Principal RF Electrical Engineer (ONSITE)

Company: RTX
Location: Marlborough
Posted on: April 3, 2026

Job Description:

Date Posted: 2026-02-11 Country: United States of America Location: US-MA-MARLBOROUGH-MA1 ~ 1001 Boston Post Rd ~ BLDG 1 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 Raytheon Company, Managed by Collins Aerospace Collins Aerospace, an RTX company, is looking for a Principal RF Electrical Engineer . The Hardware Engineering Center (HWEC) is an engineering organization that focuses on product producibility and mission assurance. It is a vital link in the integrated product development process that allows Collins Aerospace to introduce reliable new products faster, better, and more economically. The RF/Microwave Section is located in Marlborough, MA and is part of the Collins Aerospace Protected Communications Systems (PCS) business unit. This Section designs and tests RF and Microwave electronic hardware such as frequency references, fixed and agile frequency synthesizers, upconverters/exciters, downconverters/receivers, low noise amplifiers, and solid state power amplifiers for satellite communication and RADAR systems. Efforts include developing circuits using microstrip/stripline and performing circuit simulations and validation of design models using the Keysight Advance Design System (ADS) and Computer Simulation Technology (CST) at frequencies up to 50 GHz. Our designs satisfy rigorous requirements of Navy, Army, and Air Force programs. The Section also performs technical & cost trade studies, and product selection for commercially available components. All designs incorporate Design for Six Sigma (DFSS) and Design for Manufacturing & Assembly (DFMA) techniques including a high level of simulation and prototyping necessary to validate the simulations and to develop statistical margins. What You Will Do • Provide recommendations and solutions to a variety of technical problems of appropriate scope and complexity • Work independently or in small groups • Perform design tasks using RF simulation tools • Accept a requirement specification then develop, simulate, document, support, debug, and test various types of RF/Microwave circuit level / board level designs up to 50 GHz with first pass success • 5% domestic travel may be required Qualifications You Must Have • Extensive experience in simulating microwave circuits (including component & PWB parasitics) • Must be able to design, simulate, and test RF circuits up to 50 GHz using simulation tools; RF circuits include filters, amplifiers, phase locked loops, mixers, etc. • Experience with the following RF/Microwave building blocks: Amplifier, Analog-To-Digital Converter (A/D), Attenuator, Digital-To-Analog Converter (D/A), Direct Digital Synthesizer (DDS), Directional Coupler, Frequency Mixer, Lowpass/Bandpass/Highpass Filter, Oscillator, Power Divider, RF Switch, Voltage Controlled Oscillator (VCO) • Must have a complete understanding of the following RF/Microwave concepts & terminology: dB, dBc, dBm, Bandwidth, EIRP, G/T, Gain, Gain Compression, Intermodulation Products, Noise Figure, Phase Noise, Return Loss, Spurious, Third Order Intercept, and VSWR • Extensive experience using RF/Microwave test equipment such as a Network Analyzer with calibrations kits, Spectrum Analyzer, Signal Generator, RF Power Meter, Oscilloscope • Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience What We Offer • Medical, dental, and vision insurance • Three weeks of vacation for newly hired employees • Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option • Tuition reimbursement program • Student Loan Repayment Program • Life insurance and disability coverage • Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection • Birth, adoption, parental leave benefits • Ovia Health, fertility, and family planning • Adoption Assistance • Autism Benefit • Employee Assistance Plan, including up to 10 free counseling sessions • Healthy You Incentives, wellness rewards program • Doctor on Demand, virtual doctor visits • Bright Horizons, child and elder care services • Teladoc Medical Experts, second opinion program • This position is eligible for relocation assistance • And more! Learn More & Apply Now! Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today. *Please ensure the role type (defined below) is appropriate for your needs before applying to this role. ONSITE : Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other propel us all higher, again and again. Apply now and be part of the team that’s redefining aerospace, every day. Employee Referral Eligible 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

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