Principal Antenna Design Engineer at RTX in McKinney, TX

Principal Antenna Design Engineer Location: US-TX-MCKINNEY-513WD ~ 2501 W University Dr ~ WING D BLDG Date Posted: 2026-05-09 Country: United States of America Location: US-TX-MCKINNEY-513WD ~ 2501 W University Dr ~ WING D BLDG Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.​ 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 on 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. Our Airborne Antennas, Radome & Apertures team is recognized across the defense community as one of the most capable antenna and low observable (LO) engineering groups in the United States. Our engineers tackle some of the world’s toughest RF, antenna, and aperture challenges. We design high performance, highly integrated, mission critical antennas, radomes, and active electronically scanned arrays (AESAs). We are seeking a Principal Antenna Design Engineer to drive the development of advanced LO antennas, ultra‑wideband phased arrays, and next‑generation survivability technologies for demanding systems. This role is ideal for senior engineers who want to work on programs with national‑level importance and who excel at both deep technical analysis and hands‑on engineering leadership. This position requires job duties to be performed onsite due to the sensitive nature of this work and the desire for in-person collaboration; however, we offer flexible in-office hours and the ability to perform some job duties remotely. What You Will Do Provide technical leadership on the design, modeling, realization, and verification of advanced Low Observable antennas, conformal apertures, ultra‑wideband phased arrays, and passive RF structures. Provide technical solutions to a wide range of difficult problems involving antenna/sensor-based applications such as radar, electronic warfare, electronic attack, electronic support measures, communications, geolocation, direction finding, etc. Lead design teams through architecture trades, detailed EM analysis, LO strategy development, and integration of antenna, RCS, structural, and thermal requirements. Use full‑wave computational EM tools (HFSS, CST, FEKO, SENTRi, X‑Patch or equivalent) to model antenna performance, RCS signatures, aperture interactions, and airframe‑coupled electromagnetic effects. Develop and refine antenna and LO design concepts considering gain, VSWR, bandwidth, field of view, scan performance, polarization purity, structural constraints, and signature objectives. Guide the verification and validation of antenna and RF  erformance, including gain/pattern testing, polarization, insertion loss, and RCS measurement campaigns. Collaborate with systems engineering to define RF, RCS requirements; develop operational concepts; and support architecture‑level trade studies. Translate system‑level needs into antenna level requirements, specifications, and verification plans with clear traceability. Work hands on with Operations, Assembly, and Test personnel to fabricate prototypes, debug hardware, optimize builds, and support manufacturing and qualification. Mentor both peers and early‑career engineers in advanced EM modeling, LO techniques, prototyping and range testing. Present complex technical findings to internal leadership, external customers, and program stakeholders with clarity and authority. Contribute to technical proposals, concept generation, and competitive strategy for new business pursuits. Execute tasks requiring creativity, innovation, and independent technical judgment on high‑visibility programs. Establish and maintain effective working relationships with internal and external customers. Represent the organization in providing solutions to difficult technical issues associated with specific projects. Qualifications You Must Have Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM) and minimum of eight (8) years of relevant RF engineering experience including any combination of the following: Radar Cross Section (RCS) modeling, prediction, measurement, or reduction Design, fabrication, and test of conformal antennas, phased array apertures, or RF passive components (radiators, radomes, couplers, transitions, multi‑layer RF structures, FSS) Ultra‑wideband phased array development (TCDA, Vivaldi, Sliced‑Notch, PUMA, or similar) Experience with EM modeling tools such as HFSS, CST, FEKO, SENTRi, X‑Patch, or related CEM software. Experience with leading technical tasks or project teams through design, analysis, build, and / or test. Qualifications We Prefer Master’s or PhD in Electrical Engineering with a concentration in electromagnetics, antennas, survivability, or microwave engineering. Experience presenting complex technical data to leadership, customers, and engineering review boards. Experience preparing and leading technical proposal efforts. Experience leading contract R&D (CRAD) or advanced development programs Familiarity with structural, thermal, materials, or coatings relevant to LO apertures Ability to mentor and guide multidisciplinary teams on high‑impact programs. Why Join Raytheon’s Airborne Antenna Radomes and Apertures Team Work on antennas that go onto real platforms and deliver real‑world mission impact. Access to one of the broadest ranges of antenna technologies in industry (AESA, UWB, LO, conformal, EW, comms, radar, sensing). Deep technical career growth supported by nationally recognized experts. Collaborative environment with multidisciplinary engineering excellence. 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. Learn More & Apply Now! This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. The salary range for this role is 107,500 USD - 204,500 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Hired applicants may be eligible for benefits, including but not limited to, 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. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance. This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window. 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. Privacy Policy and Terms: Click on this link to read the Policy and Terms