Senior Data Scientist - Credit and Lending ML
Company: Mercury
Locations: San Francisco, California, United States; New York, New York, United States; Portland, Oregon, United States; Canada; United States
Salary: $166.6K – $298.8K a year
Work arrangement: Remote possible
Employment type: Full-time
Experience: 2-5 years
Education: bachelor degree
Posted: 2026-11-04
Responsibilities
You will build and own the machine learning models for the company's small business lending program, including transaction classification and revenue estimation. Additionally, you will partner with Credit and Product teams to define underwriting policies and deploy models into production with robust monitoring.
Requirements
Candidates must have at least 3 years of experience building machine learning models, with at least 1 year specifically in lending or credit algorithms. Strong proficiency in Python and SQL is required, along with the ability to explain complex models to non-technical stakeholders.
Skills
- Machine learning
- Python
- SQL
- Data warehousing
- Credit modeling
- Underwriting
- Deep learning
- Transformer models
- Production deployment
- Observability
- Monitoring
- Forecasting
- Anomaly detection
- Transaction classification
- Financial analysis
Benefits
- Base salary
- Equity
- Stock options
- RSUs
About this role
About a week before Hurricane Sandy made landfall, the two leading forecast models flatly disagreed: the American one carried the storm safely out into the Atlantic, the European one turned it hard left into New Jersey. The European model wasn't running a better simulation, it was running an ensemble. Hundreds of thousands of people were evacuated on the strength of the spread in forecast distribution, days before any single forecast could have justified moving them, and on October 29th, 2012, Sandy came ashore almost exactly where the models had put it.
At Mercury, we're building the future of financial infrastructure for startups and growing businesses. We're extending credit to those businesses, and we're doing it with proprietary access to some of the best data for understanding a borrower's business, from bank transactions to financial reporting to payroll. We're looking for a Senior/Staff Data Scientists to turn that record into a lending decision, partnering closely with Credit, Product, and Engineering.
In this role, you'll build and own the inference layer behind our small business lending program; you'll ship it into production with the monitoring and documentation that make it trustworthy; and you'll help Credit and Product decide what we should be lending in the first place.
Here Are Some Things You'll Do On The Job:
Build and own the models behind our lending program - transaction classification, recurring inflow/outflow detection, annual revenue estimation, forecasting with seasonality, anomaly detection, and more
Turn messy data streams - bank transactions, storefront sales, and more - into a defensible view of a business's health
Deploy models into a production environment with observability, monitoring, and tests
Partner with Credit on underwriting policy: what data is asked for, when follow-up information is worth the friction, and how to quantify uncertainty
Partner with Product on the shape of the product: from principal sizes and pricing to repayment terms
Assess where predictive modeling actually moves the underwriting program
Set the technical bar for ML in Credit
You Should:
Have 3+ years building ML models, and at least 1 year in lending or credit algorithms
Be opinionated and thoughtful on where ML can best lift an underwriting program
Some exposure to using deep-learning / transformer models in a professional context
Be strong in Python, with experience working on production-grade services
Be strong in SQL and at home in a data warehouse
Be able to explain a model to a credit officer, a model validator, a PM, and an engineer
Be able to set modeling standards for your data-science colleagues
Have a quantitative degree, or the equivalent built some other way
Nice To Have:
Direct experience modeling on bank transaction data
Experience in small business lending or business credit cards
Experience with revenue-based financing, merchant cash advances, or similar products
*Mercury is a fintech company, not an FDIC-insured bank. Banking services provided through Choice Financial Group and Column N.A., Members FDIC.
Mercury values diversity & belonging and is proud to be an Equal Employment Opportunity employer. All individuals seeking employment at Mercury are considered without regard to race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, sexual orientation, or any other legally protected characteristic. We are committed to providing reasonable accommodations throughout the recruitment process for applicants with disabilities or special needs. If you need assistance, or an accommodation, please let your recruiter know once you are contacted about a role.
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Total Rewards
The total rewards package at Mercury includes base salary, equity (stock options/RSUs), and benefits.
Our salary and equity ranges are highly competitive within the SaaS and fintech industry and are updated regularly using the most reliable compensation survey data for our industry. New hire offers are made based on a candidate’s experience, expertise, geographic location, and internal pay equity relative to peers.
Our target new hire base salary ranges for this role are the following:
US employees (any location):
$166,600—$298,800 USD
Canadian employees (any location):
$157,400—$282,400 CAD
About Mercury
Financial Services · 1,001-5,000 employees · headquartered in San Francisco, CA · founded 2017