FreeCAD Manufacturing Design Engineer

About OpenTrain

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About AI Training Work

AI training is the human side of building artificial intelligence. Specialists prepare examples, review technical outputs, and create reliable reference materials that help AI models produce more accurate and useful results.

This role applies mechanical design and manufacturing expertise to technical examples. Your CAD models, drawings, quality reviews, and assembly instructions can help represent real-world engineering and manufacturability standards in AI training data.

• Remote work that can fit around other professional or personal commitments
• A chance to apply specialized engineering knowledge to cutting-edge AI development
• Portfolio-building experience in a rapidly growing AI training industry

The Role

OpenTrain is recruiting a FreeCAD Manufacturing Design Engineer to create production-ready mechanical CAD models and engineering documentation that support AI training. You will work with parametric components, assemblies, drawings, and assembly instructions while applying practical manufacturing expertise.

This is a remote contractor engagement. The role requires approximately 15 to 20 hours per week, with the structured opportunity details indicating a commitment of 20 or more hours per week. The target rate is $40 to $100 per hour.

• Engagement: Contractor and part time
• Location: Worldwide and remote
• Language: English
• Target hourly rate: $40 to $100
• Workload: Approximately 15 to 20 hours per week

What You'll Do

You will create and refine detailed parametric CAD work, prepare manufacturing documentation, and review technical outputs for accuracy and production readiness. You will also incorporate feedback into models and supporting materials.

• Create and revise detailed parametric 3D CAD models of mechanical parts and assemblies using FreeCAD or a comparable platform
• Produce engineering drawings suitable for manufacturing handoff, including GD&T and tolerance stack-ups
• Design components for sheet metal fabrication, CNC machining, plastics, and injection molding
• Review CAD models for accuracy, manufacturability, and production readiness
• Prepare concise technical documentation and assembly instructions for AI model training
• Incorporate technical review feedback into CAD models and supporting documentation

Required Skills and Experience

You should have at least two years of experience designing mechanical components for manufacturing environments and professional expertise with FreeCAD or similar parametric CAD software. Prior AI training experience is not required.

• Professional experience with advanced parametric modeling, assemblies, and drawing generation
• Mechanical component design experience in manufacturing environments
• Knowledge of GD&T, tolerance analysis, tolerance stack-ups, and Design for Manufacturing principles
• Experience producing production-grade CAD models and checking them against real-world manufacturing criteria
• Ability to verify dimensional accuracy, manufacturability, and production readiness
• Ability to create clear engineering drawings, assembly instructions, and technical documentation
• Experience with sheet metal, CNC machining, plastics, or injection molding
• Clear written and verbal communication skills for technical documentation and collaborative review

Who Should Apply

This opportunity is suited to a manufacturing-focused mechanical designer or engineer who can translate practical production requirements into accurate parametric CAD models and concise technical references. It is listed as entry level in the opportunity details, while the role requirements call for at least two years of relevant manufacturing design experience.

You do not need previous AI training experience. Strong FreeCAD or comparable CAD expertise, sound manufacturing judgment, and careful attention to technical detail are the most important foundations for the work.

• Mechanical designers and engineers with hands-on manufacturing design experience
• FreeCAD users comfortable with complex models, assemblies, and drawings
• Professionals who understand tolerances, GD&T, and Design for Manufacturing
• Technical communicators who can document engineering decisions clearly

Build Your AI Training Career With OpenTrain

AI training and data labeling work is expanding beyond general annotation into specialized fields such as engineering, software, medicine, and finance. OpenTrain helps you discover opportunities that align with your expertise and build a lasting record of the work you complete.

Create your free OpenTrain account to develop a profile, show credible experience, find relevant projects, and apply for this remote contractor opportunity.

• Create a free OpenTrain account
• Build a profile around your manufacturing design expertise
• Discover AI training projects that match your technical skills
• Apply through OpenTrain in minutes