Principal Engineer / Professor, Part-Time AI Problem Review - Remote (United States)

• $85–$185 per hour

• 100% remote

• Part-time

• Fully flexible schedule

Create and review difficult technical problems, write verifiable solutions, and explain how they should be graded.

AI systems need engineering and physical science professionals to test them on difficult technical work. Build realistic technical problems with supporting data and practical constraints, then supply correct solutions with enough reasoning for a peer to check independently. You will also assess problems submitted by other contributors for technical accuracy, confirm that their methods are sound, and identify cases too vague for consistent grading. This is that work, done remotely around your schedule.

What you'll do

• Create technically demanding engineering or physical science problems using realistic constraints and supporting data

• Provide correct solutions with enough working for an expert reviewer to check

• Define objective grading criteria so reviewers reach consistent correctness decisions

• Check submitted problems for technical accuracy and identify cases that cannot be graded reliably

Why this is worth your time

• Get paid $85–$185 an hour

• Apply your technical expertise to demanding engineering and physical science problems

• Contribute alongside your current work

• Fully remote and flexible, no fixed shifts, no commute

Who this is for

• A master's or PhD; your field must be engineering, physics, materials, or closely related

• Own technical work at principal-, staff-, or fellow-level within a major engineering organization; comparable ownership at a national lab also qualifies. Another route is a leading university faculty appointment

• Deep knowledge in at least one specialty within engineering or physical science, plus professional fluency in English

• No AI experience needed.

Pay and details

• $85–$185 per hour, paid hourly as an independent contractor

• Part-time, flexible schedule; fully remote, United States

How to apply

1. Apply on OpenTrain with your resume: https://app.opentrain.ai/api/out/cmvvsxgbn000107jv6hfuiy1s?ch=remotenetwork&sub=remotenetwork-cmvvsxgbn-us-2026-10

2. Complete the application on the hiring platform.

3. If shortlisted, take a short AI interview.

Ready to create and review difficult technical problems for AI training? Apply today.

About OpenTrain AI

OpenTrain AI connects experienced professionals with paid, part-time AI training work: shaping and improving the AI systems that companies are building right now.