Analytical & Physical Chemist

$50/hr

rate as listed

Workload: ~15h/week
Engagement: Project-based
Location: Worldwide
Field: Sciences

Create research-level chemistry problems grounded in raw measurements from titrations, spectroscopy, calorimetry, electrochemistry and kinetics. This is remote, task-based contract work for chemists who can analyze experimental data and document defensible results.

The work

You will turn realistic analytical or physical chemistry measurements into research-level problems used to test and train AI models. Day-to-day work may involve framing a problem around raw spectra, titration curves, calorimetry traces, electrochemical measurements or kinetic runs, carrying out the analysis, and documenting the reasoning and expected result clearly enough for independent review.

What the platform screens for

AfterQuery looks for evidence that you have worked directly with your own laboratory data rather than only performing synthesis or purely computational research. Working knowledge of Python for fitting and analyzing measurements is required. A Master's or PhD in chemistry with substantial bench time is preferred, while method validation under ICH or ISO 17025, measurement-uncertainty budgets, QC laboratory work, and fitting kinetic or thermodynamic models are additional positive signals.

Contract logistics

The work is fully remote, asynchronous and organized by task, with no fixed weekly schedule. Tasks are described as taking about six hours, and contractors choose how many to accept based on their availability. You must be able to work as an independent contractor without visa sponsorship, and students on F-1 visas, including OPT or CPT, are not eligible. Accepted experts complete standard identity and background verification.

Pay band: $50/hr

What they look for

Analysis of raw analytical or physical chemistry measurements
Working knowledge of Python for experimental-data fitting and analysis
Hands-on laboratory experience with techniques such as titration, spectroscopy, calorimetry, electrochemistry or kinetics
Research-level chemistry problem design and solution validation
Clear technical writing with reproducible calculations and documented assumptions
Independent management of asynchronous, task-based work

Included with this listing

Interview prep — 10 questions

Matched to what this platform's screening actually measures. Answer each out loud in 60–90 seconds: claim → concrete example → implication.

What it tests: This tests whether your experience covers the full path from bench measurement through preprocessing, modeling, uncertainty assessment and interpretation, rather than only receiving finalized values from someone else.
A strong answer: Choose one concrete experiment and identify the instrument or method, the raw output, the transformations or corrections applied, the final model or calculation, and how you checked the result. Make your own contribution explicit.
Where people lose it: Candidates lose points by naming techniques without explaining what the raw files contained or what they personally did between collection and the reported value.

Summary, eligibility guidance and screening preparation are prepared by Sidequest from the platform's posting. Check the source listing before applying.