CNC Machining Expert

AI Training & Evaluation • Independent Contractor • Remote • Weekly Payouts

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About the role

We're building a high-quality evaluation dataset for CNC manufacturing and are looking for experienced CNC machinists to help author and validate grading rubrics for CNC machining work. You'll bring real production-floor judgment to determine whether a machining approach would be approved or rejected for a production run, and clearly explain your reasoning.

What you'll do

• Contribute to text-only, objective, verifiable rubrics for grading CNC machining solutions across provided CAD models and machining context (stock, machine, tooling).
• Write clear verification rationale for each criterion.
• Review sample solutions and explain pass/fail outcomes.

Minimum requirements

• 5+ years of hands-on CNC machining experience.
• Strong production judgment, able to tell what would and wouldn't run safely on a real machine.
• Written English fluency (all deliverables are text-based).

Preferred

• Experience with hobbyist machines (Makera Carvera) and Haas machines (VF-2).

Details

The CNC Machining Expert role is a remote contract position. It suits experienced professionals who want flexible, project-based AI work reviewed on a rolling basis. You collaborate directly with client teams on real deliverables that help train and evaluate next-generation AI systems, with no long-term commitment required.

• Pay: $120 to $175 per hour (part-time)
• Commitment: 40 hours per week • remote
• Eligible locations: United States
• Platform: Mercor (weekly payouts via Stripe or Wise)

Submit your application via the link below. Qualified candidates move through Mercor's short AI interview and selection process. Projects can be extended, shortened, or concluded early depending on needs and performance.