Remote | Senior Mechanical Design Engineer — $40–$90/hour

We are sharing a specialised consulting opportunity for experienced Senior Mechanical Design Engineers with deep expertise in complex multi-part assemblies, parametric CAD, mechanism design, kinematic analysis, GD&T, tolerance judgement, and design review to contribute to advanced AI training and mechanical-engineering evaluation initiatives.

Selected professionals will analyse complex CAD assemblies, formulate challenging engineering questions, validate exact answers from models, review AI-generated mechanical reasoning, and document edge cases with strong technical precision. No prior AI experience is required; advanced mechanical-design expertise is the primary qualification.

Key Responsibilities

Mechanical Assembly Analysis

• Analyse complex multi-part mechanical assemblies
• Identify critical design decisions and engineering constraints
• Evaluate component relationships, interfaces, and assembly intent
• Identify potential failure points requiring expert judgement
• Apply practical mechanical-design reasoning beyond drawing interpretation

Technical Question Development

• Formulate challenging mechanical-design questions from CAD models
• Focus on non-obvious problems requiring senior-level engineering judgement
• Develop questions involving assemblies, mechanisms, tolerances, and constraints
• Avoid trivial or purely visual questions
• Ensure questions are technically meaningful and answerable

CAD Validation & Exact Answer Development

• Validate answers directly against underlying CAD models
• Document exact and defensible engineering conclusions
• Maintain clear traceability between questions and model evidence
• Identify relevant dimensions, constraints, and geometric relationships
• Ensure answers remain precise and technically reproducible

AI Output Review & Mechanical Reasoning

• Review AI-generated responses to mechanical-engineering questions
• Identify breakdowns in design intent or assembly reasoning
• Evaluate mechanism and kinematic interpretation
• Flag incorrect GD&T or tolerance assumptions
• Recommend targeted improvements to technical reasoning quality

Quality Review & Technical Documentation

• Identify ambiguous, trivial, or unanswerable questions
• Refine technical prompts for clarity and precision
• Document edge cases and legitimate sources of disagreement
• Communicate findings through clear professional documentation
• Support consistent quality standards across evaluation workflows

Ideal Profile

• 5+ years of professional mechanical-design experience
• Experience creating and overseeing multi-part assemblies from concept
• Strong ability to make original mechanical-design decisions rather than working only from existing drawings
• Mastery of at least one major parametric CAD platform
• Relevant tools may include SolidWorks, Creo, NX, CATIA, Inventor, Fusion, Onshape, or Solid Edge
• Deep expertise in design intent and assembly reasoning
• Strong mechanism and kinematic analysis capabilities
• Advanced understanding of GD&T and tolerance judgement
• Experience identifying design constraints and failure modes
• Strong technical reasoning across complex mechanical systems
• Experience teaching, mentoring, leading design reviews, or coaching engineering teams
• Exceptional written English communication skills
• Strong ability to document technical reasoning precisely
• Experience in industrial machinery, automation, robotics, automotive, heavy equipment, aerospace, defence, medical devices, consumer products, tooling, or fixture design
• FreeCAD experience is advantageous
• Advanced tolerance analysis or formal design-review leadership is advantageous
• No prior AI-training or model-evaluation experience is required

Engagement Details

• Independent contractor engagement
• Fully remote
• Expected commitment: approximately 15 hours per week
• Compensation: $40–$90/hour
• Work will involve CAD assembly analysis, mechanical-reasoning question development, answer validation, AI-output review, and technical documentation
• Strong parametric CAD expertise is central to this engagement
• Assignments may involve design intent, mechanism analysis, kinematics, GD&T, tolerance assessment, and failure-point identification
• Contributors will be expected to distinguish technically meaningful questions from ambiguous or trivial ones
• Documentation must support clear traceability and reproducibility
• Project scope, CAD models, and engineering scenarios may vary depending on project requirements
• Work must be completed without using confidential, proprietary, export-controlled, classified, client-restricted, or otherwise protected designs, CAD files, drawings, technical data, or documentation belonging to any employer, client, institution, or other third party

About the Platform

This opportunity is available through 24-MAG LLC. We connect experienced professionals with remote consulting opportunities across technical, evaluation, and project-based workstreams.

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