← all jobs

Theoretical Physicist - Trajectory Expert - AI Trainer

Work from home Full-time role Hiring

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: PhD Physicist — Frontier Reasoning Trajectory Writer Type: Contract Compensation: $80–$120/hour Location: Remote Commitment: 15 hours/week Role Responsibilities

  • Produce "golden trajectories" for hard physics problems with complete, step-by-step solutions.
  • Work in Studio and iterate with a frontier LLM to draft and refine reasoning.
  • Develop trajectories clean enough to use as training data.
  • Evaluate problems screened by a frontier LLM requiring failure at least once.
  • Work independently and asynchronously to meet deadlines.

Qualifications

Must-Have

  • PhD in physics or in the final 1–2 years of a PhD program.
  • Daily-driver fluency in LaTeX and Python.
  • Comfort with iterative LLM workflows.
  • Detail-oriented; comfortable producing publication-grade derivations.

Application Process (Takes 20–30 mins to complete)

  • Submit your application.
  • Complete the short technical assessment.
  • Strong applicants will be invited to a follow-up interview.

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. #hiringmercor

More open positions

English Audio Transcription Specialist

Work from home Full-time role

Senior Client Services Lead (REMOTE) - NOW OFFERING $15K SIGN-ON BONUS!

Work from home Full-time role

Applications Project Manager

Work from home Full-time role

President, US (m/f/d)

Work from home Full-time role

Part-time – Hiring

Work from home Full-time role

Senior Data Engineer

Work from home Full-time role

League Community & Club Engagement Sr. Manager

Work from home Full-time role

Operations Systems Analyst (Remote)

Work from home Full-time role

Remote Customer Service Associate – Digital Client Support Specialist (Work From Home, Houston-Based)

Work from home Full-time role

Staff DevOps Engineer

Work from home Full-time role

Cyber Security Engineer (Compliance, Cloud Security & IT Security)

Work from home Full-time role

Sr. Delivery Acceleration AI Specialist

Work from home Full-time role

Bilingual Spanish Remote Customer Service Representative – Full‑Time Insurance Enrollment & Support Specialist at careerzynith

Work from home Full-time role

Human Services Clinician II

Work from home Full-time role

Platform Expert, Capabilities

Work from home Full-time role

[Remote] Freelance Legal Transcriber - Global

Work from home Full-time role

Agricultural Sales Representative

Work from home Full-time role

Customer Service Rep Remote Appointment Setter Independent Contractor

Work from home Full-time role

Senior Talent Acquisition Partner - GTM

Work from home Full-time role

Home Based Part Time Chat Support (Remote / Non-phone)

Work from home Full-time role

Collaborating Psychiatrist

Work from home Full-time role