Scientific Physics Labeling Expert

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Mercor is seeking PhD holders, doctoral candidates, and outstanding Master’s graduates in physics and related disciplines to join a high-impact AI research initiative in partnership with a leading artificial intelligence lab. This position focuses on evaluating and advancing large language models (LLMs) by applying deep expertise in theoretical and applied physics to assess model reasoning, accuracy, and depth across advanced physical science domains.

• Electromagnetism and Photonics
• Thermodynamics
• Optics and Acoustics
• Theoretical Optics
• Theoretical Mechanics
• Statistical Mechanics
• Atomic and Molecular Physics
• Solid State Physics
• Semiconductor Physics
• Fluid Physics
• Astrophysics and Cosmology
• Biophysics
• Electrical Engineering
• Mechanical Engineering
• Control Theory and Control Engineering

• Evaluate scientific correctness, conceptual rigor, and depth of LLM-generated responses across physics and engineering topics.
• Review outputs involving mathematical modeling, experimental methods, and theoretical frameworks in physics.
• Identify factual errors, reasoning flaws, and conceptual misunderstandings in model outputs.
• Benchmark model performance on advanced physics and applied engineering problems.
• Work independently and asynchronously using proprietary evaluation tools.

• PhD (or PhD candidate) in Physics, Applied Physics, Electrical or Mechanical Engineering, or a closely related field.
• Strong command of graduate-level physics and mathematical reasoning.
• Excellent written communication and analytical abilities.
• Ability to work independently in a remote, asynchronous setting.
• Proficiency in Python for scientific analysis or model evaluation preferred.

• Part-time (30 hours/week)
• Remote and asynchronous work environment
• Flexible schedule to accommodate global contributors

• Contractor position via Mercor
• $50–$60/hour, depending on expertise and domain depth
• Weekly payments through Stripe Connect

Mercor is a San Francisco-based company connecting top professionals with leading AI initiatives. Investors include Benchmark, General Catalyst, Adam D’Angelo, Larry Summers, and Jack Dorsey.