Senior Mechanical Engineer

Job description

Job responsibilities

• Design mechanical / electromechanical assemblies for automated package loading, charging, storage infrastructure and other parts of our ground infrastructure roadmap.
• Produce and iterate detailed 3D CAD models, tolerance stacks, GD&T, and manufacturing drawings to support supplier quotes, DFM reviews, and incoming inspection criteria for ground support hardware.
• Design, build, and test quick-turn prototypes and validation fixtures to prove out new automated loading and charging concepts, defining clear release metrics (such as fatigue cycles or environmental ingress thresholds).
• Run hand calculations and FEA structural/thermal analyses on critical assemblies.
• Develop modular, standard ground site systems that can be rapidly, cost-effectively scaled and deployed across highly diverse geographic climates.
• Partner with electrical, software, and operations teams to deliver seamless hardware integration.
• Collaborate with JDM and CM partners and external organizations/teams.
• Work with manufacturing partners to ensure parts are designed for mass production.

Job requirements

• 8+ years of professional hardware engineering experience designing, validating, and commercializing electromechanical systems, mechanisms, automated enclosures, or robotics.
• BS or MS in Mechanical Engineering or equivalent practical experience.
• High proficiency in 3D CAD (SolidWorks preferred), top-level assembly integration, standard GD&T application, tolerance stack-up analysis, and producing manufacturing-ready drawing packages.
• Ability to apply hand calculations and FEA to establish safety and reliability margins for field-critical hardware.
• Strong foundation in DFM/DFA for metals, plastics, and sealed outdoor enclosures suitable for harsh environments.
• Proven experience in designing test fixtures, validating hardware, analyzing field failures, and closing design loops.
• Proven experience guiding contract manufacturers (CMs/JDMs), negotiating DFM changes, and resolving supplier quality/yield issues.
• Strong communication and cross-functional collaboration skills to translate operational requirements into technical specifications and lead complex projects.