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Posted 2 mo agoFirst seen 24 d ago
Senior Flight Software Engineer
Posted by CesiumAstro on 30 August 2026, 64 days ago. Still on their Lever board when we checked 37 min ago. Half of CesiumAstro's roles come down within 46 days.
What the posting is about
Develop and test flight software for leading-edge communication satellites. Collaborate with senior engineers and mentor a team. Work in a startup environment to launch satellites into orbit.
Read out of the posting
Levelsenior
Experience asked5+ years
EmploymentFull time
LocationWestminster, CO
RemoteNot stated
Visa sponsorshipNo
SalaryNot published, and most postings do not
Posted2026-08-30
Found vialever, direct from their system
We saw it 1 month after it went up.
The posting, as the company wrote it
Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State.
At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team.
We are looking to add a Senior Flight Software Engineer II to our Internal Missions team. If you enjoy working in a startup environment and are passionate about developing software for leading-edge communications satellites, we would like to hear from you.
In this position, you will be responsible for the CesiumAstro satellite flight software and software-in-the-loop testing through all stages of the development process. Your work will include developing software to monitor, test, and control spacecraft subsystems such as attitude, command and data handling, navigation, thermal, and power. The ideal candidate will be an experienced spacecraft software engineer, motivated to develop every aspect of space mission software from Linux-based satellite operating systems to low-level embedded products. You will work and learn from a cohort of senior and principal software engineers. You will use your experience to direct, mentor, and grow a team of motivated spacecraft engineers in the development of a new satellite system.
As a CesiumAstro team member, you will work on a small team to develop satellites and put them in orbit. You will be responsible for software design to include initial architecture and block diagrams, requirements definition, implementation, code review, and validation and verification. You will need to identify simplifying solutions to simulate complex problems and explain key results and decisions to the team.
Copied from CesiumAstro’s own board, not rewritten.
Also open at CesiumAstro
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