Principal RF Module Design/Development Engineer

RTX (Raytheon); Lowell (MA); On-site; USD 108,000 - 205,000; Full time

Benefits offered by this job

Medical, dental, vision

401(k) match

Paid time off

Job summary

RTX is seeking an experienced Principal RF Module Design/Development Engineer to join the RF Microelectronics/Module Development & Foundry Services team. The role focuses on designing power combining structures for MMIC-enabled modules used in radar systems, with strong emphasis on RF/Microwave design, development, integration, and testing.

The candidate will perform 3D electromagnetic simulations, troubleshoot in production, and collaborate across RF module design, MMIC design, and assembly

Qualifications

• BS degree in STEM field required.
• Eight years or more experience in Microwave/RF module design, analysis, and test.
• Hands-on experience with electromagnetic simulation tools such as HFSS, ADS, CST.

Responsibilities

• Design RF structures and transitions on multi-layer RF modules and analog circuitry.
• Perform 3D electromagnetic simulations of power combining and RF structures.
• Troubleshoot RF modules prototyped and under development; collaborate across design and assembly teams.

Skills

RF/Microwave design

EM simulation

Collaborative skills

Education

BS in STEM field

MS/PhD preferred

Tools

HFSS

ADS

CST

Job description

Date Posted: 2026-09-15

Country: United States of America

Location: US-MA-ANDOVER-AR1 ~ 358 Lowell St ~ AR1 DUKES 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 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.

Job Summary:

An exciting opportunity exists for an experienced Principal RF Module Design/Development Engineer to join our Module Development Section within the RF Microelectronics/Module Development & Foundry Services (RFMicro) Department. The RFMicro department designs, fabricates, and tests state-of-the‑art Monolithic Microwave Integrated Circuits (MMICs) in our on‑site foundry. These chips are designed into custom modules to support multiple programs and enhance the capabilities of next generation radar systems. The successful candidate will be responsible for designing power combining structures, capabilities and transitions for RF/microwave modules containing GaAs- and GaN‑based MMIC products. This would be in active support of existing technologies in production as well as next‑generation products in development. This position requires a strong academic background and experience in RF/Microwave Design, Development, Integration & Test.

What You Will Do:

• Designing RF structures and transitions on multi‑layer, multi‑channel RF Modules and analog circuitry enabling both receive and transmit behavior.
• 3D electromagnetic simulations of power combining and other RF structures.
• Troubleshooting RF Modules that are prototyped and under development.
• Collaborating across RF module design, MMIC design and assembly teams

Qualifications You Must Have:

• BS degree in a Science, Technology, Engineering & Math (STEM) Field.
• Eight (8) or more years of relevant experience (An advanced STEM degree could count for 3 years of experience) in Microwave/RF module, subsystem and component analysis, design, and test.
• Hands‑on experience with electromagnetic simulation tools such as HFSS, ADS, CST.
• The ability to obtain and maintain a US security clearance. U.S. citizenship is required as only U.S. citizens are eligible for a security clearance

Qualifications We Prefer:

• A Master's degree or PhD. in a Science, Technology, Engineering & Math (STEM) Field.
• Experience in module/sub‑system assembly & packaging process.
• Experience in thermal modeling and analysis.
• Experience of different topology trade‑offs, process and active/passive component selection, system/sub‑system level, gain‑loss analysis and flowing down requirements from the system to the component level.
• Layout experience in Mentor Graphics' Xpedition, Cadence Virtuoso or AutoCAD.
• Experience with analytical tools such as Matlab, Python, or JMP.
• Understanding of allocating and flowing down requirements from the system to the component level.
• Experience in a production environment.
• Experience with microwave testing techniques, including using spectrum analyzers, Real‑time Spectrum Analyzers (RSAs), Vector Network Analyzers (VNAs) and Performance Network Analyzer (PNAs).
• Experience with GaAs and/or GaN MMIC devices.
• Experience leading teams and/or projects.
• Current DoD Secret level security clearance

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.

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 holi