Use your FreeCAD expertise to create realistic CAD tasks, record reproducible workflows, and evaluate computer-use AI systems. This remote contractor role offers flexible hours and up to $20 per hour in eligible countries.
Generative AI & RLHF
Remote Hourly · $25–$30/hr
$25–$30/hr
Compensation
16 countries
Eligibility
Entry
Experience
Aug 19, 2026
Posted
Open to applicants in
Bangladesh Bhutan Brazil Cambodia India Indonesia Malaysia Nepal Pakistan Singapore Sri Lanka Thailand Philippines United States Timor-Leste Vietnam
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About AI Training Work
AI training is the human side of building artificial intelligence. Contributors create examples, demonstrate workflows, and evaluate model outputs so AI systems can better understand tasks and produce dependable results.
In this role, your mechanical CAD knowledge will help train and assess computer-use AI systems. You will work with realistic FreeCAD scenarios and provide detailed evidence of what successful computer interaction and engineering-quality modeling should look like.
Remote work using a computer, FreeCAD, and screen-recording software
Flexible contractor schedule with a commitment of 20 or more hours per week
Direct contribution to cutting-edge computer-use AI development
The FreeCAD AI Training Specialist Role
OpenTrain is recruiting a FreeCAD Computer-Use AI Training Specialist to create expert demonstrations and objective evaluation data for computer-use AI systems. You will design realistic parametric CAD tasks, complete them in FreeCAD, capture the sequence of actions and interface state, preserve relevant files before and after the work, and define repeatable criteria for evaluating results.
Role type: Remote, part-time contractor
Experience level: Listed as entry level, with substantial FreeCAD expertise required
Time requirement: 20 or more hours per week
Advertised rate: Up to $20 per hour
Working language: English
What You'll Do
You will create production-realistic task briefs and complete the associated FreeCAD work while preserving engineering intent in the model tree. Your work may cover dimensioned drawings, spreadsheet-driven parameters, assemblies, TechDraw sheets, manufacturing preparation, and geometry exchange workflows.
You will also record complete demonstrations, document reproducible workflows in clear English, define dimensional and structural success criteria, and review submitted traces for realism, completeness, step-to-action mapping, and model quality.
Build parts, sketches, assemblies, drawings, and other FreeCAD deliverables
Create tasks from dimensioned drawings and spreadsheet-driven parameters
Capture action sequences and relevant interface states
Preserve files before and after completing tasks
Evaluate traces against objective CAD and workflow rubrics
Keep recordings free of personal information and confidential geometry
Use approved applications and complete work using your own expertise
Requirements
This role requires practical experience in mechanical design, product development, manufacturing engineering, or a comparable CAD-focused role. Genuine proficiency in FreeCAD Sketcher and Part Design is essential, as are strong parametric modeling fundamentals and robust feature-tree practices.
You should be able to troubleshoot constraint-solver failures, broken feature references, and non-manifold or self-intersecting geometry. Clear technical documentation and consistent application of detailed evaluation rubrics are also important.
Genuine proficiency in FreeCAD Sketcher and Part Design
Strong parametric modeling and feature-tree practices
Experience creating mechanical CAD models from dimensioned drawings
Experience with spreadsheet-driven parameters, assemblies, TechDraw, or geometry exchange workflows
Ability to diagnose constraint-solver failures and broken feature references
Ability to identify problematic, non-manifold, or self-intersecting geometry
Working knowledge of at least two additional FreeCAD workbenches
Familiarity with STEP, IGES, BREP, STL, and mesh workflows
B2-level English or higher for clear, reproducible documentation
Ability to run FreeCAD and screen-recording software on Windows 11, Ubuntu X11, or macOS
FreeCAD Workbench Knowledge
In addition to Sketcher and Part Design, you are expected to have working knowledge of at least two additional FreeCAD workbenches. Your experience should support realistic task creation, reliable modeling, and objective verification of completed work.
Assembly
TechDraw
Draft
Spreadsheet
FEM
CAM/Path
Location, Schedule, and Contract Details
This is a remote, flexible-hour contractor role available to candidates in Bangladesh, Bhutan, Cambodia, India, Indonesia, Malaysia, Nepal, Pakistan, Singapore, Sri Lanka, Thailand, the Philippines, Timor-Leste, and Vietnam. The role requires at least 20 hours per week.
Employment type: Contractor and part time
Location: Remote in eligible countries
Minimum time commitment: 20 or more hours weekly
Advertised compensation: Up to $20 per hour
Why Build Your AI Training Career With OpenTrain
OpenTrain helps freelancers manage AI training opportunities in one place instead of rebuilding proof of work for every project. Your profile can showcase credible FreeCAD and evaluation experience, help you find roles aligned with your expertise, and support a long-term portfolio in a fast-growing technology field.
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