PhD Scientist — STEM Expert
Remote - Worldwide
About the role
These tasks are hard to build, and that’s the point. We’re looking for people with genuine depth in their field: the problems where the textbook answer isn’t enough, where the right approach depends on reading the constraints correctly, where a plausible-looking answer is quietly wrong.
Scope of Work
- Design difficult technical problems drawn from your own research area, with realistic constraints and supporting data.
- Provide the correct solution and walk through the reasoning that gets there.
- Define objective criteria for correctness, so another researcher reviewing the work would reach the same verdict.
- Review problems built by other contributors for technical accuracy and soundness of method.
- Flag problems that turn out to be ambiguous or ungradable rather than submitting them.
What you’ll bring
- Completed PhD in a STEM field. This is a hard requirement.
- Hands-on research experience — work you did yourself, not work you read about.
- Wet lab, research lab, or academic experience is strongly preferred.
- Able to explain why an answer is correct clearly enough that another researcher could verify it.
- Publications or a record of research contribution is a strong plus.
- Prior experience on AI training or evaluation projects is a plus, not a requirement.
Benefits
Not provided in the source listing.
Schedule and availability
Flexible — fits alongside your current role.
Contract & Payment Terms
- Pay: $45 - $90/hour
- Commitment: Flexible — fits alongside your current role
- Location: Fully remote
- You’ll need: A completed PhD in a STEM field, plus hands-on research experience
- Your tasks: Build difficult technical problems from your own research and define what makes an answer correct
- Selection process: Apply and complete the screening questions
- Selection process: Complete the AI interview for this role — it’s how your expertise gets in front of the client
- Selection process: Profile review
- Selection process: Onboarding — our Talent Ops team will get you set up
Where you can work
Source location: Remote(Worldwide); Opportunity Snapshot: Fully remote.
The listing states worldwide eligibility. Confirm work authorization with the employer.
Remote does not always mean work from any country. Always check the employer’s location and working-hour requirements.

