{"id":48799,"url":"https://alion.io/job/constellation-software-engineer","title":"Software Engineer","company":{"id":11183,"name":"Constellation","domain":"constellation.space","url":"https://alion.io/company/constellation","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-04T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Seattle, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":120000,"max":180000,"currency":"USD","period":"year","gross":null,"usd_annual":180000},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Go","optional":false},{"name":"Python","optional":false},{"name":"Rust","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-04-24T23:59:09Z","employer_posted_date":"2026-04-24","last_verified_at":"2026-10-05T00:43:24Z","board_verified":true,"closed_at":null,"days_open":163,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":162},"description":"The Role Constellation is looking for a versatile Software Engineer to build the backbone of our ground and simulation software. You will architect robust backend systems that allow our operators to communicate with, simulate, and track aerospace assets in real-time.\nResponsibilities\nDesign and build highly concurrent, distributed backend services.\n\nDevelop data ingestion pipelines capable of handling high-throughput, low-latency flight data.\n\nCreate software tools and simulation environments used by internal teams for mission planning.\n\nWrite clean, well-tested code and participate in rigorous peer reviews.\n\nRequirements\nB.S. in Computer Science, Software Engineering, or related discipline.\n\n3+ years of professional software development experience.\n\nStrong proficiency in at least one modern backend language (e.g., Go, Python, C++, or Rust).\n\nSolid understanding of networking, databases (SQL/NoSQL), and distributed systems architecture.","description_format":"text","description_chars":950,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Ground Systems","Space Services"],"lifecycle":[{"event":"open","at":"2026-04-24T23:59:09Z"}],"visa":[],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.243,"p_room":0.28,"age_days":162,"expected_fill_days":18,"reasons":["conf:1","win:tail","crowd:"],"computed_at":"2026-10-04T05:45:00Z"},"pay":{"stated_usd_annual":180000,"is_top_pay":true},"html_url":"https://alion.io/job/constellation-software-engineer","json_url":"https://alion.io/job/constellation-software-engineer.json","meta":{"generated_at":"2026-10-05T01:58:57Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2625,"day_limit":5000,"remaining_today":2375,"minute_limit":60,"resets_at":"2026-10-06T00:00:00Z"}}}