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

Fully remote

24-MAG

Posted 20 Oct 2026

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**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. 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