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Mechanical Assembly CAD AI Training Expert

Review FreeCAD-format mechanical assemblies and create precise question-and-answer sets for AI training. This part-time contractor role pays $40 to $80 per hour and requires strong mechanical CAD knowledge.

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How the AI interview works

  1. Apply here on OpenTrain. You create a free account, and we send you to the hiring platform.
  2. Complete your application on the hiring platform.
  3. The next step is a short AI interview (technical roles include a coding challenge). Passing it is how you qualify for paid tasks, so take it soon after you are invited.

What to expect

  • It is a conversational interview with an AI recruiter.
  • You can take it any time, from anywhere.
  • It asks open-ended technical questions based on the role, and scenario questions on how you think, solve problems and communicate.
  • You see right away whether you meet the certification criteria. If you do not, you can ask for feedback.
OpenTrain AI

General Annotation

Remote Hourly · $40–$80/hr

$40–$80/hr

Compensation

Contract, part-time

Engagement

Remote

Location

Sep 11, 2026

Posted

Open in 52 countries

Canada
+ more
  • Algeria
  • Argentina
  • Austria
  • Bahrain
  • Bangladesh
  • Belgium
  • Brazil
  • Canada
  • Chile
  • Colombia
  • Denmark
  • Egypt
  • France
  • Germany
  • Ghana
  • Greece
  • India
  • Indonesia
  • Italy
  • Japan
  • Jordan
  • Kazakhstan
  • Kenya
  • Kuwait
  • Kyrgyzstan
  • Lebanon
  • Malaysia
  • Mexico
  • Morocco
  • Netherlands
  • Nigeria
  • Oman
  • Pakistan
  • Palestine
  • Peru
  • Philippines
  • Portugal
  • Qatar
  • Saudi Arabia
  • Singapore
  • South Africa
  • Spain
  • Sri Lanka
  • Switzerland
  • Taiwan
  • Thailand
  • Tunisia
  • United Arab Emirates
  • United Kingdom
  • United States
  • Uzbekistan
  • Vietnam

The Work

You will help train AI systems to understand mechanical assemblies and engineering drawings. The work involves reviewing FreeCAD-format files, interpreting how components relate to one another, and explaining the purpose of an assembly design.

You will write technical question-and-answer sets that reflect real engineering practice. Your answers must be clear, objective, accurate, and aligned with engineering standards.

  • Analyze multi-part mechanical assemblies in FreeCAD-format files.
  • Interpret component relationships and assembly design intent.
  • Create questions about mechanical functions, design rationale, and dimensions.
  • Write clear answers based on real-world engineering standards.
  • Review technical details, resolve unclear points through communication, and deliver accurate work within project requirements.

What It Pays and Takes

The work does require strong practical knowledge of mechanical design, CAD, and engineering drawings.

  • Pay: $40 to $80 per hour.
  • Work type: Part-time contract work in a remote setting.
  • Language: Fluent English.
  • Background: Mechanical engineering, aerospace, or industrial design.
  • Experience: Strong applied CAD knowledge and experience interpreting complex assemblies and engineering drawings.
  • Software: FreeCAD is useful; experience with SolidWorks, CATIA, or Autodesk Inventor is also relevant.
  • Skills: Technical writing, analytical thinking, attention to detail, and objective technical accuracy.
  • Work style: Able to work independently, manage deliverables, and communicate effectively remotely.
  • Location: Open to candidates in the United Arab Emirates, Argentina, Austria, Bangladesh, Belgium, Bahrain, Brazil, Canada, Switzerland, Chile, Colombia, Germany, Denmark, Algeria, Egypt, Spain, France, the United Kingdom, Ghana, Greece, Indonesia, India, Italy, Jordan, Japan, Kenya, Kyrgyzstan, Kuwait, Kazakhstan, Lebanon, Sri Lanka, Morocco, and Mexico.
  • Location: Also open to candidates in Malaysia, Nigeria, the Netherlands, Oman, Peru, the Philippines, Pakistan, Palestine, Portugal, Qatar, Saudi Arabia, Singapore, Thailand, Tunisia, Taiwan, the United States, Uzbekistan, Vietnam, and South Africa.

How it works

You apply here in about two minutes and finish on the hiring platform. The next step is a short AI interview (technical roles include a coding challenge). Passing it is how you qualify for paid tasks, so take it soon after you are invited.

About AI Training Work

AI training is the human work behind systems that learn from examples, including technical question-and-answer sets and written explanations. People with strong subject knowledge help make that training accurate, which is why engineering expertise is important in this role.

Requirements

  • Experience: Mid-Senior level
  • Languages: English

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