Mercor
Senior Data Scientist - AI Expert
San Francisco, California, US
Role snapshot
Mercor is hiring a Senior Data Scientist - AI Expert on a full-time basis. This is a role based in San Francisco, California, US.
- Company
- Mercor
- Location
- San Francisco, California, US
- Job type
- Full-time
- Posted
- Oct 30, 2026
Who this role suits
The listing does not state a required experience level here. Read the requirements in the description below and apply if they match your background.
How to prepare your application
- Match your résumé to the requirements in the description, using the same wording where it is honest to do so.
- Prepare a short example for each requirement you meet, and be ready to explain any you only partly meet.
- Read what Mercor publishes about its product or team, so you can say clearly why this role and this company.
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About the role
About the job
Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey.
Position: Senior Data Scientist and Data Engineering Experts
Type: Contract
Compensation: $120–$180/hour
Location: Remote
Role Responsibilities
- Design realistic, challenging data science and data engineering tasks, including exploratory analyses, statistical modeling, machine learning pipelines, ETL, and data pipeline design.
- Illustrate "what good looks like" by writing precise, task-specific criteria for data science and data engineering deliverables.
- Apply consistent, evidence-based judgment to ensure assessments are reproducible and defensible.
- Take structured feedback from senior reviewers and iterate on submitted work.
- Train and evaluate frontier AI models using expertise from top technology, quantitative, or financial firms.
- Work independently and asynchronously to improve AI model performance.
Qualifications
Must-Have
- 4+ years of professional data science, data engineering, or machine learning experience.
- Strong command of Python, SQL, statistical modeling, machine learning, experimentation, and causal inference.
- Proven ability to turn messy real-world data into rigorous analyses and reliable pipelines.
- Excellent written English, including the ability to explain technical findings clearly.
- Bachelor's degree from an English-speaking country.
- Detail-oriented, consistent approach to evaluating complex work.
Application Process (Takes 20–30 mins to complete)
- Upload resume
- AI interview based on your resume
- Submit form
Resources & Support
- For details about the interview process and platform information, please check: https://talent.docs.mercor.com/welcome
- For any help or support, reach out to: [email protected]
PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.