Top Design Engineer Jobs in San Francisco Bay Area, CA

Design and develop primary and secondary structural components for a next-generation UAV. Perform CAD modeling, hand calculations, limited FEA, generate drawings and documentation, support validation and testing, collaborate with cross-functional teams, and iterate hardware through manufacturing and flight tests.

Design, prototype, and iterate mechanical subsystems from concept to working hardware. Use CAD, perform hand calculations and FEA as needed, select materials and tolerances, build prototypes with 3D printing and CNC, and integrate mechanical designs with electronics, motors, sensors, and control systems in an on-site San Francisco environment.

As a Design Engineer, you'll enhance product UX with animations, manage the design system, and collaborate on front-end infrastructure, ensuring impactful design and functionality.

Designs and operates test infrastructure for propulsion and fluid systems, conducts analyses and testing, documents processes, and ensures quality performance metrics are met.

The Design Engineer will create marketing experiences on Givebutter's Astro-based site, collaborating with the design team to ensure engaging, functional interfaces that reflect the brand's identity.

Design, build, commission, and improve mechanical test equipment for battery and power electronics validation. Responsibilities include structural design, actuation systems, FEA and hand calculations, safety systems, CAD documentation, supplier management, and integration with instrumentation, controls, and automation to enable repeatable lab testing and manufacturing validation.

Lead end-to-end mechanical/electromechanical subsystem development from requirements through production sustainment. Create CAD/GD&T drawings, perform hand-calcs and FEA, plan and execute verification tests, design fixtures, and qualify suppliers. Drive manufacturability, reliability metrics, cross-functional tradeoffs, and mentor or set technical standards depending on level.

Lead end-to-end mechanical design for battery and power distribution hardware from requirements through production. Design enclosures, busbars, and housings to meet structural, thermal, EMI, and manufacturability requirements; perform analyses (FEA, tolerance stacks, hand calculations), create production CAD and drawings, develop and execute verification tests, qualify suppliers, and provide technical leadership or mentorship.

The Senior Propulsion Design Engineer will oversee hardware design for propulsion systems, conduct analyses, build prototypes, perform tests, and resolve issues to ensure optimal engine performance.

Design and validate propulsion systems for supersonic travel. Responsibilities include CAD modeling, conducting tests, and ensuring hardware performance.

As a Structures Design Engineer II, you'll design and analyze composite and metallic structures for high-performance aircraft, supporting layout development and collaboration with cross-functional teams.

Lead the design and integration of supersonic air inlet systems, applying analytical methods and CFD to assess performance metrics and resolve integration challenges.

Design and analyze composite and metallic structures for aircraft, perform CAD modeling, support structural layout and collaborate with teams across disciplines.

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

Lead the frontend digital design of D2D PHY for chiplet systems, optimizing performance and collaborating across teams while mentoring junior designers.

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.

The RF Microwave Design Engineer designs microwave components and systems, evaluates devices, and supports assemblies operating from DC to 60GHz for military and space programs.

Lead antenna architecture, design, simulation, prototyping, integration, and validation for airborne and ground products. Perform EM simulation, lab and chamber measurements, field testing, production test design, and supplier/manufacturing integration. Solve system-level RF issues, support regulatory/certification, and mentor engineers to deliver robust production antenna systems across multiple radio technologies.

Lead architecture, design, integration, validation, and production of highly integrated multi-radio RF front-end systems for aircraft and ground platforms. Define RF architectures supporting LTE/5G, GNSS, Wi‑Fi, ADS‑B/UAT, Bluetooth, ISM, V2V; perform RF system analysis, coexistence mitigation, antenna-sharing and MIMO strategies; develop lab validation and production test methods; support certifications and supplier/manufacturer integration; mentor engineers and establish RF design standards and roadmaps.

Design and validate antennas and RF front-ends from simulation to production: EM simulation, PCB RF schematic/layout, RF measurements (VNA, S‑parameters, radiation patterns), multi-radio coexistence, production qualification, and documentation.

Design, simulate, and optimize motors and actuators for drones and robotics. Develop electrical, mechanical, and thermal specifications; prototype, test, and validate designs; collaborate with manufacturing, quality, and field teams to ensure feasibility and continuous product improvement. Document processes and stay current on industry technologies.

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

As a Frontend Leaning Full Stack Engineer, you will improve internal software, enhance user-facing tools, and shape UX/UI for founders and investors, focusing on efficiency and product ownership.

As a Digital IC Design Engineer Intern, you will design RTL implementations for low-power digital systems, optimize architectures, and collaborate on verification and testing with engineers.

The Senior Mechanical Engineer will design and validate mechanical components, troubleshoot existing products, lead cross-functional projects, and collaborate with suppliers and partners to ensure quality and reliability in product development.