Analytical & Physical Chemist

Use your hands-on experience in chemistry to write research-level problems for AI models. Remote, flexible contract work. After Query works with leading AI labs to build the expert data that tests and trains AI models. We're looking for analytical and physical chemists who work with raw lab measurements: the titrations, spectra, calorimetry, electrochemistry and kinetics runs you turn into results.

• Working knowledge of Python for fitting and analyzing your own measurements.
• Must be able to work as an independent contractor without visa sponsorship. Students on F-1 visas (including OPT/CPT) are not eligible.
• A Master's or PhD in chemistry with substantial bench time; method validation or QC lab experience is a strong signal.
• Hands‑on work with real data, rather than synthesis‑only organic chemistry or purely computational chemistry.
• Contract and pay: flexible independent‑contractor work: $300 per approved task, about 6 hours each (roughly $50 per hour), with no cap on how many tasks you take on.

All accepted experts undergo standard background and identity verification.