Physics Expert (PhD / Postdoc)

Confidential; United States; Remote; USD 83,000 - 138,000; Part time

Job summary

Zekai seeks a Physics Expert (PhD / Postdoc) for a remote, part-time contractor role (10-15+ hours per week). You will contribute deep scientific knowledge to a high-impact customer project, focusing on training next-generation AI systems with your domain expertise.

You will solve advanced problems, provide rigorous, well-documented derivations in LaTeX, and perform symbolic or numerical verification using SymPy, Python, and Jupyter.

Qualifications

• PhD in physics or active PhD candidacy.
• Strong publication record or evidence of ongoing research in relevant subfields.
• Proficient in LaTeX and capable of presenting rigorous mathematical results.

Responsibilities

• Solve advanced physics problems from your specialization with rigorous derivations.
• Produce technically precise solutions with all assumptions and results documented in LaTeX.
• Use SymPy, Python, and Jupyter for symbolic or numerical checks and reproducible workflows.

Skills

Analytical thinking

Technical writing

Problem solving

LaTeX proficiency

Education

PhD in Physics

PhD candidacy (active)

Tools

SymPy

Python

Jupyter

Job description

Role Title: Physics Expert (PhD / Postdoc)

Role Type: Contractor

Location: Remote (Worldwide)

Schedule: 10-15+ hours a week, Fully Flexible (Can accommodate working after hours/weekends)

our partner is engaging Physics Experts (PhD / Postdoc) to contribute deep scientific knowledge and problem-solving skills to a high-impact customer project. In this role, you'll apply your expertise to help train next-generation AI systems.

Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.

Scope of Work

• Solve advanced physics problems from your specialization, delivering rigorous, well-documented derivations and analyses.
• Produce technically precise, clearly written solutions, detailing all assumptions, approximations, and final results using LaTeX mathematical notation.
• Utilize SymPy, Python, and Jupyter for symbolic or numerical verification and clear computational workflows where relevant.
• Identify and articulate subtleties in problem statements, including special cases, boundary conditions, and dimensional consistency.
• Flag ambiguities in project materials, proposing well-reasoned interpretations and clarifications as needed.
• Iterate on submitted solutions in response to feedback from project reviewers, ensuring corrections are cleanly integrated.
• Uphold rigorous standards in documentation and reproducibility consistent with professional research practice.

Preferred Qualifications

• PhD in physics or advanced-stage PhD candidacy, with active research experience in a relevant subfield.
• Research expertise in one or more of: High Energy Physics, Mathematical Physics, Biophysics, Statistical Physics, Condensed Matter (including moiré systems, magnetism, PXP/Rydberg), AMO/Quantum Optics, Gravitation, Cosmology, Astrophysics, Quantum Information, or Optical Properties of Materials.
• 2–5 recent representative publications (past ~5 years) in your field, with accessible arXiv or DOI records.
• Proficiency with LaTeX for presenting mathematics, and with SymPy, Python, and Jupyter for computational work; willingness to indicate areas for further support if needed.
• Demonstrated excellence in written technical communication, with a track record of producing clear, precise, and well-argued scientific outputs.
• Strong analytical skills, able to isolate key physical principles and provide nuanced solutions to complex problems.
• Availability to engage with the project consistently over an 8–10 week period (approx. 10 hours/week).

This is a 100% remote contract role, open to applicants worldwide in the countries the employer accepts.