CAD Data Generation & Validation Specialist (FreeCAD)

About the Role

We are looking for CAD specialists to produce and validate parametric CAD models for AI training datasets. You will build a library of mechanical parts and assemblies in FreeCAD and run quality checks against engineering standards.

Key Responsibilities

Build, edit and check accurate parametric CAD models in FreeCAD, with attention to geometric precision and good engineering practice.
Create a varied library of mechanical parts, assemblies and features for use in datasets.
Apply GD&T so that models match real-world design standards.
Review CAD data for quality, resolve inconsistencies and keep engineering documentation.
Script repetitive modelling steps where it helps.
Act on feedback and revision requests promptly.
Follow project guidelines, take part in calibration and review sessions, and incorporate feedback to keep quality consistent.

Who We're Looking For

Required Qualifications

2+ years in mechanical design, CAD modelling, manufacturing or industrial engineering.
Strong parametric modelling experience in FreeCAD or equivalent software.
Skill in CAD validation and the application of GD&T to manufacturing scenarios.
Clear written English.
Reliable, detail-oriented, and able to work independently and meet deadlines in a remote setting.

Preferred Qualifications

Python scripting for CAD automation.
Experience with FreeCAD workbenches and assemblies.
Experience contributing to open-source CAD projects.

Rights, Confidentiality and Data Handling

Submit only work that you created yourself or that you have the right to share.
Do not submit material covered by an employer, client or third-party confidentiality agreement, or material you have no right to share.
Do not submit export-controlled, military or defence-related technical data.
Remove credentials, secrets and personal data from anything you submit.
Rex may ask for evidence of ownership or licence, may verify submissions, and may reject or remove any submission.

Legal and Compliance Notice

All content you submit must be lawful, and you must have the right to share it.
Do not submit confidential or proprietary material belonging to an employer, client or third party, or personal data without a lawful basis.
Rex may verify identity, credentials, ownership and licensing; may reject or remove any submission; and may report unlawful submissions to the relevant authorities.
Engagement and payment are subject to successful verification and to applicable sanctions, export-control, tax and employment laws.
The contractor agreement will set out ownership and licence terms for the work you deliver (to be confirmed by Rex Legal).

Compensation

USD $40–100 per hour, adjusted by country of residence.