Member of Technical Staff, Staff Physicist

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FirstPrinciplesAI Physics Research
Working across Canada, the US, the UK, and expanding globallyFull-TimeStaff
Salary not disclosed
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Job Details

Required Skills
PythonGit

Requirements

  • PhD in Physics, or a closely related field, with postdoctoral-level research maturity.
  • Proven ability to reason at a research level in physics and rigorously critique proofs, derivations, and scientific arguments.
  • Strong scientific programming skills (Python) and experience with research tooling (Git, LaTeX).
  • Clear, precise communicator with a strong ability to translate complex ideas into sharp critiques, guidance, and evaluation frameworks.
  • Comfortable working in a fast-moving, cross-functional environment with researchers and engineers.
  • Mission-driven, with an entrepreneurial mindset and interest in tackling foundational problems in science.

Responsibilities

  • Review and critique the model's reasoning in physics, identifying subtle conceptual errors and invalid assumptions.
  • Provide clear corrections, alternative derivations, and minimal counterexamples to shape what “good” scientific reasoning looks like.
  • Translate domain expertise into actionable improvements for model behaviour, reasoning patterns, and tool usage.
  • Create gold-standard solutions and reference outputs for training and fine-tuning.
  • Rank and evaluate model outputs to improve scientific reasoning through expert feedback loops.
  • Help build and operate our external Collaborators program, coordinating expert review cycles and integrating feedback into training and evaluation.
  • Contribute to high-quality research outputs (benchmarks, datasets, technical reports, preprints) that meet publishable standards.
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