First seen by our source: 19 days ago
Cosmology Physicist - Fully Remote | Up to $110/hr
@ Mercor
Toronto, Ontario
Overview
Mercor is hiring a Gravitation, Cosmology and Astrophysics Physicist (PhD) on a remote contract paying $80 to $110 per hour. The role involves evaluating and improving AI model outputs on research-level physics problems, about 10 hours per week for 8 to 10 weeks. The posting requires a PhD, verifiable publications, and LaTeX, Python, SymPy and Jupyter proficiency.
Pay:
$80–$110 an hour
Responsibilities:
- Evaluate AI model training and improve model outputs in physics challenges
- Develop complex physics problems and solutions in your subfield
- Review completed work and provide structured feedback
- Collaborate with AI research teams on model reasoning
- Work independently and asynchronously to meet deadlines
Requirements summary:
- PhD in gravitation, cosmology, astroparticle physics or related field
- Published work on torsion, Nieh-Yan or Chern-Simons terms
- Verifiable publication record with arXiv IDs or DOIs
- Proficiency in LaTeX, Python, SymPy and Jupyter
- English at B2 or above, including written reasoning
- Familiarity with an agentic coding extension in VS Code (preferred)
Tools & skills
Source and dates
Source type not verified · manatal
- Employer posting date
- Not provided
- First seen by our source
- 2026-10-18
- Source record updated
- 2026-10-18
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Senior |
| Department | Research & science |
| Hours per week | 10 |
| Travel | air: none · ground: none |
| Work setting | Home |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
| Languages | English |
| Education | Doctorate (required) |
| Fields of study | Gravitation, Cosmology, Astroparticle physics, Astrophysics |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Mercor
Saved company profile
Historical company information from a saved The Jobs API profile (LinkedIn/Crunchbase fields). It is not live-verified; figures may have changed. Missing values remain unknown.
We connect human expertise with leading AI labs and enterprises to train frontier models.
Full company description
Mercor is defining the future of work. We connect human expertise with leading AI labs and enterprises to train frontier models.
- LinkedIn followers
- 654,507
- People associated on LinkedIn
- 5,250
- Reported office locations
- San Francisco, California 94105, US
- Business categories
- Employment
- Software
- Recruiting
- Data Collection and Labeling
- Artificial Intelligence (AI)
- Machine Learning
- Other recorded names
- Mercor
- Profile identifies a recruitment agency
- Yes
- Reported total investment
- 483,600,000
Currency and observation date were not supplied; this is not a current valuation or a funding round.
Mercor is defining the future of work. We connect human expertise with leading AI labs and enterprises to train frontier models.
| Field | Value |
|---|---|
| Industry | Software Development |
| Company size | 51-200 employees |
| Headquarters | San Francisco, California |
| Organization type | Privately Held |
| Year founded | 2023 |
| Open jobs on Jobsy | 1,626 |
| View page |
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: Gravitation, Cosmology and Astrophysics Physicist (PhD)
Type: Contract
Compensation: $80–$110/hour
Location: Remote
Duration: 8 to 10 weeks
Commitment: 10 hours/week
Role Responsibilities
- Evaluate AI model training and improve model outputs in research-level physics challenges.
- Develop complex physics problems and solutions in your subfield for AI model evaluation.
- Review completed work and provide structured feedback to enhance training data quality.
- Collaborate with AI research teams to ensure precision and rigor in model reasoning.
- Work independently and asynchronously to meet deadlines and improve AI model performance.
Qualifications
Must-Have
- PhD in gravitation, cosmology, astroparticle physics, or a closely related field.
- Published work on specific phenomena such as torsion, Nieh-Yan, or Chern-Simons terms.
- Verifiable publication record with arXiv IDs or DOIs.
- Proficiency in LaTeX, Python, SymPy, and Jupyter.
- English at B2 or above, including written reasoning.
Preferred
- Familiarity with an agentic coding extension in VS Code.
Application Process (Takes 20–30 mins to complete)
- Apply and complete the attached form with basic information and research experience.
- Provide arXiv ID or DOI of your own paper for each selected area.
- We verify your papers and authorship against the public record.
- Onboarding or a short live alignment call to agree on the area and assignment.
- A brief 30 to 45 minute assessment may be added if needed.
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.
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