Mechanical Engineer jobs in Washington

Shield AI

Full-time · Seattle, WA · $266,000 – $400,000

This role leads the design and optimization of fluid and thermal systems for autonomous aircraft and ground systems at a defense-tech company. It suits experienced engineers who want technical leadership responsibility on products with real-world mission impact.

Listed on Shield AI’s careers site · Apply there ↗

Stoke Space

Full-time · Kent, WA · $129,150 – $252,105

Lead the mechanical and structural design of the aft end for a reusable launch vehicle, managing a team through design, build, test, and flight operations. This role suits experienced aerospace engineers with a track record of flight-qualified hardware who want hands-on ownership of complex systems in a fast-moving startup.

Listed on Stoke Space’s careers site · Apply there ↗

Stoke Space

Full-time · Kent, WA

Stoke is hiring mechanical engineers to design and optimize structural and thermal systems for their reusable rocket. This role suits engineers who thrive on hardware ownership, fast problem-solving, and seeing designs through from concept to flight.

Listed on Stoke Space’s careers site · Apply there ↗

Shield AI

Full-time · Seattle, WA · $160,000 – $240,000

Shield AI seeks a mechanical test engineer to design measurement systems and validate aircraft performance for defense applications. This role suits someone with hands-on experience in hydraulic systems, instrumentation, and Python who wants to contribute directly to hardware that protects service members.

Listed on Shield AI’s careers site · Apply there ↗

Shield AI

Full-time · Seattle, WA · $160,000 – $240,000

Shield AI seeks a Staff Mechanical Engineer to design and develop autonomous aircraft systems, focusing on complex assemblies like landing gear, flight controls, and wing mechanisms for their X-BAT platform. This role suits experienced mechanical engineers who want to contribute to defense technology while working on cutting-edge autonomous vehicles.

Listed on Shield AI’s careers site · Apply there ↗

Stoke Space

Full-time · Kent, WA · $151,305 – $327,810

Senior engineer designing and qualifying valves and actuators for a reusable launch vehicle, responsible for the complete lifecycle from requirements and CAD modeling through manufacturing, testing, and field troubleshooting. This role suits experienced mechanical or aerospace engineers comfortable moving fast in a startup environment, balancing hands-on hardware work with analysis and cross-team coordination.

Listed on Stoke Space’s careers site · Apply there ↗

Shield AI

Full-time · Seattle, WA · $140,000 – $210,000

Shield AI seeks a vibrations engineer to validate autonomous systems hardware through dynamic testing and structural analysis. This role combines hands-on lab work with cross-functional collaboration to ensure products meet operational demands.

Listed on Shield AI’s careers site · Apply there ↗

Stoke Space

Full-time · Kent, WA · $129,150 – $327,810

This role leads the definition and validation of vibration, shock, and acoustic environments for a reusable launch vehicle, combining analytical modeling with hands-on test support. It suits experienced structural dynamics engineers who can own a technical domain, mentor others, and move quickly in a space technology environment.

Listed on Stoke Space’s careers site · Apply there ↗

Shield AI

Seattle, WA · $220,000 – $330,000

Shield AI seeks a senior mechanical engineering manager to lead avionics development for autonomous systems used in defense and operations. This role suits someone with deep aerospace or avionics expertise who can guide a technical team and drive product innovation in a fast-growing defense-tech company.

Listed on Shield AI’s careers site · Apply there ↗

Shield AI

Full-time · Seattle, WA · $160,000 – $240,000

Shield AI is seeking a mechanical engineer to design and develop structural systems for autonomous aircraft, working across the full product lifecycle from concept through production. This role suits experienced aerospace engineers who want hands-on responsibility for complex mechanical systems in a fast-moving defense-tech environment.

Listed on Shield AI’s careers site · Apply there ↗

Shield AI

Full-time · Seattle, WA · $100,000 – $160,000

Shield AI seeks a mechanical engineer to design and develop hydraulic systems for their autonomous UAV aircraft platforms. This role suits someone passionate about defense technology who can balance complex system architecture with hands-on prototyping and testing.

Listed on Shield AI’s careers site · Apply there ↗

Shield AI

Full-time · Seattle, WA · $138,000 – $200,000

Shield AI is seeking a Staff-level mechanical engineer to lead the integration of complex aircraft systems across multiple engineering disciplines and product development stages. This role suits experienced systems integration leaders who can mentor teams, establish architecture standards, and drive improvements in design and manufacturability.

Listed on Shield AI’s careers site · Apply there ↗

Shield AI

Full-time · Seattle, WA · $130,000 – $200,000

Shield AI is seeking a mechanical engineer to design and develop autonomous aircraft systems, working on complex electro-mechanical assemblies from concept through production release. This role suits someone passionate about defense technology who wants to contribute to real-world systems with a mission-driven team.

Listed on Shield AI’s careers site · Apply there ↗

Shield AI

Full-time · Seattle, WA · $250,000 – $370,000

Shield AI seeks an experienced fluid and thermal systems engineer to lead the design and optimization of cooling and propulsion systems for autonomous aircraft and ground robots used in defense operations. This role suits someone who combines deep technical expertise in thermal and fluid mechanics with the leadership skills to guide cross-functional teams through complex engineering challenges.

Listed on Shield AI’s careers site · Apply there ↗

Shield AI

Full-time · Seattle, WA · $160,000 – $240,000

Shield AI seeks a mechanical design engineer to lead development of ground support equipment for autonomous aircraft used in military operations. This role suits experienced engineers who can design robust field-deployable systems and collaborate across engineering, manufacturing, and operations teams.

Listed on Shield AI’s careers site · Apply there ↗

Shield AI

Full-time · Seattle, WA · $200,000 – $300,000

Shield AI is looking for a mechanical test engineer to design and validate advanced aircraft systems through hands-on testing and custom instrumentation. This role suits someone with expertise in hydraulic systems, sensor technology, and test automation who wants to contribute to defense technology that protects personnel.

Listed on Shield AI’s careers site · Apply there ↗