Top Mechanical Engineer Jobs in San Francisco Bay Area, CA

Lead mechanical architecture and design for connected consumer products from concept through mass production. Mentor mechanical engineers, drive DFM and manufacturing readiness, own system integration of electromechanical assemblies, manage suppliers, run feasibility and reliability testing, and shepherd programs through EVT, DVT, PVT, and MP milestones.

Design, install, and integrate aircraft mechanical systems and components. Create 3D CAD models, installation layouts, and detailed drawings. Manage PLM/BOM data, apply GD&T and tolerance stack-ups, support prototypes and production, perform root cause analysis, and collaborate across disciplines to ensure manufacturable, maintainable aircraft hardware.

The Senior Mechanical Engineer will design and develop consumer products, collaborate with teams, and lead mechanical engineers in creating and testing innovative technologies.

Lead supplier development for machined parts: audit and improve supplier processes, perform on-site quality investigations, support NPI, provide technical guidance on specifications and manufacturing, monitor supplier performance, and mitigate supply chain risks to enable scalable aerospace production.

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.

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.

As a Mechanical Engineer, you'll design, prototype, and scale rare-earth reactors, collaborating with machinists and researchers while documenting procedures and safety plans.

Design, prototype, test, and optimize high-volume vacuum manufacturing equipment and facility systems; integrate new system functions; manage suppliers for parts and assemblies; design piping and gas systems; optimize facility layout and material flow; troubleshoot cross-disciplinary engineering issues and communicate technical concepts to stakeholders.

The Mechanical Design Engineer will create 3D models and 2D drawings for fire suppression systems in battery energy storage systems, ensuring regulatory compliance and collaboration with engineering teams.