Role Overview
Mercor is hiring a Senior Data Scientist /hr PT. This is a contract role in Toronto, Ontario. Part of Mercor's Data Science hiring. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
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: Researcher and Technical Expert
Type: Contract
Compensation: $50–$100/hour
Commitment: 30+ hours/week
Role Responsibilities
- Design challenging, real-world STEM problems to evaluate model reasoning and problem-solving.
- Implement tasks using Python in an agentic development environment.
- Analyze model/agent behavior to diagnose reasoning gaps and improve performance.
- Develop reproducible and testable deliverables with clear specifications and deterministic tests.
- Collaborate with AI research teams to enhance model outputs and training data quality.
- Work independently and asynchronously to meet deadlines and project goals.
Qualifications
Must-Have
- Deep expertise in data science, machine learning, finance, and/or Python-based coding.
- Active or recently graduated PhD (Top 20 U.S.-based school).
- Strong research background in frontier STEM topics.
- Ability to engage reliably for 30+ hours/week, primarily on weekdays.
- Demonstrated technical output such as high-quality open-source contributions.
- Comfort reading and reasoning about agent behavior traces to diagnose failure modes.
Preferred
- Familiarity with agentic frameworks and OSS ecosystems like LangChain, MetaGPT, AutoGen, AutoGPT, CrewAI, LlamaIndex, BabyAGI, SuperAGI, CAMEL, AgentGPT, Dify.
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/welcome
- For any help or support, reach out to: support@mercor.com
PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.
Frequently Asked Questions
How do I apply for the Senior Data Scientist /hr PT position at Mercor?
Use the Apply button above to submit your application directly to Mercor. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Senior Data Scientist /hr PT position at Mercor located?
This position is based in Toronto, Ontario. Mercor has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Senior Data Scientist /hr PT at Mercor earn?
Mercor has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Senior Data Scientist /hr PT role at Mercor posted?
This role was posted on March 21, 2026 (89 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
How much experience does the Senior Data Scientist /hr PT role at Mercor require?
This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. Mercor lists their specific requirements in the description below, so review the must-have qualifications closely before applying.
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