Mechanical Hardware Engineer – CAD, Prototyping, Reliability Testing

General Motors

. Create and maintain parametric 3D parts, assemblies, layouts, and drawings in Siemens NX .

Posted 10/22/2026full-timeWarren • Michigan • United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in mechanical design and prototyping, with a strong focus on CAD modeling using Siemens NX, structural analysis, and laboratory testing. Proficient in applying mechanical fundamentals, GD&T, and managing product data within Teamcenter.

Highest-signal resume keywords

Siemens NXTeamcenterStructural FEAMechanical DesignLaboratory Testing

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Parametric 3D ModelingGD&TTolerance AnalysisStructural MechanicsVibration FundamentalsHeat Transfer ConceptsPrototype BuildingTest Fixture DesignData AnalysisDocumentation

Soft Skills

Problem-SolvingCommunicationCollaborationTime ManagementPrioritization

Tools & Technologies

CAD SoftwareTest EquipmentSensorsInstrumentationData Acquisition

Industry Keywords

Mechanical EngineeringAutomotive Reliability StandardsDFM/DFxAdditive ManufacturingSheet-Metal FabricationThermal ManagementEMI/ShieldingDFMEAPFMEA

Tech Stack

Tools & technologies

AssemblyPython

About the role

Key responsibilities & impact

Create and maintain parametric 3D parts, assemblies, layouts, and drawings in Siemens NX
Develop CAD content for electronics housings, brackets, fixtures, interfaces, test hardware, and prototype parts
Perform fit, clearance, interference, stack-up, stiffness, and first-order structural assessments
Prepare and run simple structural FEA analyses and interpret results
Apply mechanical fundamentals, materials knowledge, tolerance analysis, and GD&T
Support physical prototype builds and incorporate build learnings into CAD and drawings
Design, procure, fabricate, and modify test fixtures and test apparatus
Work hands-on in GM prototyping facilities and test laboratories
Support thermal and vibration reliability testing, including setup, instrumentation, inspections, execution, data collection, and documentation
Characterize vibration behavior using sensors and data-acquisition methods
Define test objectives, profiles, instrumentation plans, acceptance criteria, and follow-up actions with test and analysis experts
Analyze and summarize test results and recommend design or test-process improvements
Contribute to DFM/DFx reviews
Maintain product data, BOMs, revisions, releases, and change documentation in Teamcenter
Present CAD updates, prototype status, test results, risks, and recommended actions
Document issues, test conditions, observations, results, and lessons learned
Follow and improve mechanical design, prototyping, laboratory safety, testing, NX modeling, and Teamcenter practices

Requirements

What you’ll need

Bachelor’s degree in Mechanical Engineering or a related engineering discipline
Typically 3–7 years of mechanical design, prototyping, test, or product-development experience
Hands-on experience with Siemens NX for parametric 3D part and assembly modeling, design revisions, and drawing creation
Experience using Teamcenter or a comparable product data-management and change-control system
Experience designing mechanical components and assemblies, interpreting drawings, applying GD&T, and performing basic tolerance and fit assessments
Working knowledge of structural mechanics, materials, loads, stiffness, vibration fundamentals, and basic heat-transfer concepts
Experience with simple structural FEA or similar engineering analysis
Hands-on experience building prototypes, designing or modifying fixtures, or setting up mechanical test hardware
Experience supporting laboratory testing, preferably thermal, vibration, shock, environmental, or mechanical reliability testing
Ability to safely use common shop and laboratory equipment and work directly with hardware, fixtures, sensors, instrumentation, and test equipment
Strong problem-solving, documentation, communication, and collaboration skills
Ability to manage multiple program-support requests, prioritize work, communicate status, and deliver to program timing with limited day-to-day direction
GM immigration-related sponsorship is not provided; candidates must not require sponsorship now or in the future
Preferred: experience with electronics packaging, vibration testing, automotive reliability standards such as GMW3172, fixture and test-apparatus design, additive manufacturing, machining, sheet-metal fabrication, thermal management, EMI/shielding, sealing, DFMEA/PFMEA, MATLAB, Python, Excel, suppliers, prototype shops, manufacturing teams, or external test laboratories

Benefits

Comp & perks

Benefits and Total Rewards resources available from day one
Hybrid work arrangement
Opportunities for professional development and career growth
Inclusive workplace and belonging-focused culture
Reasonable accommodations for applicants with disabilities
Travel requirement under 25%
Non-discriminatory employment practices