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Mechanical Hardware Engineer – CAD, Prototyping & Reliability Testing
General Motors
USA
Full-time
Mid · 3–7 years experience
Discovered 3 days ago
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Key Skills for This Role
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Responsibilities
- Create and maintain parametric 3D parts, assemblies, layouts, and supporting drawings in Siemens NX for electronics housings, brackets, fixtures, interfaces, and related mechanical components.
- Develop CAD content for program teams, including packaging studies, mounting features, brackets, covers, seals, PCBA interfaces, test hardware, and prototype parts.
- Perform basic mechanical design checks, including fit, clearance, interference, stack-ups, stiffness considerations, and first-order structural assessments.
- Prepare and run simple structural FEA analyses, such as static load, stiffness, mounting-load, and basic modal or vibration screening evaluations; define reasonable assumptions, document inputs, interpret results, and engage analysis specialists when problems exceed the role’s scope.
- Apply mechanical fundamentals, materials knowledge, tolerance analysis, and GD&T to support robust and manufacturable designs.
- Support physical prototype builds using machined, formed, molded, and additive-manufactured parts; review build quality and incorporate build learnings into CAD and drawings.
- Design, detail, procure or fabricate, and modify test fixtures, brackets, adapters, load introduction hardware, instrumentation mounts, and other test apparatus.
- Spend regular hands-on time in GM prototyping facilities and test laboratories to assemble hardware, set up equipment, troubleshoot test issues, and support safe and repeatable test execution.
- Support thermal and vibration reliability testing, including test setup, sample preparation, instrumentation, pre- and post-test inspections, test execution, data collection, and documentation of results.
- Characterize vibration behavior through testing using appropriate sensors and data-acquisition methods; help identify resonances, response amplification, unexpected modes, mounting issues, or other mechanical risks and communicate findings to program teams.
- Work with test and analysis experts to define practical test objectives, profiles, instrumentation plans, acceptance criteria, and follow-up actions for mechanical and environmental reliability testing.
- Analyze and summarize test results, connect physical behavior to CAD and basic analysis predictions, and recommend design or test-process improvements.
- Contribute to DFM/DFx reviews and incorporate feedback into CAD, drawings, fixtures, and prototype build plans to improve manufacturability, quality, cost, and testability.
- Maintain assigned product data in Teamcenter, including structures, BOM content, revisions, releases, and change documentation, with guidance from senior engineers as needed.
- Present CAD updates, prototype status, test results, risks, and recommended actions at design, build, and cross-functional reviews.
- Document issues, test conditions, observations, results, and lessons learned so that decisions are traceable and design changes can be implemented efficiently.
- Follow and help improve CCH mechanical design, prototyping, laboratory safety, testing, NX modeling, and Teamcenter practices.
Qualifications
- Required
- Bachelor’s degree in Mechanical Engineering or a related engineering discipline.
- Typically 3–7 years of mechanical design, prototyping, test, or product-development experience in automotive, electronics, aerospace, industrial equipment, or a similar environment.
- 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.
- Demonstrated ability to design mechanical components and assemblies, interpret drawings, apply GD&T, and perform 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, including preparing models, defining loads and constraints, reviewing results, and identifying when additional expert analysis is required.
- Hands-on experience building prototypes, designing or modifying fixtures, or setting up mechanical test hardware.
- Experience supporting laboratory testing, preferably including thermal, vibration, shock, environmental, or mechanical reliability testing.
- Ability to safely use common shop and laboratory equipment and to 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.
- Prior experience with electronics packaging, ECU housings, central compute hardware, power electronics, computers, or similar electro-mechanical products.
- Experience with vibration testing, modal testing, shaker systems, accelerometers, strain gauges, thermocouples, thermal chambers, or related data-acquisition equipment.
- Familiarity with automotive environmental and reliability test methods, including GMW3172 or comparable industry standards.
- Experience designing fixtures and test apparatus for repeatability, access, load transfer, instrumentation, and safe operation.
- Experience with additive manufacturing, machining, sheet-metal fabrication, or other rapid-prototyping methods.
- Exposure to thermal management, EMI/shielding, sealing, IP protection, vehicle interfaces, or connector interfaces.
- Familiarity with DFMEA/PFMEA, structured problem-solving, root-cause analysis, and design-of-experiments principles.
- Experience using MATLAB, Python, Excel, or similar tools to process and visualize test data.
- Experience working with suppliers, prototype shops, manufacturing teams, or external test laboratories.
- Master’s degree in Mechanical Engineering or a related field.
Qualifications
- Preferred
Preferred Qualifications
- Preferred
About General Motors
Automotive10,001+Founded 1908
General Motors is a U.S. automotive company that designs, manufactures, and sells vehicles under brands including Chevrolet, Buick, GMC, and Cadillac. The company operates globally across vehicle engineering, manufacturing, sales, and mobility services.
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