{"id":2228355,"url":"https://alion.io/job/saic-astrodynamics-engineer","title":"Astrodynamics 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":82,"open_postings":57,"ghost_share":0,"stale_share":0.93,"repost_share":0,"time_to_fill_p50_days":18,"computed_at":"2026-10-26T05:57:25Z"}},"role":"Aerospace","role_family":"Aerospace","seniority":"junior","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":null,"salary_estimate":{"min_usd":87000,"max_usd":159000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":108},"experience_years_min":2,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Fortran","optional":false},{"name":"HPC","optional":false},{"name":"Java","optional":false},{"name":"MATLAB","optional":false},{"name":"Python","optional":false},{"name":"GMAT","optional":true},{"name":"Orekit","optional":true}],"status":"live","first_seen_at":"2026-09-18T02:27:05Z","employer_posted_date":"2026-09-18","last_verified_at":"2026-10-26T08:38:18Z","board_verified":true,"closed_at":null,"days_open":38,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":38},"description":"SAIC is hiring Astrodynamics Engineers in Chantilly, VA to join a mission-driven analysis team supporting multiple satellite programs at the forefront of national innovation. This team develops and analyzes novel satellite missions that directly support national priorities, working within a supportive Government environment and engaging frequently with senior Government decision-makers. Engineers will solve complex modeling and simulation challenges and collaborate with multi-disciplinary experts to provide comprehensive, actionable insights.\nResponsibilities include, but are not limited to:\nDevelop and apply astrodynamics and/or orbit determination models to support satellite mission design, analysis, and assessment.\n\nPerform independent trade studies and technical assessments of orbits, maneuvers, RPO (Rendezvous and Proximity Operations), conjunction risks, and related mission parameters.\n\nEvaluate and validate results and analysis products provided by external teams, identifying gaps, risks, and opportunities for improvement.\n\nDesign, implement, and refine modeling and simulation tools in Python or C++ (or by rapidly transferring skills from other programming languages), including potential use of High Performance Computing (HPC) resources.\n\nIdentify and explore new mission concepts, analytical approaches, and modeling techniques that enhance mission effectiveness and resilience.\n\nPrepare and present clear, actionable technical briefings and written reports to Government customers and senior decision-makers.\n\nCollaborate closely with multi-disciplinary experts in propulsion, radars, optics, AI/ML, cloud computing, and GPU computing to develop integrated analyses and solutions; refine analyses based on formal internal and external peer review.\n\nBachelor’s degree in Aerospace Engineering, Applied Mathematics, Physics, or a related technical STEM field and 2+ years of relevant experience; ORMaster’s degree in Aerospace Engineering, Applied Mathematics, Physics, or a related technical STEM field and 0+ years of experience.\n\nDemonstrated experience in astrodynamics/orbital mechanics, orbit determination, or related space mission analysis (e.g., orbit maneuver design, RPO, maneuver detection, conjunction assessment, or space domain awareness).\nAbility to program in Python or C++, or to quickly become proficient by transferring skills from another scientific/engineering programming language (e.g., MATLAB, Java, C, Fortran).\nStrong analytical and problem-solving skills, with the ability to work independently and as part of a collaborative, mutually supportive engineering team.\nAbility to refine and improve analyses based on feedback from formal internal and external peer reviews.\nClearance Requirements:\nActive TS/SCI clearance with the ability to obtain and maintain a polygraph.\nMust meet eligibility requirements for access to sensitive Government facilities, data, and programs.\nPreferred Qualifications:\nExperience with orbit maneuver design, Rendezvous and Proximity Operations (RPO), maneuver detection, conjunction assessment, or other advanced astrodynamics applications.\nExperience leveraging High Performance Computing (HPC), GPU-accelerated computing, or cloud-based environments for large-scale modeling and simulation.\nFamiliarity with astrodynamics and mission analysis tools such as STK, GMAT, FreeFlyer, Orekit, or similar software.\nPrior experience supporting IC, DoD, or other national security space missions.\nDemonstrated ability to present complex technical material to both technical and non-technical audiences, including senior Government decision-makers.\nPhysical Requirements:\nWork is primarily performed in an office or SCIF environment in Chantilly, VA.\nAbility to work at a computer for extended periods, including frequent use of keyboard, mouse, and display screens.\nOccasional lifting of items such as laptops, reference materials, or documentation up to approximately 20 pounds.\nAbility to participate in in-person meetings, briefings, and limited travel as required by the 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