{"id":2735954,"url":"https://alion.io/job/leidos-senior-rfantenna-engineer","title":"Senior RF/Antenna Engineer","company":{"id":7791,"name":"Leidos","domain":"leidos.com","url":"https://alion.io/company/leidos","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":80,"open_postings":173,"ghost_share":0.006,"stale_share":0.798,"repost_share":0.006,"time_to_fill_p50_days":27,"computed_at":"2026-10-17T05:46:00Z"}},"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":["Saint Petersburg, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":87100,"max":157450,"currency":"USD","period":"year","gross":null,"usd_annual":157450},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"MATLAB","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-05-11T00:00:00Z","employer_posted_date":"2026-05-11","last_verified_at":"2026-10-18T05:13:21Z","board_verified":true,"closed_at":null,"days_open":160,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":160},"description":"The Defense Systems Group at Leidos has an immediate opening for a Senior RF / Antenna Engineer at our St. Petersburg, FL facility. This position supports the development, integration, and testing of advanced RF and phased array antenna systems for mission-critical defense applications.\nIn this role, you will contribute to the architecture, design, analysis, and integration of complex RF antenna systems supporting Department of Defense and national security customers. You will collaborate with multidisciplinary engineering teams and interface with systems engineering, program leadership, and customers to deliver innovative solutions for challenging operational environments.\nThe St. Petersburg facility specializes in the design, modeling and simulation, prototyping, integration, and testing of advanced electronic systems, with a focus on embedded communications systems, Software Defined Radios (SDR), phased array antenna systems, and secure RF architectures operating in contested and denied environments.\nKey Responsibilities\nDesign, analyze, and optimize RF and antenna subsystems.\nPerform electromagnetic simulations and validate performance through laboratory and field testing.\nSupport system architecture development and RF link analysis.\nDevelop antenna concepts and perform trade studies for performance, size, weight, and power constraints.\nConduct RF measurements, debugging, and performance characterization.\nSupport integration of RF hardware into larger system architectures.\nPrepare technical documentation, test reports, and engineering presentations.\nCollaborate with systems, mechanical, digital, and software engineering teams.\nParticipate in design reviews and technical assessments.\nSupport proposal efforts and customer technical discussions as needed.\nClearance Qualifications\nU.S. Citizenship required.\nAbility to obtain and maintain a Secret Security Clearance.\nWillingness to work in classified laboratory environments and support secure development, integration, and test activities.\nAbility to comply with all program-specific security requirements, including handling of classified materials and controlled technical data (ITAR/EAR).\nBasic Qualifications\nBachelor’s degree in Electrical Engineering, Electromagnetics, Physics, or related technical discipline with 4-8 years of relevant experience; OR\nMaster’s degree in Electrical Engineering, Electromagnetics, Physics, or related technical discipline with 2-6 years of relevant experience.\nStrong understanding of RF and microwave engineering fundamentals.\nExperience with antenna design, analysis, and testing.\nFamiliarity with electromagnetic simulation and modeling tools such as HFSS, CST, FEKO, ADS, or similar.\nExperience with RF test equipment including VNAs, spectrum analyzers, signal generators, power meters, and oscilloscopes.\nKnowledge of RF propagation, impedance matching, link budgets, and system-level RF performance.\nAbility to analyze technical data and troubleshoot RF system issues.\nStrong written and verbal communication skills.\nAbility to work effectively in a collaborative engineering environment.\nU.S. citizenship required.\nPreferred Qualifications\nExperience supporting DoD, aerospace, defense, or government programs.\nExperience supporting phased array or advanced antenna system development efforts.\nFamiliarity with planar or conformal array architectures and beamforming concepts.\nFamiliarity with antenna measurement techniques including near-field and far-field testing.\nProficiency with electromagnetic simulation and modeling tools such as HFSS, FEKO, CST, or equivalent, and familiarity with MATLAB or similar analysis tools.\nExperience with phased arrays, beamforming, EW systems, radar systems, SATCOM, or tactical communications.\nFamiliarity with mutual coupling effects, scan performance, sidelobe control, and array calibration principles.\nExperience designing wideband, multi-band, or conformal antennas.\nKnowledge of EMI/EMC principles and testing.\nExperience with MATLAB, Python, or other scripting/analysis tools.\nFamiliarity with RF PCB design and microwave components.\nActive Secret or Top Secret clearance preferred.\nIf you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.\nOriginal Posting:\nMay 11, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.\nPay Range:\nPay Range $87,100.00 - $157,450.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.","description_format":"text","description_chars":5234,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Equity"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["National Security","C4ISR","Defense Manufacturing","Engineering Services"],"lifecycle":[{"event":"open","at":"2026-10-16T19:05:38Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 50 · green card filings: 24","filings_12m":50,"filings_prev_12m":58,"green_card_filings_12m":24,"median_offered_wage_usd":124257,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":0}],"liveness":{"score":6,"band":"cold","label":"Long shot","p_open":1,"p_active":0.215,"p_room":0.28,"age_days":159,"expected_fill_days":27,"reasons":["conf:1","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":157450,"is_top_pay":false},"html_url":"https://alion.io/job/leidos-senior-rfantenna-engineer","json_url":"https://alion.io/job/leidos-senior-rfantenna-engineer.json","meta":{"generated_at":"2026-10-18T06:11:42Z","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":9316,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"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":7791},"rest":"https://alion.io/mcp/rest/get_company?id=7791"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fleidos-senior-rfantenna-engineer"},{"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%2Fleidos-senior-rfantenna-engineer"},{"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%2Fleidos-senior-rfantenna-engineer"},{"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/leidos-senior-rfantenna-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fleidos-senior-rfantenna-engineer"}]}