Mechanical CAD Designer – Automotive ECU Packaging

General Motors

. Design ECU housings, brackets, covers, heat sinks, mounting features, and related mechanical components in Siemens NX .

Posted 11/11/2026full-timeWarren • Michigan • United StatesSeniorLeadWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing mechanical components and assemblies for automotive applications, utilizing Siemens NX for 3D modeling and documentation. Proficient in GD&T, tolerance analysis, and collaborating across multidisciplinary teams to support product development and integration.

Highest-signal resume keywords

Siemens NX DesignAutomotive Electronics PackagingGD&T Knowledge3D Modeling and Assembly DocumentationTeam Collaboration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Mechanical DesignTolerance AnalysisDFMDFADFQ3D ModelingBOM ManagementAutomotive ECU DesignThermal Management SolutionsProduction-Ready Documentation

Soft Skills

Strong CommunicationCollaboration Skills

Tools & Technologies

Teamcenter PLM

Industry Keywords

Automotive ComponentsVehicle ArchitectureWiring Harness IntegrationConnector DesignDie-Cast AluminumPlastic Injection MoldingSheet Metal DesignStamped Component DesignEMC ConsiderationsPrototype Builds

Tech Stack

Tools & technologies

Assembly

About the role

Key responsibilities & impact

Design ECU housings, brackets, covers, heat sinks, mounting features, and related mechanical components in Siemens NX
Lead vehicle-level packaging studies covering space claims, clearances, mounting, serviceability, harness and connector interfaces, and assembly requirements
Create 3D models, assemblies, 2D drawings, BOMs, and engineering release documentation
Apply GD&T, tolerance analysis, DFM, DFA, and DFQ principles
Collaborate with hardware, electrical, thermal, EMI/EMC, validation, manufacturing, supplier, and vehicle integration teams
Support thermal packaging, structural assessments, prototype builds, validation, root-cause investigations, and production launch activities
Resolve supplier and manufacturing feasibility, tooling, assembly, and build issues
Support engineering changes, design reviews, PLM activities, and continuous product improvement
Integrate ECUs into zonal architectures, centralized compute systems, and connectivity platforms
Maintain BOM structures and engineering release packages

Requirements

What you’ll need

Bachelor's degree in mechanical engineering, Mechanical Engineering Technology, or related field OR 10+ years of CAD mechanical design experience on automotive components
Experience designing mechanical components and assemblies using Siemens NX
Strong understanding of automotive electronics packaging and ECU design
Experience creating production-ready 3D models, detailed drawings, and assembly documentation
Knowledge of GD&T, tolerance analysis, and manufacturing processes
Experience supporting product development from concept through production
Strong communication and collaboration skills
Preferred: Experience designing automotive ECUs, modules, compute platforms, gateways, or connectivity hardware
Preferred: Knowledge of die-cast aluminum, plastic injection molding, sheet metal, and stamped component design
Preferred: Familiarity with thermal management solutions for electronic hardware
Preferred: Experience with automotive EMC considerations
Preferred: Understanding of wiring harness integration, connectors, and vehicle architecture
Preferred: Experience with Teamcenter PLM

Benefits

Comp & perks

Benefits and Total Rewards resources available through General Motors
Opportunities for professional development and career growth
Inclusive workplace focused on belonging
Reasonable accommodations for applicants with disabilities