Flight Software Engineer
US$125,000 – US$175,000 / yr base salary
Posted 20 May 2026
Advertised as “Flight Software Engineer (Starlink Mobile)”
BranchFactor Summary
The original posting with the fluff stripped out
- Management level
- Individual contributor
| Base salary | US$125,000 – US$175,000 / yr |
|---|
Field of studyComputer Engineering, Computer Science, Electrical Engineering, Engineering, Mathematics, Science (or related)
Study levelBachelor's
SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.
FLIGHT SOFTWARE ENGINEER (STARLINK MOBILE)
Starlink Mobile is SpaceX's next-generation mobile network, connecting human beings all around the globe anywhere they can see the sky. We are in the early days of one of the most ambitious mega projects humanity has ever undertaken.
Flight Software is where all the disciplines at SpaceX come together. As flight software engineers, we are fully responsible for our spacecraft from cradle to fiery grave: for turning an idea, then a collection of parts, into a living, breathing, spacecraft. We work closely with electrical, mechanical, RF, thermal, propulsion, and guidance and control engineers to design, build, and fly some of the most sophisticated spacecraft in the world at a scale no-one else approaches. We own the full stack from the bare metal microcontroller firmware that drives our custom silicon, to Linux kernels and drivers on our larger CPUs and FPGAs, to the realtime phased array control, network control, and vehicle control that flies our satellites.
We are a small, tight-knit team with a relentless focus on speed, simplicity, reliability, and performance. To succeed in this role you must be a technically excellent first-principles problem solver, a passionately curious self-starter with a love for solving hard problems quickly, simply, and permanently in high-impact situations.
RESPONSIBILITIES:
- Develop mission critical control software to fly thousands of spacecraft in one of the harshest environments known to man.
- Develop cutting edge RF software to drive some of the most advanced phased arrays in existence.
- Develop high performance network software to turn thousands of nodes hurtling around Earth at Mach 20 into the world's largest mobile network.
- Own your work end-to-end from prototyping and design through implementation, test, deployment, and support.
BASIC QUALIFICATIONS:
- Bachelor’s degree in electrical engineering, computer engineering, computer science, or other engineering, math, or science discipline.
- Experience in C, C++, Rust, or other low-level systems programming language.
PREFERRED SKILLS AND EXPERIENCE:
- Experience writing bare-metal software for embedded devices.
- Experience writing Rust, C, or C++ in a production environment.
- Experience with network protocols, operating systems, and compilers.
- Experience owning software through design, development, testing, and deployment.