Job Description

OpenTrain AI is hiring for this role.

• $40–$90 per hour

• 100% remote

• Part-time

• About 15–20 hours a week, you choose when

Use your mechanical design expertise to evaluate how AI systems understand complex CAD assemblies, on a schedule you choose.

Help evaluate AI systems on mechanical design by studying complex CAD assemblies, creating difficult technical questions, checking answers against models, and explaining the reasoning clearly.

What you'll do

• Review multi-part CAD assemblies to identify the design intent, key constraints, major decisions, and ways the design could fail

• Build difficult technical questions from CAD models, then check the answers against the models for defensibility

• Review AI-generated mechanical reasoning and identify conclusions that lack accuracy, completeness, clarity, or support

• Refine unclear questions, recommend focused