Senior Software Engineer, Embedded

Reposted 12 Days Ago
Easy Apply
Long Beach, CA
Hybrid
165K-211K Annually
Senior level
3D Printing • Aerospace • Hardware • Robotics • Software • Manufacturing
We are building the future of aerospace.
The Role
Design, implement, and maintain embedded software for rocket microcontrollers. Collaborate with teams to support product development and enhance software architecture.
Summary Generated by Built In

At Relativity Space, we have two audacious goals: to build the next great commercial launch company with Terran R and to become America's leading force in additive manufacturing innovation. Both contribute to our long-term vision of creating humanity’s industrial base on Mars, paving the way for interplanetary life to expand the possibilities of the human experience. This journey begins right here on Earth – where we design, build, and fly rockets to deliver customer payloads to orbit. Terran R, our medium-to-heavy lift reusable rocket, fulfills the growing demand for launch capacity, thanks to our iterative approach that accelerates design, testing, and development while minimizing costs. While our groundbreaking research and development in 3D printing pushes the boundaries of large-scale additive manufacturing.

Your journey with us is more than just a job – it’s an opportunity to shape the future of aerospace technology, additive manufacturing, and the human experience alongside a community of passionate, creative individuals. Join us on this extraordinary journey, as we work together to transform our vision into reality.

About the Team: 

The Vehicle Software team is responsible for the software on all Avionics boxes on the vehicle. This spans the operating system image, the applications running on those boxes, and software configuration and deployment. We are also responsible for the test infrastructure required to validate the software, such as the HITL and HOOTL test environments. Finally, our team supports rocket manufacturing and system test efforts starting with Avionics box testing, engine testing, stage integration and checkouts, stage qualification/hot fires, and concluding with stacked vehicle testing and launch.

About the Role:

  • Design, implement, and maintain embedded software in C++ for microcontrollers in rocket systems 
  • Develop software on Real-Time Operating Systems (RTOS) 
  • Integrate with low-level hardware interfaces: SPI, I2C, UART, GPIO, interrupts, etc. 
  • Implement communication protocols such as UDP, multicast, Ethernet 
  • Write clean, efficient, and testable code for real-time and safety-critical applications 
  • Collaborate with hardware, systems, and test engineers to support full product development lifecycle 
  • Participate in code reviews, system design discussions, and debugging sessions 
  • Contribute to continuous improvement of our embedded software architecture and tools 

About You:

  • Bachelor’s or Master’s degree in Computer Engineering, Electrical Engineering, or related field 
  • 4+ years of experience developing embedded software with C or C++ 
  • Experience with RTOS environments (FreeRTOS, ThreadX, VxWorks, or equivalent) 
  • Solid understanding of microcontroller architectures and peripheral interfaces 
  • Strong debugging and optimization skills for embedded systems 
  • Comfortable working with hardware schematics, and test equipment (logic analyzers, power supplies, oscilloscopes  
  • Experience with Git, CI/CD pipelines, and modern software development practices 

Nice to haves but not required:  

  • Experience with space-rated systems or launch vehicles 
  • Familiarity with Python or scripting tools for automation and testing 
  • Proficiency with networking protocols such as UDP, Ethernet, and multicast 
  • Experience developing motor control software for brushless motors including FOC (Field-Oriented Control)  
  • Understanding of control theory, especially PID tuning in embedded environments 

At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.
Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.

Hiring Range:
$165,000$211,000 USD

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Top Skills

C++
Ci/Cd
Ethernet
Freertos
Git
Gpio
I2C
Rtos
Spi
Threadx
Uart
Udp
Vxworks

What the Team is Saying

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The Company
HQ: Long Beach, CA
1,300 Employees
Year Founded: 2016

What We Do

Welcome to Relativity Space, where we're rewriting the rules of rocketry. We have built and launched the world’s first 3D printed rocket, Terran 1, and are now bringing to market Terran R, our reusable medium-to-heavy-lift launch vehicle. Our iterative development approach revolutionizes the process from design to flight, ensuring we can scale to meet customer needs.

Our focus is clear: provide exceptional launch services that are highly competitive in the market. We design and manufacture cost-effective, high-performance, and reusable rockets at an unprecedented pace and scale – setting a new industry standard.

At Relativity Space, we have two audacious goals: build the next great commercial launch company with Terran R, and become America’s leading force in additive manufacturing innovation. Both ladder up to our long-term vision of creating humanity’s industrial base on Mars, paving the way for interplanetary life to expand the possibilities of the human experience. That journey begins right here on Earth—designing, building, and flying rockets to deliver customer payloads to orbit.

A medium-to-heavy lift reusable rocket, Terran R is designed to meet the ever-growing need for launch capacity. Our iterative approach accelerates the design, test, and development processes, enabling high-volume performance and reliability, with lower costs and shorter time to market. Our 3D printing research and development is at the bleeding edge, setting the standard for a new era of large-scale additive manufacturing.

Why Work With Us

We believe in a future where interplanetary life fundamentally expands the possibilities for the human experience. In realizing this, our long-term goal is to create humanity’s industrial base on Mars. The first step toward this long-term vision starts here on Earth – building rockets and pushing the boundaries of additive manufacturing.

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Relativity Space Teams

Team
Launching the Future of Humanity in Space
Team
Engineering
About our Teams

Relativity Space Offices

Hybrid Workspace

Employees engage in a combination of remote and on-site work.

Given the dynamic nature and diversity of roles at Relativity Space, there is no one-size-fits-all approach for how every team works best.

Typical time on-site: Flexible
HQLong Beach, CA
Cape Canaveral, FL
Center, MS
Kent, WA
Washington, DC
Learn more

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