{"id":774412,"url":"https://alion.io/job/fsstudio-principal-software-engineer-flight-systems","title":"Principal Software Engineer- Flight Systems","company":{"id":673927,"name":"FS Studio","domain":"fsstudio.com","url":"https://alion.io/company/fsstudio","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":5,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Denver, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":160000,"max":195000,"currency":"USD","period":"year","gross":null,"usd_annual":195000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"AWS","optional":false},{"name":"C++","optional":false},{"name":"Linux","optional":false},{"name":"NASA cFS","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2025-12-09T17:06:51Z","employer_posted_date":"2025-12-09","last_verified_at":"2026-10-30T00:14:24Z","board_verified":true,"closed_at":null,"days_open":324,"trust":{"level":"stale","repost_count":1,"flags":["stale"],"days_open":323},"description":"Principal Software Engineer - Space Systems Location: Greater Denver, CO (on-site 3-5 days/week) Salary: $160k-$195k + bonus + benefits + relocation\nA 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.\nWhat You’ll Do\nLead architecture decisions and guide software best practices across the organization.\n\nDevelop flight software (cFS, embedded Linux), ground systems (Python, modern web frameworks), and cloud/embedded ML or autonomy systems.\n\nOwn full lifecycle delivery: requirements, development, testing, integration, and ops.\n\nProvide technical proposals, estimates, and cross-team coordination.\n\nMentor and uplift junior engineers.\n\nWhat We’re Looking For\n15+ years in spacecraft, mission control, or complex aerospace software systems.\n\nExpertise in C/C++ and Python.\n\nExperience with embedded Linux, real-time/flight software, and preferably NASA cFS.\n\nKnowledge of cloud services (AWS), containerization, version control, and Agile processes.\n\nAbility to collaborate with multidisciplinary teams and operate within rigorous engineering standards.\n\nU.S. Citizenship and eligibility for a Security Clearance; 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