CesiumAstro
Senior Software Engineer - Fullstack
$133K–$161K
Westminster, CO · On-site · Senior · Full-time · Posted Sep 21, 2026
- Experience
- 5+ years of relevant software engineering experience.
- Education
- Bachelor’s degree in Software Engineering, Computer Engineering, or relevant field.
- Visa sponsorship
- Applicants must be a U.S. citizen, lawful permanent resident, 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.
About the job
Build and integrate full-stack software for space mission systems, including distributed applications, operator interfaces, and secure ground and flight software.
What you'll do
- Build full-stack applications and modernize legacy space-related ground and flight software.
- Develop distributed applications using microservices, cloud-native architectures, and DLT/consensus frameworks.
- Support system integration and testing, DevSecOps, automated testing, and secure software practices.
What they ask for
- Bachelor’s degree in Software Engineering, Computer Engineering, or relevant field.
- 5+ years of relevant software engineering experience.
- Demonstrated technical leadership and experience architecting microservices, APIs, message buses, and high-availability systems.
- U.S. citizenship and ability to obtain a Secret security clearance.
Nice to have
- Existing security clearance (TS/SCI preferred).
- Experience with DoD/IC programs or spacecraft, operations software, and flight/ground integration.
Pay
USD 133,000–161,000 (per-year-salary) — base salary
Tools
C++, C#, Rust, Python, Go, AWS, Azure, GitHub
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