$40–100/hr · micro1
A contractor who builds precise parametric CAD models and ensures designs meet manufacturing standards and quality expectations.
What you would do
- Model complex mechanical assemblies in FreeCAD with precision and parametric constraints
- Verify designs meet engineering standards and quality requirements before handoff
- Document assemblies with manufacturing-ready technical drawings
- Automate repetitive modeling tasks using Python for efficiency
- Review designs for accuracy, manufacturability, and tolerance compliance
Who they want
- 2+ years in mechanical or product design with CAD-centric focus
- Expert proficiency in FreeCAD or equivalent parametric systems
- Strong understanding of GD&T, tolerancing, and manufacturing principles
- Ability to create comprehensive technical drawings for production teams
- Strong analytical problem-solving and written communication skills
Main skills
What the interview asks about
1.Assembly design with tight tolerances
Assembly performance depends on correct constraint setup; improper tolerancing causes expensive rework and manufacturing failures.
For example: “You're designing a bearing assembly where the bore must be concentric within 0.02mm. What manufacturing processes would you specify in your CAD model, and how would you document this to the production team?”
2.Design for manufacturing analysis
Manufacturing feasibility issues caught in CAD save thousands; missing DFM considerations result in rejected or reworked parts.
For example: “An injection-molded component requires thin walls with internal ribs. What wall thickness rules and draft angles would you enforce, and how would you communicate these constraints in your model?”
3.Python automation in parametric systems
Automation prevents errors and maintains consistency across variant designs; manual repetition introduces mistakes and wastes time.
For example: “Your project needs 50 bracket variants with different mounting hole patterns. How would you automate this in Python, and what validation would you build into the script?”
4.Technical drawing for production
Manufacturing teams depend on precise, complete drawings; ambiguous documentation causes production delays, rework, and quality issues.
For example: “For a multi-part assembly with hidden features, which views would you prioritize in production drawings? How would you call out assembly sequence and hidden components?”
5.Engineering quality assurance
QA catches costly errors before manufacturing; undetected design flaws can result in product failures in the field.
For example: “Reviewing a junior engineer's pressure vessel model, what checks would you perform to verify it meets specs? What common modeling mistakes would you watch for?”
6.Component integration and assembly
How parts interact determines assembly success; integration problems only appear when real components are manufactured and assembled.
For example: “Two injection-molded parts need a snap connection with 1-2mm retention force. How would you design the snap features, what material properties would you need, and how would you validate the design?”
A task you may get
Model a simple mechanical assembly (mounting bracket or hinged component) in FreeCAD, apply appropriate tolerances and GD&T callouts, then generate complete production-ready technical drawings.
How to prepare
- Study GD&T fundamentals and standard callout conventions per ASME or ISO
- Practice FreeCAD parametric modeling with complex multi-part assemblies
- Review design for manufacturing principles for common materials and processes
- Familiarize yourself with technical drawing standards and manufacturing documentation conventions
The facts
- Pay
- $40–100/hr
- Open to
- Bangladesh, Hong Kong, India, Indonesia, Japan, Kazakhstan, Kyrgyzstan, Malaysia, Pakistan, Philippines, Singapore, Sri Lanka, Taiwan, Thailand, Uzbekistan, Vietnam, Austria, Belarus, Belgium, Denmark, France, Germany, Greece, Italy, Netherlands, Portugal, Russia, Spain, Switzerland, United Kingdom, Argentina, Brazil, Chile, Colombia, Mexico, Peru, Algeria, Bahrain, Egypt, Iraq, Jordan, Kuwait, Lebanon, Libya, Morocco, Oman, Palestine, Qatar, Saudi Arabia, Tunisia, United Arab Emirates, United States, Canada, Nigeria, Kenya, South Africa, Ghana, Ethiopia
- Field
- Software Engineering
- Role type
- Expert
- Posted
- 8/18/2026
- Places left
- 50
We wrote this page from the public micro1 listing. It may be out of date, so read the full posting before you apply.