studies in physics, mathematics, bioengineering, economics, financial engineering, or electrical engineering
  • Professional experience at Robinhood, Uber, Lyft, Airbnb, Faire, Segment, Facebook, or Google

Compensation & Benefits

  • Salary: $200k - $235k (individual contributor); $235k - $330k+ (Senior/Staff)
  • Equity grant
  • Medical, dental & vision insurance
  • Work from home flexibility
  • Unlimited PTO
  • Commuter benefits
  • Free lunches
  • Paid parental leave
  • 401(k)
  • Employee assistance program

Skills

PythonSQLXgboostMachine LearningCausal InferenceFeature EngineeringData PipelinesStreamlitStatistical ModelingExperiment Design

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