{"id":652348,"url":"https://alion.io/job/hermeus-senior-rf-systems-engineer","title":"Senior RF Systems Engineer","company":{"id":455980,"name":"Hermeus","domain":"hermeus.com","url":"https://alion.io/company/hermeus","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"A","score":91,"open_postings":64,"ghost_share":0,"stale_share":0.156,"repost_share":0,"time_to_fill_p50_days":113,"computed_at":"2026-10-14T06:34:16Z"}},"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":["Los Angeles, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":138550,"max":187450,"currency":"USD","period":"year","gross":null,"usd_annual":187450},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-01-22T17:31:05Z","employer_posted_date":"2026-01-22","last_verified_at":"2026-10-14T11:55:10Z","board_verified":true,"closed_at":null,"days_open":264,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":264},"description":"About The Role:\nAs an RF systems engineer you will be responsible for identifying RF hardware requirements, creating system architectures, and building/testing/integrating the RF solutions - both on the aircraft and ground station. This position will require strong fundamentals, wide-breadth design experience, and efficient troubleshooting skills. You’ll be responsible for high-ownership technical delivery while working with a multi-disciplinary team of engineering, manufacturing, and quality professionals.\nResponsibilities\nSimulate/model RF hardware for communication systems and sensors/instruments.\nDevelop test concepts and test procedures for RF and Environmental testing, including far field and near field measurements (plus vibration, shock, thermal and thermal vacuum).\nDefine hardware architecture and specifications for the RF system blocks, interfaces, and housing. Design, build and test microwave circuits and assemblies.\nEnd-to-end design validation and testing of RF product performance. Lead and conduct troubleshooting or root cause hardware performance challenges.\nWork with manufacturing and production teams on procuring and integrating quality RF module and antenna subsystems into our aircraft.\nPerform data analysis of RF systems, generate documentation/slides and present results to team.\nRequirements\nBachelor's degree in electrical engineering or related discipline.\n4+ years of professional experience designing and testing electrical, antenna and/or RF hardware and systems.\nExperience with RF/Antenna Systems in L/S/C/Ku and Ka-Band frequencies.\nPreferred Skills and Experience\nDemonstrated experience working collaboratively in cross-functional teams.\nStrong troubleshooting and problem diagnostic skills\nUnderstanding of electromagnetic propagation, impedance matching, Smith Chart, VSWR, P1dB, IIP3, NF, and etc. \nUnderstanding of digital modulation such as QAM, BPSK, QPSK, and SOQPSK or similar.\nExperience working with VNA, spectrum analyzers, RF power meters, and other relevant RF test equipment.\nExperience with test equipment automation and scripting\nStrong hands-on skills including prototyping/soldering and the use of a full range of instrumentation including multimeters, oscilloscopes, current meters, etc\nSupport ongoing regulatory filling including FCC, FAA, and AFTRCC.\nPrevious Experience on Integration and Test of an RF Systems (of any kind) with Radio as an integral part of RF Systems.\nMaster's degree with emphasis in Antenna, Electromagnetic theory and/or microwave circuits.\nExperience using in HFSS (or similar antenna simulation tools).\nFamiliarity with Antenna design, including types and tradeoffs.\nEMI/EMC testing per MIL-STD-461.\nPrior experience working on an airborne vehicle.\nExperience in a startup or agile development environment.\nExperience with Python or other scripting languages to aid automation, data analysis, etc\nAbility to travel on short notice to support test 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