Lead Data Scientist

Brigit

Data Scientist responsible for ML models to help people build financial wellness at Brigit. Focused on credit risk, fraud prevention, and optimizing transactions.

Posted 6/29/2026full-timeSan Francisco • California • 🇺🇸 United StatesSenior💰 $185,000 - $215,000 per yearWebsite

Tech Stack

Tools & technologies

PandasPythonScikit-LearnSQL

About the role

Key responsibilities & impact

Build, test and roll out new underwriting and risk models to better predict risk
You’ll have ownership of the full modeling lifecycle from conception through to production and realize every bit of impact along the way.
Build, test and roll out new or improved models related to fraud and payments.
Contribute to building best practices for feature development, model training and model testing and monitoring.
Analyze how our customer base is shifting as we grow and pinpoint areas we can improve.
Help our existing engineering and business teams achieve our cross-functional goals.
Mentor more junior data scientists or aspiring data scientists across the data team.

Requirements

What you’ll need

6+ years of experience doing data science (modeling + analysis)
Advanced degree in data science, statistics, computer science, or related field.
Proven expertise in machine learning principles and techniques
Experience in Python, using industry-standard modeling toolkits like sklearn, JupyterLab, pandas, matplotlib, statsmodels, etc.
Experience in writing complex SQL queries and the ability to put together multiple data sources
Experience creating training data sets, training models, tuning hyperparameters, performing validation, running A/B tests in production, creating and owning performance and model monitoring
Experience building classification and prediction models, testing them in a startup environment and iterating to improve their models.
Ability to work effectively and communicate ideas/code clearly in a cross functional team environment (Engineering, Product and Business teams)
Experience building end-to-end data science solutions to address business needs: from ideation to deployment & AB testing
Strong written and verbal communication skills, with the ability to explain complex concepts to various audiences

Benefits

Comp & perks

Medical, dental, and vision insurance
Flexible PTO Policy
401k plan
Paid Parental Leave
Physical and mental wellbeing benefits including Wellhub for access to virtual workouts and discounted gym memberships, and Headspace for covered virtual therapy sessions and unlimited on demand health support
Monthly reimbursements to use against wifi and cell phone bills
Annual reimbursement for Learning & Development
Help hard working Americans build a brighter financial future
High-growth company
A dynamic, flexible and collaborative start-up work environment with a highly talented team

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Data ScienceModelingAnalysisClassification ModelsPrediction ModelsA/B TestingHyperparameter TuningFeature DevelopmentModel Monitoring

Soft Skills

Communication SkillsMentoringCross-Functional Collaboration

Certifications

Advanced Degree in Data ScienceAdvanced Degree in StatisticsAdvanced Degree in Computer Science