$45–55/hr · Mercor · Hourly, 40 hours a week
A mechanical or product designer with hands-on Inventor Professional expertise who helps train AI systems to recognize and understand 3D design models.
What you would do
- Use Inventor Professional to create or demonstrate 3D mechanical models and assemblies
- Capture high-resolution screenshots showing design workflows, components, and modeling techniques
- Explain design reasoning and engineering decisions behind specific model features
- Demonstrate how component relationships, constraints, and assemblies function in real projects
- Provide feedback on whether AI systems correctly interpret design intent and engineering concepts
Who they want
- Hands-on experience with Inventor Professional or similar parametric CAD software on Windows
- Background in mechanical engineering, product design, or manufacturing-focused roles
- Strong understanding of design workflows, tolerances, and assembly principles
- Ability to articulate engineering reasoning and design decision-making
- High-resolution display capable of capturing screenshots over 2.5 megapixels
Main skills
What the interview asks about
1.Design model explanation
AI systems need to understand not just what shapes are present, but why engineers structure assemblies and components the way they do.
For example: “Show a multipart assembly with subassemblies, constraints, and motion. Explain how the component relationships ensure correct assembly sequence and why certain parts are grouped as they are.”
2.Constraint and motion reasoning
Mechanical models rely heavily on constraints; an AI that misses why constraints exist cannot understand the design intent.
For example: “Describe a product where you used coincident, parallel, and distance constraints to control motion. What would happen if the AI removed one constraint? Why did you add it?”
3.Real-world design tradeoffs
Engineers constantly balance manufacturability, cost, performance, and assembly; AI needs exposure to these decisions, not just idealized examples.
For example: “Walk through a design change you made because of manufacturing cost or assembly difficulty, not engineering performance. How did you modify the model and why?”
4.Design pattern recognition
Experienced designers see patterns in problems; teaching AI to recognize common solutions requires you to articulate what you notice automatically.
For example: “Describe three different products you've designed that solved similar mechanical problems differently. What problem was each solving, and why did different designs work for each situation?”
5.CAD workflow efficiency
How you approach modeling reveals assumptions about design order, dependencies, and problem-solving that AI needs to learn.
For example: “Walk through the exact order you'd build a complex assembly from scratch. Why start with certain parts? At what point do you add constraints versus leaving them for later?”
A task you may get
Create a sample 3D assembly in Inventor showing a multi-component product with subassemblies and constraints. Capture screenshots and explain the design rationale, component relationships, and how the assembly would be built in manufacturing.
How to prepare
- Review a recent project you designed, noting key decisions and why certain approaches were chosen
- Practice explaining design tradeoffs in simple terms to someone unfamiliar with mechanical engineering
- Prepare examples showing common design patterns from your experience and their variations
- Test your display setup to confirm you can capture high-resolution screenshots of Inventor models
The facts
- Pay
- $45–55/hr
- Hours
- Hourly, 40 hours a week
- Where
- Remote
- Field
- Other Engineering
- Posted
- 9/13/2026
- Places left
- 30
We wrote this page from the public Mercor listing. It may be out of date, so read the full posting before you apply.