{"id":314103,"url":"https://alion.io/job/space-systems-integration-rf-systems-engineer","title":"RF 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":"B","score":73,"open_postings":18,"ghost_share":0.444,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":56,"computed_at":"2026-10-25T05:49:26Z"}},"role":"Hardware","role_family":"Hardware","seniority":"staff","employment_type":"full_time","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":230000,"currency":"USD","period":"year","gross":null,"usd_annual":230000},"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"TCP/IP","optional":false},{"name":"VLAN","optional":false}],"status":"live","first_seen_at":"2025-04-17T20:34:22Z","employer_posted_date":"2025-04-17","last_verified_at":"2026-10-25T16:38:09Z","board_verified":true,"closed_at":null,"days_open":555,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":555},"description":"SSI is seeking an RF Systems Engineer in Chantilly, VA, to provide Systems Engineering and Technical Advisory (SETA) services to a Government Intelligence Community (IC) customer. In this position, you will support advanced satellite communications and ground terminal solutions. This role requires deep technical expertise in RF systems engineering, SATCOM, and network integration to enable resilient, high-performance communication systems for mission-critical applications.\nKey Requirements\nPerform end-to-end RF systems engineering, including link budget analysis, signal propagation studies, EIRP, G/T calculations, and noise figure optimization.\nSupport the design, integration, and validation of SATCOM systems across GEO, MEO, and LEO satellite constellations and waveform technologies.\nApply knowledge of mesh networking concepts such as dynamic routing, frequency reuse, and latency optimization.\nDesign, develop, and integrate ground terminal systems including RF front-ends, BUCs, LNBs, antennas, modems, and related hardware.\nAnalyze and optimize waveforms including QPSK, 8PSK, 16QAM, and Forward Error Correction (FEC) schemes for spectral efficiency and link robustness.\nApply antenna theory and design principles to phased arrays, parabolic reflectors, flat panel antennas, and systems requiring beam steering, polarization control, and precision tracking.\nCollaborate on network protocol integration, ensuring smooth interoperability between SATCOM and terrestrial TCP/IP, VLAN, and QoS-based infrastructures.\nOperate and interpret results from RF lab test equipment, including spectrum analyzers, signal generators, and related diagnostic tools.\nUtilize Software Defined Radios (SDRs) and digital Intermediate Frequency (IF) architectures in both development and troubleshooting roles.\nRequired Qualifications\nMaster’s degree in Electrical Engineering, Telecommunications, or a related field and (ten) 10 or more years of experience.\nExtensive hands-on experience in RF systems design and SATCOM engineering.\nFamiliarity with ground terminal design and satellite communication subsystems.\nStrong working knowledge of modulation schemes, link budgets, and antenna system performance.\nExperience with RF lab measurement tools and SDR platforms\nMust possess an active Top Secret/SCI clearance and CI polygraph (polygraph within the last ten (10) years).\nWillingness to travel up to 10%\nPreferred Qualifications\nPrior experience supporting military or government communication systems.\nKnowledge of mesh networking, advanced waveform optimization, and spectrum management.\nExperience with digital IF, signal processing, and adaptive communications techniques.\nFamiliarity with non-traditional RF sensing technologies and methodologies.","description_format":"text","description_chars":2751,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"master","optional":false},"security_clearance":true,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Space Services","Engineering 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