{"id":3570456,"url":"https://alion.io/job/saic-principal-systems-engineer-2","title":"Principal Systems Engineer","company":{"id":58788,"name":"SAIC","domain":"saic.com","url":"https://alion.io/company/saic","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"B","score":78,"open_postings":56,"ghost_share":0,"stale_share":0.893,"repost_share":0,"time_to_fill_p50_days":24,"computed_at":"2026-11-01T06:10:25Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"lead","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["El Segundo, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":121000,"max_usd":245000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1961},"experience_years_min":9,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-08-31T23:45:31Z","employer_posted_date":"2026-08-31","last_verified_at":"2026-11-01T20:03:10Z","board_verified":true,"closed_at":null,"days_open":61,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":61},"description":"Make a difference for national security by joining a team of dedicated professionals in El Segundo, CA who assist the US Space Force in developing and deploying the satellites and ground systems for Nuclear Detection System (NDS) capabilities. These systems provide timely and critical nuclear detection data to our warfighter to ensure national security mission success.\nOur Systems Engineering & Integration (SE&I) team has an immediate need for a hybrid Principal Nuclear Detection System Engineer (USNDS) in El Segundo, CA with mission experience in space/ground systems for the management, development, and deployment of NDS systems to ensure on-time delivery of capabilities. As a SE&I professional, candidates will provide System Engineering (SE) services across all SE disciplines with emphasis in integration and test toward delivering operational capabilities into an enterprise system architecture.\nJob Responsibilities:\nProvide Systems Engineering expertise with focus on Ground software development and verification to SSC NDS program office as a member of the SE&I team.\n\nSupport Ground System DT&E, OT&E and associated milestone deliverables reviews and design maturity assessment.\n\nPerform requirement definition & allocations, refine enterprise operational concepts, evolve system architectures, and develop verification methodologies toward operational acceptance.\n\nConduct and maintain the program technical baseline including Requirements Specification, ICDs, and Systems Engineering processes.\n\nConduct mission analysis to define technical requirements and interfaces, provide analysis of alternatives, guide development, evaluate expected performance against requirements and mission needs.\n\nPerform milestone readiness reviews to demonstrate the design meets milestone criteria, specifications and specified customer requirements.\n\nCollaborate with internal and external stakeholders including executive officials, military officers, development contractors, and end users.\n\nDevelop briefings and assessments to a variety of audiences and must be able to convey information in a clear and articulate manner to Government leadership.\n\n Required Education, Experience, and Qualifications:\nActive Secret Clearance and willing to obtain a Top Secret clearance\n\nBachelor’s Degree and nine (9) or more years of experience. Masters Degree and (7) or more years of experience\n\nExperience with systems development, integration & test throughout the lifecycle\n\nRelevant DoD space and ground system development experience\n\nExperience leading combined hardware and software integration activities\n\nExperience with space-ground systems architectures and lifecycle support\n\nExperience implementing agile development techniques\n\nStrong leadership, interpersonal communications skills\n\nExperience in collaborating with Government & contractor teams\n\nDesired Education, Experience, and Qualifications:\nMaster’s Degree in engineering, science or related technical field\n\nExperience in large Government systems development and acquisition\n\nThorough understanding of SSC space & ground systems, including Navigation, Missile Warning, and NDS systems design, integration and test\n\nActive TS or TS/SCI Clearance","description_format":"text","description_chars":3212,"description_truncated":false,"requirements":{"experience_years_min":9,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Digital Government","Systems Integrators","Engineering Services"],"lifecycle":[{"event":"open","at":"2026-10-31T16:02:22Z"}],"visa":[],"liveness":{"score":14,"band":"cold","label":"Long shot","p_open":1,"p_active":0.486,"p_room":0.28,"age_days":61,"expected_fill_days":24,"reasons":["conf:9","stale_co","wave","velocity","win:tail","crowd:brand"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/saic-principal-systems-engineer-2","json_url":"https://alion.io/job/saic-principal-systems-engineer-2.json","meta":{"generated_at":"2026-11-01T22:42:23Z","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":34488,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"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":58788},"rest":"https://alion.io/mcp/rest/get_company?id=58788"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsaic-principal-systems-engineer-2"},{"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%2Fsaic-principal-systems-engineer-2"},{"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%2Fsaic-principal-systems-engineer-2"},{"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/saic-principal-systems-engineer-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsaic-principal-systems-engineer-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3570456}},{"tool":"search_jobs","arguments":{"company":"saic.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3570456},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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