Top Mechanical Engineering Jobs in San Francisco Bay Area, CA

The Mechanical Integration Engineer will lead development and support of mass properties tools, manage design guidelines, collaborate across teams, and ensure system-level integration and packaging for aerospace projects.

The Mechanical Design Engineer will lead sustaining engineering, develop next-gen products, manage prototyping, create CAD models, and document designs.

Lead design, prototyping, testing, and optimization of high-volume capital and high-vacuum manufacturing equipment. Manage supplier relationships, integrate mechanical, electrical, and facilities systems, and solve cross-system manufacturing problems. Drive documentation and design for high-volume, low-cost production builds and support installation and alignment of large precision tools.

Lead reliability strategy for mission-critical mechanical and electromechanical systems. Define reliability targets, perform FMEAs, design accelerated life and environmental tests, investigate failures to root cause, set service intervals, and drive cross-functional decisions on hardware readiness and release.

Lead mechanical architect for satellite propulsion hardware, driving CAD design, FEA and thermal analysis, materials selection, prototyping, environmental testing (TVAC), DFM with vendors, and production transition. Define test plans, inspection and assembly procedures, and support supplier evaluation to deliver flight-ready, high-reliability hardware.

Design, build, commission, and continuously improve custom mechanical test equipment for crash, impact, crush, vibration, thermal, and structural testing of batteries and aircraft hardware. Own end-to-end development from requirements to validation, perform structural analyses and FEA, produce CAD and manufacturing documentation, integrate sensors and DAQ, ensure operator safety, and collaborate cross-functionally and with suppliers.

Senior Mechanical Engineer/Project Manager responsible for designing and specifying building mechanical/HVAC systems for life-sciences, pharmaceutical, and critical facilities. Duties include Revit/AutoCAD drawings, load calculations, one-line diagrams, equipment selection, controls sequencing, specifications, coordination with disciplines, client/vendor meetings, RFIs/submittal review, site visits, and managing project deliverables and schedules with limited senior oversight.

Lead Mechanical Engineer to direct HVAC, plumbing, and fire protection design from concept through construction. Oversee deliverables, calculations, equipment selection, code compliance, interdisciplinary coordination, budgeting, site visits, and mentor project teams to ensure quality and schedule adherence.

Own mechanical design for large, field-deployed robotic systems. Perform first-principles engineering, FEA, and prototype builds; lead test campaigns, failure analysis, and iterative hardware improvements while collaborating with electrical, controls, and field teams. Hands-on factory and field work with high ownership and extended hours.

Design, build, and manage mechanical test systems from concept through operation to validate vehicle functionality and reliability. Generate test requirements with product and reliability teams, define edge cases from field data, prioritize test activities, maintain test infrastructure, and provide technical guidance to junior engineers while coordinating across structures, aero, embedded, and software teams.

Lead mechanical and electromechanical validation for the Dropbox package-loading product: define test plans, design and build fixtures and automated rigs, integrate sensors and DAQ, run environmental and life tests, analyze data, drive failure investigations, and partner cross-functionally to ensure reliability and release readiness.

Lead design and analysis of precision electro-mechanical subsystems for a metal 3D printer, produce parts and assemblies, manage BOM/revision control and sourcing, perform rapid prototyping and metrology-based testing, maintain machine tools, and collaborate across mechanical, electrical, materials, and software teams to move designs into manufacturing.

Lead mechanical engineering project delivery from concept through construction administration. Prepare calculations, narratives, drawings, and specifications; oversee equipment selection, interdisciplinary coordination, site visits, and quality management. Build and manage project teams, develop workplans, mentor staff, and maintain standards while cultivating client relationships and ensuring projects meet schedule, budget, codes, and performance goals.

Lead design of mechanical systems for buildings, manage teams, perform HVAC and plumbing calculations, and collaborate with other disciplines.

Design and develop Planted's solar racking system, lead projects from conception to assembly, perform analyses, and create automation tools for solar deployment.

Design and develop machines, robots, and structures as part of the R&D team, leading projects from concept through deployment and collaborating with engineers.

Lead structural analysis for Zipline aircraft: own and validate GFEM/DFEMs, perform rapid hand calculations and FEM studies, support certification and test correlation, lead failure investigations, mentor contributors, and support field/flight tests to improve reliability, mass, and fleet availability.

Lead end-to-end mechanical design, analysis, integration, and validation of precision diagnostic instrumentation for pulsed fusion. Deliver CAD and GD&T drawings, perform FEA (structural and thermal), design optomechanical, motion, and thermal management solutions for vacuum and radiation environments, manage PDM/PLM configuration, drive prototypes to commissioning, and mentor junior engineers.

Design and integrate mechanical systems for sensors, computing, and autonomous hardware on production vehicles. Rapidly prototype, test, and iterate designs; lead assembly, validation, and troubleshooting of retrofitted vehicles; collaborate with hardware, software, and systems teams; and mentor junior engineers while ensuring manufacturability and robust production-ready solutions.

Design and model mechanical systems for data centers, manage project phases, lead BIM coordination, and ensure compliance with standards. Requires PE license and frequent travel.

Design and engineer mechanical/HVAC systems for data centers, commercial, telecom, and education projects. Perform load/energy calculations, equipment selection, code compliance, specifications, construction administration, existing building surveys, QA/QC, and collaborate across disciplines to deliver coordinated project documentation and services.

Lead mechanical system design for new, renovated, and addition projects including HVAC system design, load/energy calculations, equipment selection, specifications, code compliance, construction administration, QA/QC, interdisciplinary coordination, client communication, and mentoring junior engineers.

The role involves designing and building robotic systems, improving simulation fidelity, maintaining hardware infrastructure, and collaborating with a team on physical AI projects.

Lead mechanical system design for high-performance buildings from concept through construction. Ensure code compliance, optimize energy performance, coordinate multidisciplinary teams, perform site investigations, review submittals, mentor junior staff, support proposals, and contribute to practice-wide technical excellence.

The Senior Mechanical Engineer will oversee spacecraft subsystems, perform mechanical design and analysis, mentor junior engineers, and assist in recruitment.