{"id":115017,"url":"https://alion.io/job/ssi-spacecraft-bus-avionics-systems-engineer","title":"Spacecraft Bus, Avionics & Systems Engineer","company":{"id":16333,"name":"Space Systems Integration","domain":"ssi.space","url":"https://alion.io/company/ssi","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"C","score":63,"open_postings":24,"ghost_share":0.625,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":29,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Hardware","role_family":"Hardware","seniority":"staff","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Chantilly, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":180000,"max":240000,"currency":"USD","period":"year","gross":null,"usd_annual":240000},"salary_estimate":null,"experience_years_min":12,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"RTOS","optional":false}],"status":"live","first_seen_at":"2026-07-30T16:07:06Z","employer_posted_date":"2026-07-30","last_verified_at":"2026-10-18T04:25:44Z","board_verified":true,"closed_at":null,"days_open":79,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":79},"description":"SSI is seeking an Spacecraft Bus, Avionics & Systems Engineer to join our team in Chantilly, VA.\nWe seek technical individuals who will thrive in a highly collaborative work environment of small teams, using the most modern tools and methodologies to tackle the challenges of integrating complex space and ground communications systems.\nThis role evaluates contractor bus design, subsystem trade studies, radiation- hardening strategies, flight software architecture, and environmental testing.\nRole and Responsibilities include:\nProvide the technical leadership and assessment for the ESS Program Office in the prime contractor delivery of the space vehicle in the area of Mechanical, Electrical, or Test.\nLead the trades for unit and subsystem designs if necessary, integration and testing into the spacecraft bus, payload, and space vehicle.\nEnsure the technical design and interfaces within the space vehicle, along with the ground and terminal segments.\nSupport all component and unit test programs, including space qualification testing, ensuring survivability in the space environment. Develop test documentation, e.g., test plans and reports as necessary.\nSupport the space vehicle test program, ensuring survivability in the space environments. Develop test documentation, e.g., test plans and reports as necessary.\nBuild and maintain strong, collaborative relationships with various government customer organizations, contractors, and FFRDC teammates.\nRequired Qualifications:\nMust possess an active Top Secret/SCI clearance with the ability to obtain a Polygraph. \nBachelor of Science in a technical field, such as engineering, mathematics, physics, software, or computer science.\n15 years’ experience with spacecraft bus or subsystems, or Master’s degree and 12 years’ experience.\nPrevious proven coordination experience.\nEffective communication (both written and oral), and interpersonal skills.\nAbility to perform in highly visible and stressful situations.\nDOD or IC space experience preferred.\nSpace systems engineering experience desired at the unit, subsystem, spacecraft, or space vehicle levels.\nKey Technical & Capability Requirements:\n Radiation Hardening: Deep Understanding of Beyond Low Earth Orbit (BLEO) radiation environments, single-event effects (SEE/SEU), total ionizing dose (TID), and mitigation strategies for Galactic Cosmic Rays (GCR) and Solar Particle Events (SPE).\n Thermal & Environmental Controls: Evaluation of thermal architecturesdesigned for extreme lunar eclipses, long thermal soak periods, and deep-space sinks (using thermal modeling tools like Thermal Desktop).\n\n High-Propulsion: Technical oversight of liquid bipropellant, monopropellant, or high-power electric propulsion (EP) systems required for lunar orbit insertion and station keeping.\n Avionics & Flight Software: Review of rad-hard FPGAs, power processing units (PPU), and flight software framework architectures (e.g., NASA, cFS, VxWorks, RTOS) featuring autonomous fault management.\n SETA Oversight Duties: Leads technical review of contractor AssemblyIntegration & Test (AI&T) plans, Thermal Vacuum (TVAC) test matrices, and vendor verification cross-reference matrices (VCRM).\n\nRequirement to work on site at LAAFB 100%. Remote work unavailable.\nApproximately 10% travel within Southern California and CONUS, depending on prime contractor selection of unit suppliers.","description_format":"text","description_chars":3381,"description_truncated":false,"requirements":{"experience_years_min":12,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Space Services","Engineering Services"],"lifecycle":[{"event":"open","at":"2026-07-30T16:07:06Z"}],"visa":[],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":0.4,"p_active":0.387,"p_room":0.35,"age_days":78,"expected_fill_days":29,"reasons":["seen:78","stale_co","urgency","win:tail"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":240000,"is_top_pay":true},"html_url":"https://alion.io/job/ssi-spacecraft-bus-avionics-systems-engineer","json_url":"https://alion.io/job/ssi-spacecraft-bus-avionics-systems-engineer.json","meta":{"generated_at":"2026-10-18T05:57:02Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":8918,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":16333},"rest":"https://alion.io/mcp/rest/get_company?id=16333"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fssi-spacecraft-bus-avionics-systems-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fssi-spacecraft-bus-avionics-systems-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fssi-spacecraft-bus-avionics-systems-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/ssi-spacecraft-bus-avionics-systems-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fssi-spacecraft-bus-avionics-systems-engineer"}]}