{"id":795044,"url":"https://alion.io/job/cx2-rf-hardware-engineer","title":"RF Hardware Engineer","company":{"id":173498,"name":"CX2","domain":"cx2.com","url":"https://alion.io/company/cx2","size_band":"11-50","is_staffing_agency":false,"is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":null},"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":["El Segundo, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":160000,"max":200000,"currency":"USD","period":"year","gross":null,"usd_annual":200000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Machine Learning","optional":false},{"name":"C++","optional":true},{"name":"MATLAB","optional":true},{"name":"NumPy","optional":true},{"name":"Python","optional":true},{"name":"SciPy","optional":true},{"name":"Simulink","optional":true},{"name":"Xilinx Vivado","optional":true}],"status":"live","first_seen_at":"2026-02-03T22:27:44Z","employer_posted_date":"2026-02-03","last_verified_at":"2026-09-25T03:22:17Z","board_verified":true,"closed_at":null,"days_open":233,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":232},"description":"CX2 is seeking a skilled RF Hardware Engineer to join our growing team. The ideal candidate will have experience in designing, testing and building RF Systems (Tx / Rx) for RF signals (ex. communications, RADAR, navigation) UHF through X-Band.\nThis role requires an onsite presence in our El Segundo, CA HQ; a remote work environment is not considered for this opportunity.\nKey Responsibilities\nDesign, validate & deliver RF payload subsystems: Design, Integration and Testing of Antennas, RF front ends, SDRs and provide validation of operation. Support development and analysis of RF performance metrics.\nOwn requirements, ICDs, and verification from concept through delivery\nStay current: Track and insert advances in relevant technologies, SDRs, RF Systems, RF machine learning, and PNT.\nQualifications\nBS/MS in Electrical Engineering, Computer Engineering, or related field\nAntenna and receiver design across analog/RF/mixed-signal domains: mixers, PLLs/LOs, gain/linearity/noise trades; ability to turn simulations into reality.\nChannelizers & wideband architectures: filter banks, analog/digital down conversion, sample-rate planning, clocking/synchronization.\nWillingness to support critical test events that occasionally require extended hours/weekends\nAbility to obtain and maintain a security clearance\nMust be a U.S. Person (see ITAR Regulations below) due to required access to U.S. export-controlled information or facilities\nBonus Points\nPhD in Electrical Engineering, Computer Engineering, or related field\n5+ years’ experience with EW subsystems and payloads\nEA/ECM technique design (deception, Digital RF Memory, coherent/non-coherent techniques)\nDigital Signal processing: Design characterize and deliver channelizers, wideband detection/classification, MIMO/digital-arrays, and algorithms in MATLAB/Python/C++\nCommunication / Waveform system design\nRF machine learning for emitter ID, modulation/classification, anomaly detection, PDW creation\nTools Experience: ADS/AWR/SystemVue, MATLAB/Simulink, Python (NumPy/SciPy), GNU Radio/SDR (USRP/RFSoC), VITA-49; HDL/firmware experience; also helpful (Vivado/Quartus/Libero).\nClearance: Active Secret or ability to obtain and maintain; TS/SCI eligibility preferred. ITAR/EAR-controlled work. Learn more about Security Clearances here.\nField work: supporting periodic travel for flight tests and customer demonstrations/support\nMindset: Builder-tester who loves first-principles RF, rapid lab iteration, and getting hardware flying fast\nWhat We Offer\nCompetitive salary, stock options and benefits, including health, vision and dental.\n401K enrollment at 90 days.\nGenerous PTO + most Federal Holidays observed.\nCollaborative and inclusive work environment.\nAccess to the latest tools and technologies.\nHigh levels of responsibility and autonomy.\nProfessional growth and development opportunities.\nAccess to the hardest problems in electronic warfare.\nITAR Regulations\nTo conform to U.S. Government export regulations, applicant must be a US Citizen, Green Card holder, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.","description_format":"text","description_chars":3151,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["401k plan","Stock options"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Military","Military Communication"],"lifecycle":[{"event":"open","at":"2026-09-12T04:56:51Z"}],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.241,"p_room":0.28,"age_days":232,"expected_fill_days":30,"reasons":["conf:7","win:tail","crowd:"],"computed_at":"2026-09-24T05:45:00Z"},"pay":{"stated_usd_annual":200000,"is_top_pay":false},"html_url":"https://alion.io/job/cx2-rf-hardware-engineer","json_url":"https://alion.io/job/cx2-rf-hardware-engineer.json","meta":{"generated_at":"2026-09-25T03:46:26Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":4100,"day_limit":5000,"remaining_today":900,"minute_limit":60,"resets_at":"2026-09-26T00:00:00Z"}}}