Physics Expert

We are looking for physicists to help train and evaluate AI models on physics content. You will analyse physics documents, create and review problems, validate analytical solutions and correct model errors in physical reasoning.

Key Responsibilities

• Read and summarise physics papers and technical documents.
• Write and review problems across a range of physics topics.
• Pull out key data, carry out detailed calculations and check analytical solutions.
• Find and correct errors in AI-generated physical reasoning, units and arithmetic.
• Write rubrics and reference solutions.
• Give structured written feedback on model outputs.
• Follow project guidelines, take part in calibration and review sessions, and incorporate feedback to keep quality consistent.

Required Qualifications

• Advanced degree (MSc or PhD) in physics or a related discipline.
• 2+ years of professional experience in academia, a laboratory or industry.
• Broad command of core physics (classical mechanics, electromagnetism, quantum mechanics, thermodynamics).
• Excellent written English.
• Reliable, detail-oriented, and able to work independently and meet deadlines in a remote setting.

Preferred Qualifications

• Experience with AI, EdTech or educational content creation.
• Publications or peer-review experience.
• Experience with simulation or data-analysis tools.

Legal and Compliance Notice

• All content you submit must be lawful, and you must have the right to share it.
• Do not submit confidential or proprietary material belonging to an employer, client or third party, or personal data without a lawful basis.
• Rex may verify identity, credentials, ownership and licensing; may reject or remove any submission; and may report unlawful submissions to the relevant authorities.
• Engagement and payment are subject to successful verification and to applicable sanctions, export-control, tax and employment laws.
• The contractor agreement will set out ownership and licence terms for the work you deliver (to be confirmed by Rex Legal).

Compensation

USD $50–80 per hour, adjusted by country of residence.