{"id":455220,"url":"https://alion.io/job/sierra-nevada-corporation-rf-engineer-iii-e3","title":"RF Engineer III - E3","company":{"id":98067,"name":"Sierra Nevada Corporation","domain":"sncorp.com","url":"https://alion.io/company/sierra-nevada-corporation","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":79,"open_postings":87,"ghost_share":0,"stale_share":0.816,"repost_share":0.023,"time_to_fill_p50_days":34,"computed_at":"2026-11-05T05:54:30Z"}},"role":"Hardware","role_family":"Hardware","seniority":"middle","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Plano, United States","United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":90000,"max_usd":173000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":664},"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ANSYS","optional":false},{"name":"Ansys HFSS","optional":false},{"name":"CAPA","optional":false},{"name":"MATLAB","optional":false},{"name":"MIL-STD-461","optional":false},{"name":"Python","optional":false},{"name":"TEMPEST","optional":false}],"status":"live","first_seen_at":"2026-08-13T00:00:00Z","employer_posted_date":"2026-08-13","last_verified_at":"2026-11-05T09:40:59Z","board_verified":true,"closed_at":null,"days_open":84,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":84},"description":"The ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR and aviation, it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation systems. Its end-to-end Command, Control, Computers, Communications and Intelligence, Surveillance & Reconnaissance (C4ISR) capabilities encompass design, integration, test, certification, ground/flight training and complete logistics support. IAS tailors solutions to customer cost, performance, and schedule requirements and designs to consistently exceed expectations - with an unrivaled record of on time and on (or under) budget deliveries.SNC has led thoughtful and disruptive change in the aerospace and defense industry for the past 60 years and now, we’re applying this tenacity and expertise to the U.S. Air Force’s (USAF) Survivable Airborne Operations Center (SAOC) mission. Join the SNC-led SAOC team and be a part of exciting and meaningful work to modernize and deliver the next-generation SAOC aircraft trusted by the President, Secretary of Defense and Chairs of the Joint Chiefs of Staff to ensure continued critical command, control and communication during national emergencies. If you’re passionate about building the airborne command post of the future, consider SNC for your next mission. Learn more about NC3 and SAOC here.\nAre you ready to unleash your technical creativity? Dream, Innovate, Inspire and Empower the next generation to transform humanity through technology and imagination! As an Radio Frequency (RF) Engineer III, you will lead the design, development, and testing of sophisticated RF systems for advanced aerospace and defense applications. You will have a significant impact on RF front-end design, radio propagation modeling, and microwave path analysis, ensuring the delivery of high-performance products.Responsibilities:\nPerform Electromagnetic Environmental Effects (E3) analysis\n\nCompile an Electromagnetic Environmental Effects Integration Analysis Report (E3IAR)\n\nCompile an Electromagnetic Interference Control Plan (EMICP)\n\nCompile Electromagnetic Interference Test Plan (EMITP)\n\nCompile Electromagnetic Interference Test Report (EMITR)\n\nSupport TEMPEST control plan and test plan creation\n\nSupport High-altitude Electromagnetic Pulse (HEMP) analysis\n\nPerform Co-site analysis\n\nSupport MIL-STD-464 and MIL-STD-461 requirements allocations\n\nQualifications You Must Have:\nBachelor’s degree in Electrical Engineering or related field.\n\n6+ years of experience in RF/E3 engineering or a related role.\n\nHigher level relevant degree may substitute for experience.\n\nProficiency in RF/E3 design and testing techniques.\n\nBasic understanding of engineering principles and practices, including various RF/E3 modeling, analysis techniques, and tools.\n\nExperience working in multi-disciplinary design & development teams.\n\nQualifications We Prefer:\nExperience with advanced RF/E3 simulation tools.\n\nUnderstanding of aerospace and defense industry standards.\n\nKnowledge of industry standard RF principles as they apply to design, analysis, and test.\n\nUnderstanding of techniques to perform RF analysis such as Co-site, E3 integration, link budgets, and antenna patterns.\n\nExperience with analysis software applications such as ANSYS HFSS, ANSYS EMIT, ANSYS SAVANT/SBR+, CST, EMA3D EMC+ /Charge+, Python and MATLAB.\n\nCapable of developing substantiation documentation to demonstrate compliance to related requirements and industry standards to include test plans/reports, analysis documents, and compliance checklists.\n\nExperience with RF test equipment such as Vector Network Analyzers, Spectrum Analyzers and Signal Generators.\n\nKnowledgeable of industry standard RF assemblies and component selection and developing technical specifications.\n\nEssential Functions:\nAbility to work on a computer for extended periods.\n\nAbility to travel as required.\n\nAbility to work in an office or hybrid environment.\n\nMust be able to lift up to 25 lbs occasionally.\n\nAnalyze failure data, reports, and root cause analysis to identify and document issues accurately.\n\nEvaluate different approaches to failure analysis and selecting the most appropriate methods for effective resolution.\n\nMake informed decisions based on data and analysis to recommend corrective and preventive actions.\n\nAbility to handle small components, tools, and equipment with precision.\n\nAbility to read and interpret technical documents, failure analysis reports, and computer screens accurately.\n\nThis posting will be open for application for a minimum of 5 days and may be extended based on business needs.\nSNC offers a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, tuition reimbursement, and more.\nIMPORTANT NOTICE:\nThis position requires the ability to obtain and maintain a Secret U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment. Non-U.S. citizens may not be eligible to obtain a security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance eligibility process for industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations and illegal drug use.Learn more about the background check process for Security Clearances. \nSNC is a global leader in aerospace and national security committed to moving the American Dream forward. We’re known and respected for our mission and execution focus, agility, and disruptive and rapid innovation. We provide leading edge technologies and transformative solutions that support our nation’s most critical security needs. If you are mission-focused, thrive in collaborative environments, and want to make our country stronger with state-of-the-art technologies that safeguard freedom, join our team!\nSNC is an Equal Opportunity Employer committed to an environment free of discrimination. 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