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Senior Data Scientist - Risk ML

  • Canada, New York, New York, United States, Portland, Oregon, United States, San Francisco, California, United States
  • Remote
  • Posted Sep 2, 2026
  • 1 position

US$166,600–US$250,900 / year

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Employment type
Full-time
Experience level
Senior · 5+ years
Posting language
English
Working hours
40 hours per week

Job summary

You will build, validate, and deploy machine learning models to detect and mitigate fraud in real time. Additionally, you will collaborate with engineering and risk teams to ensure data quality and optimize model performance.

Job details

In 1999, NASA lost contact with its Mars Climate Orbiter after a 9-month journey from Earth. It began its planned orbital insertion maneuver but went out of radio contact after passing behind Mars. While we may never know whether it was destroyed in the atmosphere or re-entered heliocentric space, we can draw the lesson that getting the details (in this case, units) right is critical, especially when shooting for the stars. While Mercury’s cosmic journey may be more metaphorical, we have our own sky-high ambitions and the need to marry those with precise data analysis. To that end, we are hiring a Machine Learning-focused Data Scientist to support our Risk team. This team is responsible not only for detecting, monitoring, and mitigating both first- and third-party fraud but also ensuring we know and understand our customers while monitoring their behavior for financial crime risk. You’ll play a key role in strengthening our fraud defenses while ensuring that Mercury continues to deliver a smooth and trustworthy banking* experience. This is an opportunity to join Mercury at a pivotal moment in our growth. You’ll be working on some of the most critical challenges facing the business and collaborating across product, engineering, and risk to protect our customers and the financial system at large. Here are some things you’ll do on the job: Build, validate, and deploy machine learning models to identify and prevent fraud in real time Support the reproducibility and robustness of said models through documentation, testing, and monitoring Ensure data quality and reliability across pipelines and tools Collaborate with Risk Strategy to ideate on model inputs and applications and with Engineering optimize deployment and observability You should have: 5+ years of experience working with and analyzing large datasets to solve problems and drive impact, with 3+ years of ML experience Proficiency in SQL and experience using it to understand and manage imperfect data Proficiency in Python and experience with statistical modeling and machine learning Experience deploying and monitoring machine learning models in production Comfort working in a fast-paced environment with evolving priorities Ideally you also have: 1+ years of relevant risk experience Familiarity with LLMs or other GenAI and how they can be applied to risk or fraud detection Experience with modern data tools for pipelines and ETL (e.g., dbt) Experience with model governance as required in finance or other regulated industries Experience building zero-to-one solutions in ambiguous or greenfield problem spaces *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. #LI-AC1 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—$250,900 USD Canadian employees (any location): $157,400—$237,100 CAD

What you’ll do

You will build, validate, and deploy machine learning models to detect and mitigate fraud in real time. Additionally, you will collaborate with engineering and risk teams to ensure data quality and optimize model performance.

Requirements

Candidates must have 5+ years of experience with large datasets, including 3+ years of machine learning experience. Proficiency in Python and SQL is required, along with experience in model deployment and production monitoring.

Benefits

  • Base salary
  • Equity
  • Stock options
  • RSUs

Listed skills

  • SQL · Preferred
  • Data analysis · Preferred
  • Risk Management · Preferred
  • Machine learning · Preferred
  • Python · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

  • Machine learning
  • SQL
  • Python
  • Statistical modeling
  • Fraud detection
  • Data analysis
  • Model deployment
  • Model monitoring
  • ETL
  • Dbt
  • Risk management
  • Data quality
  • Financial crime risk
  • LLMs
  • GenAI
  • Model governance
  • Pipelines
  • Financial Technology (FinTech)
  • Generative Artificial Intelligence
  • Observability
  • Internal Pay Equity
  • Machine Learning Model Monitoring And Evaluation
  • Fraud Detection
  • Data Analysis
  • Banking
  • Banking Services
  • Software As A Service (SaaS)
  • Extract Transform Load (ETL)
  • Data Quality
  • Finance
  • Financial Systems
  • Governance
  • Python (Programming Language)
  • Machine Learning
  • Product Engineering
  • SQL (Programming Language)
  • Statistical Modeling
  • Data Science
  • Trustworthiness

Job areas

  • Data & Analytics
  • Technology
  • Finance & Accounting
  • Software
  • Engineering
  • Data Scientist
  • Systems Analysts
  • Data Scientists

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