Hackajob is collaborating with a leading client in the AI space and is looking for experienced Physics professionals to contribute to exciting project-based AI opportunities.
PhD Research Fellow — AI Reasoning & Annotation (Mathematics)
Remote | Contract | Immediate start
We're building the frontier of AI reasoning. That requires people who can operate at the frontier of mathematical thought.
We're hiring PhD researchers across all mathematics subdomains to create benchmark-grade problems that challenge the limits of state-of-the-art language models.
What you'll do:
Generate original, graduate-level Q&A problems in your specialist domain — problems with clear, fully-worked step-by-step solutions that expose substantive reasoning failures in advanced AI. This is not prompt engineering. It requires deep mathematical expertise and the ability to author problems that are genuinely novel, non-searchable, and logically airtight.
Who we're looking for:
— PhD (completed or ABD) in Mathematics
— Prior experience in AI data annotation, preferably in STEM or mathematical reasoning workflows
— Demonstrated ability to author original, non-searchable graduate-level problems
— Strong written English; fully-worked proofs and solutions must be unambiguous
All subdomains welcome: pure, applied, and computational.
This is contract work with flexible hours. Output is reviewed for mathematical rigour, problem originality, and the degree to which solutions challenge model reasoning at a structural level.
If your background is in rigorous mathematical research and you want your expertise to directly shape how the next generation of AI reasons — we want to hear from you.
Apply with your CV and a brief note on your area of specialisation.