Top Mechanical Engineer Jobs in San Francisco Bay Area, CA

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 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 develop manufacturable hardware for networking products, collaborating across teams to ensure reliable and user-friendly designs.

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

As a Mechanical Engineer, you'll design and test spacecraft parts and systems, perform mechanical analysis, and support team expansion efforts.

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.

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.

Own end-to-end mechanical architecture and detailed design for a customer-facing, unattended package-loading product. Drive requirements, CAD/FEA, GD&T, tolerance stacks, prototyping, validation, production release, supplier qualification, and field-failure investigations to meet reliability, manufacturability, and serviceability targets. Mentor engineers and collaborate across disciplines to reduce downtime and improve fleet uptime.

Lead mechanical and electromechanical validation for Dropbox assemblies: develop test plans, design and build fixtures and automated rigs, instrument systems, run environmental and high-cycle tests, analyze data, investigate failures, correlate lab and field performance, and collaborate with cross-functional teams to verify reliability and readiness for deployment.

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

The Senior Mechanical Design Engineer will design electric powertrain components through the entire product lifecycle, including calculations, CAD design, prototyping, and optimizing manufacturing processes.

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.

Responsible for designing and developing vehicle body structures for an autonomous ATV, ensuring performance across extreme conditions using CAD and FEA tools, and collaborating with team members on integrated vehicle architectures.

Design, prototype, and validate mechanical systems for large autonomous vehicles. Create CAD models and drawings, build and test hardware in-shop, integrate sensors and subsystems, manage sourcing and vendors, perform root cause analysis, and support field testing and deployments.

Design and own mechanical components and subsystems for digital LiDAR products from R&D through NPI and sustaining. Create CAD assemblies and drawings, collaborate with electrical/optical/systems teams, ensure producibility and reliability with Manufacturing and Quality, and support validation, testing, and failure analysis.

Deploys and commissions data center cooling and mechanical systems through equipment startup, functional and performance testing, and live handover. Supports operational reliability, diagnoses thermal and equipment issues (chilled water, CDU, direct liquid cooling), resolves field installation conflicts, monitors thermal performance under AI load, and authors commissioning checklists and maintenance run books.

Lead end-to-end deployment and commissioning of mechanical and cooling systems across multiple data center sites. Own operational reliability, diagnose thermal issues, build commissioning standards, acceptance tests, and maintenance runbooks, serve as on-site technical authority through startup and handover, and set fleet-wide mechanical reliability benchmarks.

Hands-on mechatronics engineer owning hardware-software integration for an autonomous robot. Responsibilities include sensor/actuator driver development in ROS2, debugging firmware and real-time protocols, CAD design and GD&T drawings, PCB/power wiring support, test automation and HIL validation, and field reliability/stress testing for construction environments.

Design components and systems for production robots, ensuring performance and manufacturability. Collaborate with engineers to support product development.

Lead airframe development and reliability testing for an all-weather autonomous aircraft. Design weatherization, thermal management, avionics packaging, and charging pad mechanisms. Iterate DFM for scalable composite manufacturing, collaborate with electrical engineers, and develop test fixtures for reliability of electromechanical systems.