{"id":177567,"url":"https://alion.io/job/cesiumastro-senior-spacecraft-systems-engineer-payload-2","title":"Senior Spacecraft Systems Engineer - Payload","company":{"id":5315,"name":"CesiumAstro","domain":"cesiumastro.com","url":"https://alion.io/company/cesiumastro","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":84,"open_postings":40,"ghost_share":0,"stale_share":0.625,"repost_share":0,"time_to_fill_p50_days":47,"computed_at":"2026-10-31T05:58:55Z"}},"role":"Hardware","role_family":"Hardware","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Westminster, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":133000,"max":161000,"currency":"USD","period":"year","gross":null,"usd_annual":161000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Bitbucket","optional":false},{"name":"Cameo Systems Modeler","optional":false},{"name":"CATIA","optional":false},{"name":"Confluence","optional":false},{"name":"Git","optional":false},{"name":"GitLab","optional":false},{"name":"IBM DOORS","optional":false},{"name":"Jira","optional":false},{"name":"MBSE","optional":false},{"name":"Microsoft Office","optional":false},{"name":"SharePoint","optional":false},{"name":"Verification & Validation","optional":false}],"status":"live","first_seen_at":"2026-08-30T23:08:05Z","employer_posted_date":"2026-08-30","last_verified_at":"2026-10-31T10:48:55Z","board_verified":true,"closed_at":null,"days_open":61,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":61},"description":"ESSENTIAL ROLES AND RESPONSIBILITIES\nAnalyze customer, mission, and system-level requirements and decompose them into clear, verifiable system and subsystem requirements.\nEstablish clear definitions for all hardware and software interfaces between the payload and the space vehicle\nEnsure requirements maintain end-to-end traceability to customer requirements, system architecture, and Concept of Operations (CONOPS).\nDefine and manage hardware, software, electrical, mechanical, and data interfaces between system elements.\nCollaborate with cross-functional engineering teams to refine requirements for completeness, feasibility, technical accuracy, and manufacturability.\nSupport requirements management, configuration management, baseline control, and engineering change activities.\nIdentify technical risks, requirement gaps, ambiguities, and design issues early in the development lifecycle.\nSupport system architecture development, technical trade studies, and engineering analyses to evaluate design alternatives and optimize system performance.\nDevelop system verification and validation strategies, including verification methods (test, analysis, demonstration, and inspection), acceptance criteria, and verification levels aligned with program requirements.\nDefine verification configurations, including hardware, software, firmware, and test environments required to support verification activities.\nDevelop and maintain verification documentation, verification cross-reference matrices (VCRM), requirements traceability matrices, and verification evidence packages.\nPartner with Integration & Test teams to plan, coordinate, and support system integration and verification activities.\nEvaluate test results, resolve technical discrepancies, and support corrective actions to ensure compliance with system requirements.\nSupport technical planning, Program Increment (PI) planning, staffing assessments, and engineering execution activities.\nPrioritize systems engineering activities to meet technical, cost, schedule, and program milestones.\nParticipate in technical reviews, design reviews, customer meetings, and engineering milestone activities.\nMentor junior engineers on systems engineering best practices, requirements development, traceability, verification, and technical documentation.\nDrive continuous improvement of engineering processes, systems engineering rigor, and technical documentation.\nCollaborate across multidisciplinary engineering teams to support successful program execution.\nPerform additional duties and responsibilities as assigned.\nJOB REQUIREMENTS AND MINIMUM QUALIFICATIONS\nBachelor’s degree in Aerospace Engineering, Systems Engineering, Electrical Engineering, Mechanical Engineering, Computer Engineering, Physics, or a related technical discipline with typically 5-8 years of relevant experience; Master’s degree in a related technical discipline with typically 3-6 years of relevant experience; or PhD in a related technical discipline with typically 0-3 years of relevant experience.\nStrong knowledge of systems engineering principles and the systems development lifecycle.\nExperience developing, managing, and verifying system and subsystem requirements.\nKnowledge of systems architecture, interface management, systems integration, and configuration management.\nUnderstanding verification, validation, and systems integration processes.\nAbility to interpret customer requirements, Concept of Operations (CONOPS), and technical specifications to develop engineering solutions.\nMicrosoft Office Suite (Word, Excel, PowerPoint, Visio)\nRequirements Management tools (Jama, IBM DOORS, or similar)\nModel-Based Systems Engineering (MBSE) tools (CATIA Magic/Cameo, MagicDraw, or similar)\nSystems modeling and simulation tools\nCollaboration platforms (Confluence, SharePoint, or similar)\nConfiguration management and version control tools (Git, GitLab, Bitbucket, or similar)\nIssue tracking tools (Jira or similar)\nStrong analytical, troubleshooting, and problem-solving skills.\nExcellent organizational skills and attention to detail.\nEffective written, verbal, and interpersonal communication skills.\nAbility to collaborate effectively within multidisciplinary engineering teams.\nPREFERRED EXPERIENCE\nFamiliarity with spacecraft mission planning, launch support, and on-orbit operations.\nExperience supporting spacecraft system integration, mission readiness, and operational activities.\nExperience supporting aerospace, defense, or other highly regulated engineering 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