Parametric Mechanical CAD Specialist

About OpenTrain

OpenTrain is the #1 platform for finding and building careers in AI training and data labeling. We connect skilled professionals with cutting-edge projects, help them build a strong profile, and make it easier to grow long-term experience in the field.

• Remote contractor opportunity available worldwide
• Part-time schedule of 20+ hours per week
• Hourly pay range of $40–$100 USD

About AI Training Work

AI training is the human side of building artificial intelligence. Specialists prepare and review structured examples so AI systems can better understand technical information, evaluate outputs, and follow real-world design standards.

In this role, your mechanical CAD knowledge will support training data creation and technical model review. Prior AI training experience is not required; strong practical CAD expertise is the key qualification.

• Work on projects that help shape how advanced AI systems perform
• Apply real-world technical judgment to structured training data
• Build experience in a fast-growing, flexible area of tech

The Role

OpenTrain is seeking a Parametric Mechanical CAD Specialist to support AI training work focused on mechanical CAD model review. You will work with parametric 3D CAD models of mechanical parts and assemblies, create structured training data, review technical outputs, and provide clear written feedback.

• Employment type: Contractor and part-time
• Experience level: Entry level
• Language: Fluent English
• Work location: Worldwide
• Time requirement: 20+ hours per week

What You’ll Do

You will create and review accurate, reusable CAD models while translating design intent into clear, structured data. The work requires careful attention to detail, consistent use of guidelines, and the ability to explain technical decisions clearly in writing and verbally.

• Create fully parametric 3D CAD models from written briefs
• Build robust feature trees and apply precise constraints
• Edit and update existing models to meet technical requirements
• Document model changes clearly
• Audit models for dimensional accuracy, tolerance application, and manufacturability
• Review designs across injection molding, sheet metal, CNC machining, and casting or forging
• Apply design-for-manufacturing principles
• Translate design intent into clear, structured CAD data
• Communicate technical judgments and project updates in writing and verbally

Requirements

You should have relevant professional or academic expertise in mechanical CAD modeling and assembly-level design. The role calls for strong dimensional and manufacturability judgment, practical knowledge of GD&T, and the ability to follow detailed guidelines consistently.

• Four or more years of hands-on experience with SolidWorks, FreeCAD, Fusion 360, Autodesk Inventor, or a comparable parametric CAD platform
• Practical GD&T experience using ASME Y14.5 or an equivalent standard
• Experience creating or reviewing mechanical parts and assemblies
• Experience applying design-for-manufacturing principles across at least two manufacturing methods
• Strong written technical communication
• Ability to build robust, reusable feature trees and structured CAD data
• Careful attention to detail and consistent guideline adherence
• FreeCAD familiarity or transferable parametric CAD expertise

Preferred Experience

The following experience is advantageous but is not listed as required: reverse engineering, scan-to-CAD, point-cloud conversion, or CAD workflow automation.

• Reverse engineering
• Scan-to-CAD workflows
• Point-cloud conversion
• CAD workflow automation using Python, iLogic, or VBA

Why Work With OpenTrain

OpenTrain gives freelancers one place to manage AI training opportunities and build a unified portfolio of specialized work. A stronger profile can help you showcase credible experience, discover projects aligned with your skills, and develop a lasting career in AI training and data labeling.

• Create a free OpenTrain account
• Showcase specialized CAD and technical review experience
• Find flexible AI training work in one place
• Build a portfolio around cutting-edge AI development