Cincinnatus is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for full-time and long-term contingent roles. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives. Roles hired through Cincinnatus are not project-based or freelance engagements. They are structured, role-based positions that typically involve full-time or fixed-term commitments, close collaboration with a client's internal teams, and integration into standard enterprise workflows. Cincinnatus is a legal entity separate from Mercor. While opportunities may be discovered through Mercor's platform, employment, onboarding, payroll, and benefits for these roles are administered by Cincinnatus. Equal Employment Opportunity Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic. Cincinnatus is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans throughout the job application process.
Physics Specialist
Location
United States + 43 moreAll locations: United States, United Kingdom, Germany, France, Estonia, Portugal, Hungary, Poland, Ukraine, Romania, Bulgaria, Czech Republic, Slovakia, Belarus, Moldova, Republic Of, Sweden, Greece, Belgium, Italy, Ireland, Switzerland, Netherlands, Finland, Malta, Denmark, Lithuania, Croatia, Spain, Austria, Bosnia And Herzegovina, Iceland, Luxembourg, Macedonia, The Former Yugoslav Republic Of, Montenegro, Norway, Serbia, Slovenia, Albania, Cyprus, Latvia, Monaco, Canada
Posted
2 days ago
Salary
$73 / hour
Seniority
Mid Level
Job Description
Role Description
- Write and refine prompts to guide model behavior in physics contexts.
- Evaluate LLM-generated responses to physics-related queries for conceptual accuracy and reasoning quality.
- Conduct fact-checking using authoritative public sources and domain knowledge.
- Annotate model responses by identifying strengths and areas of improvement.
- Assess clarity, structure, and appropriateness of explanations for different audiences.
- Apply consistent evaluation standards by following clear taxonomies and benchmarks.
Qualifications
- Must-Have:
- PhD in Physics or closely related field.
- Deep expertise in Classical Mechanics & Dynamics, Electromagnetism, Thermodynamics, Quantum Physics, or Relativity.
- Significant experience using large language models (LLMs).
- Excellent writing skills and ability to explain complex physics concepts.
- Strong attention to detail and experience reviewing technical writing.
- Preferred:
- Experience with RLHF, model evaluation, or data annotation work.
- Experience teaching or explaining physics concepts to non-experts.
- Familiarity with evaluation rubrics or structured review frameworks.
Requirements
- Full-time or Part-time Contract Work
- Compensation: $73/hour
- Location: USA, UK, Canada, EU
Company Description
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.
Job Requirements
- Must-Have:
- PhD in Physics or closely related field.
- Deep expertise in Classical Mechanics & Dynamics, Electromagnetism, Thermodynamics, Quantum Physics, or Relativity.
- Significant experience using large language models (LLMs).
- Excellent writing skills and ability to explain complex physics concepts.
- Strong attention to detail and experience reviewing technical writing.
- Preferred:
- Experience with RLHF, model evaluation, or data annotation work.
- Experience teaching or explaining physics concepts to non-experts.
- Familiarity with evaluation rubrics or structured review frameworks.
- Full-time or Part-time Contract Work
- Compensation: $73/hour
- Location: USA, UK, Canada, EU
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