Senior Principal RF Design Engineer

Date Posted: 2026-04-08 Country: United States of America Location: US-MA-MARLBOROUGH-MA2 ~ 1001 Boston Post Rd ~ BLDG 2 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required after day 1 At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world. Raytheon's Receiver/Exciter & Processing Architecture (REPA) Department is the focal point for receiver, exciter, beam steering, and signal processing technology within Raytheon. The department is responsible for the design, development, integration, and support to production builds, and lifecycle support of Raytheon products. We have an opportunity for a Senior Principal RF Design Engineer who is seeking to utilize their academic background and professional experience in RF / Microwave system theory and design to help develop the next generation of Raytheon’s Radar Receiver, Exciter, and Transmitter products. What You Will Do Architecture development, requirements analysis, hardware design, hands‑on testing of components, circuit card assemblies, and subsystems. Design and development of transmitters, receivers, or exciters. Design and optimization of RF circuits – either chains of components (receiver, exciter, etc.) or individual parts (filters, limiters, couplers, etc.). Working with interdisciplinary teams – power, digital, mechanical, etc. Schematic capture and RF routing. Technical support during the transition to production and support to production activities. Cost and schedule management plus proposal writing. This 1st shift position will be 100% on‑site & based in either Tewksbury, MA or Marlborough, MA, with travel between multiple MA sites anticipated. Qualifications You Must Have Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 10 years’ of prior relevant experience. Experience with Microwave/RF system, subsystem and/or component analysis, design and/or test. Experience with electromagnetic simulation tools (e.g., HFSS, ADS, CST, and/or Mentor Graphics’ Xpedition) and analytical tools (e.g., MATLAB). The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Qualifications We Prefer Experience working in design, from concept through production. Experience translating system performance and operation specifications into hardware requirements, design, and test specifications. Background in designing for manufacturability, producibility, and cost constraints, which includes yield and margin analysis. Problem‑solving skills with ability to proactively identify alternate solutions to overcome difficult technical challenges. Experience in technical writing and oral presentations. Technical background in any of the following areas: Cascade analysis and/or frequency planning Filter design and fabrication Circuit card assembly and fabrication High speed data converter test / characterization Low Noise RF source design and test experience What We Offer Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation. This position offers relocation based on candidate eligibility. The salary range for this role is 132,400 USD - 251,600 USD. Hired applicants may be eligible for benefits, including medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. #J-18808-Ljbffr