Mechanical CAD Assembly Expert, Part-Time AI Training - Remote (Canada)

• $40–$80 per hour

• 100% remote

• Part-time

• Fully flexible schedule

Work on the cutting edge of AI engineering tools, on your own schedule, and get paid for the mechanical design expertise you already have.

AI systems learn from examples reviewed by engineers. The teams building them need mechanical engineers who can create realistic questions about assemblies and engineering drawings, explain how components fit and function together, and write the answer an experienced engineer would give. Your judgment helps shape the next generation of AI models. This is remote, part-time contractor work applying your mechanical CAD expertise to AI review.

What you'll do

• Review FreeCAD-format files showing assemblies made up of multiple parts

• Interpret component relationships and explain the design intent of an assembly

• Develop technical questions that test how an assembly works, why it was designed that way, and whether its dimensions are appropriate

• Provide clear, objective answers grounded in accepted engineering standards

Why this is worth your time

• Build practical AI evaluation skills while earning $40–$80 an hour reviewing mechanical assemblies

• Work on AI systems that read mechanical assemblies, testing whether they follow component relationships and design intent

• Build practical experience applying your mechanical design judgment to AI review of assemblies and engineering drawings

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

Who this is for

• A background covering mechanical, aerospace, or industrial design

• Strong applied knowledge of CAD and experience reading complex assemblies and engineering drawings, using tools such as FreeCAD, SolidWorks, CATIA or Autodesk Inventor

• Fluent English, strong technical writing, analytical thinking and close attention to detail and objective technical accuracy

• Able to work independently, manage your own deliverables and communicate clearly while working remotely

• Prior AI training work is not required.

Pay and details

• $40–$80 per hour, paid hourly as an independent contractor

• Part-time, flexible schedule; fully remote, Canada

1. Apply on OpenTrain (upload your resume): https://app.opentrain.ai/api/out/cmtxgl55w000u0agm7rbi4pai?ch=saplic&sub=saplic-cmtxgl55w-ca-2026-10

2. Complete a short application on the hiring platform.

3. If shortlisted, take a short AI interview.

Ready to put your mechanical engineering expertise to work on 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.