Principal Software Engineer- Flight Systems
fs-studio
Denver
Posted Dec 9, 2025
- Full-time
- Remote
- Engineering
Job description
# **Principal Software Engineer – Space Systems** **Location:** Greater Denver, CO (on-site 3–5 days/week) **Salary:** $160k–$195k + bonus + benefits + relocation A fast-growing space-technology company is seeking a **Principal Software Engineer** to lead architecture and development of ground and flight software for lunar and deep-space missions. This is a high-impact role influencing technical direction across multiple mission programs. ### **What You’ll Do** - Lead architecture decisions and guide software best practices across the organization. - Develop flight software (cFS, embedded Linux), ground systems (Python, modern web frameworks), and cloud/embedded ML or autonomy systems. - Own full lifecycle delivery: requirements, development, testing, integration, and ops. - Provide technical proposals, estimates, and cross-team coordination. - Mentor and uplift junior engineers. ### **What We’re Looking For** - 15+ years in spacecraft, mission control, or complex aerospace software systems. - Expertise in C/C++ and Python. - Experience with embedded Linux, real-time/flight software, and preferably NASA cFS. - Knowledge of cloud services (AWS), containerization, version control, and Agile processes. - Ability to collaborate with multidisciplinary teams and operate within rigorous engineering standards. - U.S. Citizenship and eligibility for a Security Clearance; must meet export-control requirements. ### **Benefits** - Competitive compensation + signing bonus - Health insurance - 401(k) - Flexible time off - Quarterly incentives - Relocation support