Systems Engineer jobs in California

Relativity Space

Long Beach, CA · $148,000 – $222,000

This role leads the design and deployment of ground support systems that test and integrate Terran R's avionics hardware through launch. It suits experienced engineers who can own complex electromechanical systems end-to-end and thrive in a fast-paced aerospace environment.

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

Intercom

Full-time · San Francisco, CA · $142,000 – $162,000

A systems engineer role focused on modernizing IT infrastructure through automation, identity management, and cloud-based tools within Salesforce's Fin division. This suits engineers with 3-5 years of systems or DevOps experience who want to move into infrastructure-as-code and AI-driven automation at a fast-growing company.

Listed on Intercom’s careers site · Apply there ↗

Agility Robotics

Full-time · Fremont, CA · $191,000 – $248,000

This staff-level systems engineering role leads the design and safety architecture of humanoid robots deployed in industrial settings, balancing rigorous functional safety standards with rapid development cycles. It's suited for an experienced technical leader with deep expertise in safety-critical systems who can navigate complex trade-offs and drive integration across mechanical, electrical, and software domains.

Listed on Agility Robotics’s careers site · Apply there ↗

Shield AI

Full-time · San Diego, CA · $141,834 – $212,752

Shield AI seeks a Requirements Engineer to translate product vision into detailed technical specifications for their Hivemind autonomy SDK, collaborating across product, engineering, and QA teams to define testable system requirements and architecture. This role suits someone with strong systems engineering fundamentals and autonomous systems experience who enjoys bridging the gap between what users need and what engineers build.

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

Together AI

Full-time · San Francisco, CA · $200,000 – $300,000

A research engineering role focused on developing and optimizing GPU kernels for machine learning applications, requiring deep expertise in parallel computing and CUDA/Triton. This suits experienced systems engineers who want to drive performance innovations at the intersection of GPU architecture and AI infrastructure.

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

Voyager

San Diego, CA · $135,000 – $185,000

This role involves characterizing and testing advanced optical sensors and imaging systems for space and national security applications, including tasks like focal plane array analysis, test automation, and radiometric measurement. It suits engineers with hands-on lab experience in optical or electro-optical systems who want to work on high-reliability space hardware.

Listed on Voyager’s careers site · Apply there ↗

Boeing

Full-time · El Segundo, CA · $108,800 – $160,000

This role leads mission analysis and modeling for satellite constellations, building simulations to validate system performance and developing algorithms for optical sensors and tracking. It suits engineers with 5+ years of satellite systems experience who want technical leadership responsibility on defense and space programs.

Listed on Boeing’s careers site · Apply there ↗

NVIDIA

Full-time · Santa Clara, CA · $184,000 – $356,500

NVIDIA is hiring a Senior Systems Software Engineer to develop and validate GPU server platforms, working on bring-up, integration, and troubleshooting of data center compute systems. The role suits someone with deep expertise in server architecture, firmware, and hardware-software integration who enjoys hands-on debugging and cross-team collaboration.

Listed on NVIDIA’s careers site · Apply there ↗

Relativity Space

Full-time · Long Beach, CA · $164,000 – $246,000

Relativity Space seeks a systems engineer to lead integrated testing and vehicle development for their Terran R rocket, owning test campaigns from planning through hotfire execution. This role suits experienced aerospace engineers who thrive solving first-time problems across multiple disciplines while balancing speed and risk in a fast-moving startup environment.

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

Agility Robotics

Full-time · Fremont, CA · $170,000 – $221,000

This role involves designing and integrating software systems for autonomous humanoid robots deployed in logistics and manufacturing. It suits experienced systems engineers comfortable with safety-critical robotics who can balance structured engineering practices with startup speed.

Listed on Agility Robotics’s careers site · Apply there ↗

Boeing

Full-time · El Segundo, CA · $176,800 – $239,200

Boeing seeks an experienced engineer to develop and qualify electro-optical and infrared components for satellite and space systems, managing materials, parts, and processes through design and testing. This role suits someone with deep expertise in photonics hardware and sensor systems who can navigate complex technical challenges in defense and space markets.

Listed on Boeing’s careers site · Apply there ↗

Relativity Space

Long Beach, CA · $164,000 – $225,500

This role leads the design and integration of fluid systems for a launch vehicle, ensuring propellant, pressurant, and pneumatic subsystems work together reliably from concept through flight. It's suited to an experienced engineer who wants ownership of complex aerospace systems and direct involvement with hardware on the factory floor.

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

Boeing

Full-time · Seal Beach, CA · $119,850 – $162,150

Boeing is hiring a systems engineer to lead development of satellite ground mission planning systems, working with cross-functional teams on requirements, architecture, integration, and test. This role suits experienced engineers who want to advance their technical leadership skills while staying hands-on with cutting-edge defense technology.

Listed on Boeing’s careers site · Apply there ↗

Voyager

Folsom, CA · $115,000 – $170,000

A senior controls and modeling engineer role focused on developing high-fidelity simulations and control algorithms for aerospace propulsion and flight systems in defense applications. This position suits experienced engineers with strong backgrounds in dynamic systems, MATLAB/Simulink, and solid rocket motor modeling who can work independently while collaborating across multidisciplinary teams on government contracts.

Listed on Voyager’s careers site · Apply there ↗

Relativity Space

Long Beach, CA · $109,000 – $163,000

This role involves managing the development and testing of Relativity's Terran R rocket vehicle, balancing technical requirements with manufacturing scalability and reliability. You'll work across all engineering disciplines to define how the rocket gets built, tested, and launched, owning verification activities and solving novel challenges in vehicle integration.

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

Voyager

Folsom, CA · $93,000 – $134,000 · Remote

A technical coordination role supporting defense and aerospace projects through their full lifecycle, suited for mid-career engineers comfortable with structured program environments and government contracting where they can develop leadership skills.

Listed on Voyager’s careers site · Apply there ↗

Relativity Space

Long Beach, CA · $160,000 – $240,000

This role leads a systems engineering team at a rocket manufacturer, overseeing both the tools and processes that coordinate development across subsystems and the technical work of ensuring all vehicle components function together. It suits someone with deep systems integration experience from multiple programs who can balance engineering rigor with the pace needed to reach first launch.

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

Relativity Space

Long Beach, CA · $126,000 – $188,000

This role involves analyzing and optimizing rocket launch trajectories and vehicle performance through simulation and multi-disciplinary trade studies. It suits engineers who want hands-on impact on complex space systems, combining software development with systems-level problem-solving in a startup environment.

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