Use expert CAD and mechanical design knowledge to evaluate AI-generated engineering responses, solve advanced design problems, and improve AI reasoning. This remote contract offers flexible part-time work at $60-$130 per hour.
Generative AI & RLHF
100% Remote Hourly · $60–$130/hr
$60–$130/hr
Compensation
Worldwide
Eligibility
Entry
Experience
Jul 30, 2026
Posted
Open worldwide
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As an OpenTrain contractor, you can turn specialized engineering knowledge into experience helping improve advanced AI systems while building a lasting portfolio of work.
About AI Training Work
AI training is the human side of building artificial intelligence. People with real-world expertise evaluate model outputs, solve challenging problems, and provide clear feedback so AI systems can produce more accurate and useful results.
In this role, your mechanical design knowledge will help models improve their technical reasoning across CAD, engineering drawings, manufacturing considerations, and production design decisions.
The Role
OpenTrain is seeking a CAD and Mechanical Design AI Training Expert for work focused on mechanical design and CAD AI training. You will use advanced mechanical design problems and AI-generated technical responses to help models learn from structured human expertise, careful evaluation, and clear written feedback.
This is remote contractor work estimated at about 20 hours per week for 1 to 3 months, with flexible scheduling. The role is listed as entry level, but the required qualifications include at least 5 years of production design experience.
Contractor and part-time opportunity
Worldwide remote work
Estimated commitment of 20+ hours per week
Project duration of approximately 1 to 3 months
Compensation of $60-$130 per hour
Estimated project earnings of $9,600-$20,800 based on the stated schedule and duration
What You'll Do
You will evaluate and solve advanced mechanical design and CAD problems, then review AI-generated technical responses for correctness, accuracy, and engineering quality. The work combines practical production judgment with clear explanations that help refine AI reasoning.
You will collaborate remotely with a distributed team of experts and project participants while documenting feedback and communicating your conclusions in writing and verbally.
Evaluate part and assembly design, GD&T, tolerance stack-up, and DFM problems
Assess AI-generated technical responses for accuracy and engineering quality
Apply engineering judgment to production design scenarios and theoretical questions
Analyze problems using tolerance stack-up, ASME Y14.5 GD&T, and design-for-manufacturability and assembly review
Contribute mechanical design and CAD expertise to model improvements
Document feedback and explain technical conclusions clearly
Support AI learning and performance through structured review
Required Qualifications
This position requires strong real-world knowledge of mechanical design and CAD. Prior AI training experience is not required unless stated elsewhere on the job page; subject-matter expertise is the central qualification.
Candidates should have a BS or MS in Mechanical Engineering, Aerospace, or Industrial Design, along with substantial production design experience. CSWP or CSWE certification is a plus.
At least 5 years of production design experience
Expert knowledge of parametric CAD modeling
Expert knowledge of GD&T in accordance with ASME Y14.5
Expert knowledge of tolerance stack-up analysis
Experience with DFM and drawing release
Ability to take designs from concept through detail drawings and production release
Professional English proficiency
Exceptional written and verbal communication skills
Preferred Experience
Additional familiarity with manufacturing processes, engineering standards, and professional CAD or product lifecycle systems will strengthen your application.
Manufacturing process knowledge covering machining, sheet metal, injection molding, or casting
Familiarity with ASME Y14.5 and B89 standards
Experience with SolidWorks, Creo, NX, CATIA, or Inventor
Experience with PLM or PDM systems
CSWP or CSWE certification
Why Build an AI Training Career With OpenTrain
AI training is a fast-growing area of technical work, and specialists directly influence how state-of-the-art AI systems understand and respond to complex engineering questions. Remote, flexible projects can fit around other professional commitments while helping you develop experience in an emerging field.
OpenTrain gives you a place to manage opportunities, show credible experience, discover projects aligned with your skills, and build a durable portfolio in AI training and data labeling.
Work remotely with a flexible schedule
Apply specialized mechanical engineering expertise to cutting-edge AI
Build experience in AI evaluation and human feedback
Develop an OpenTrain profile that showcases your project history
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