{"id":1948412,"url":"https://alion.io/job/saic-senior-principal-radar-signals-engineer","title":"Senior Principal Radar Signals 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":56,"ghost_share":0,"stale_share":0.911,"repost_share":0,"time_to_fill_p50_days":16,"computed_at":"2026-10-21T05:46:15Z"}},"role":"Hardware","role_family":"Hardware","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":["Chantilly, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":158000,"max_usd":300000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":609},"experience_years_min":14,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"HPC","optional":false},{"name":"MATLAB","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-09-24T19:42:01Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-10-21T06:40:56Z","board_verified":true,"closed_at":null,"days_open":26,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":26},"description":"SAIC is hiring a Senior Principal Radar Signals Engineer to join a mission-driven analysis team in Chantilly, VA supporting multiple satellite programs at the forefront of national innovation. This team is advancing novel satellite missions that directly support national priorities, operating within a highly engaged Government environment with frequent access to senior Government decision-makers. The engineer will lead modeling, simulation, and analysis of satellite-tracking radar systems for satellites in a wide range of Earth orbits, collaborating with experts in propulsion, optics, AI/ML, cloud, GPUs, and astrodynamics.\nResponsibilities include, but are not limited to:\nDesign and analyze satellite-tracking radar signals, waveforms, and signal processing algorithms to support detection, acquisition, tracking, and characterization of space objects.\nPerform antenna design and analysis, including performance modeling and trade studies, to optimize radar system effectiveness against satellite targets in LEO, MEO, & GEO\nDevelop and apply modeling and simulation tools to evaluate end-to-end radar performance and mission concepts, leveraging Python, C++, MATLAB, or similar tools and high-performance computing resources.\nConduct independent trade studies and technical assessments, and review/validate algorithms, models, and analysis results from internal and external teams.\nCollaborate with a multi-disciplinary team (astrodynamics, optical sensing, AI/ML, cloud/HPC) to simulate mission operations concepts at scale and provide integrated, actionable insights to customers.\nDevelop and present clear, technically rigorous briefings and recommendations to senior Government customers and internal stakeholders.\n(Optional) Perform radar return modeling using 3D satellite models to support characterization and concept-of-operations analyses.\n Bachelor’s degree in Electrical Engineering, Applied Mathematics, Physics, or a related technical field and 14+ years of relevant experience;\nOR Master’s degree and 12+ years of relevant experience;\n\nOR PhD (or JD with directly relevant technical experience) and 9+ years of relevant experience.\n\nDemonstrated experience with target-tracking radar signals, including signal design and digital signal processing for detection, tracking, and characterization.\n\nStrong foundation in electrical engineering, advanced mathematics, and digital signal processing (DSP).\n\nProficiency with Python, C++, MATLAB, or similar languages for modeling, simulation, and analysis of radar or RF systems.\n\nProven experience conducting independent technical analyses, trade studies, and assessments, and documenting results in technical reports or briefings.\n\nAbility to work effectively in a multi-disciplinary team environment, and to communicate complex technical topics clearly to both technical and non-technical stakeholders.\n\nClearance Requirements:\nActive TS/SCI clearance with the ability to obtain and maintain a Polygraph.\n\nMust be willing and able to work onsite in Chantilly, VA in a classified environment.\n\nPreferred Qualifications:\nExperience with space domain awareness (SDA), space surveillance, or satellite-tracking radar systems.\n\nBackground in antenna design, phased arrays, or RF front-end architectures for radar systems.\n\nExperience modeling radar performance against satellites in varied orbital regimes, including consideration of clutter, interference, and environmental effects.\n\nFamiliarity with high-performance computing (HPC) environments, GPU-based processing, or cloud-based modeling and simulation workflows.\n\nExperience working directly with senior Government customers, including preparing and delivering technical presentations and recommendations.\n\nPrior experience in a lead, principal, or subject-matter-expert role, including mentoring junior engineers or analysts.\n\nPhysical Requirements:\nWork is primarily performed in an office, laboratory, or classified facility environment.\n\nAbility to work at a computer workstation for extended periods, including frequent use of standard office and IT equipment.\n\nOccasional walking, standing, and movement between offices, conference rooms, and secure areas.\n\nAbility to participate in on-site meetings and briefings, which may require extended periods of sitting and 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