Senior RF Design Engineer

RTX (Raytheon); North Tewksbury (MA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Relocation assistance

Onsite work in MA

Job summary

RTX, a leading aerospace and defense company, seeks an electrical engineer with strong RF design and AESA experience. You will design and test microwave components and phased arrays, lead design activities, and collaborate with production teams in onsite environments across MA locations.

A solid academic background in microwave theory and hands-on testing is required. Ideal candidates have experience with HFSS, Cadence Virtuoso and Matlab, plus the ability to communicate findings clearly and

Qualifications

• Degree in STEM with 5+ years of relevant RF design experience or an advanced degree with 3+ years.
• Experience with Microwave/RF system analysis, design and test.
• Proficiency in HFSS/ADS/CST and Cadence Virtuoso tools.

Responsibilities

• Design RF/microwave components and phased array systems for defense applications.
• Lead testing and integration of CCAs, MMICs and modules at RF frequencies.
• Provide technical support to production and program teams.
• Prepare proposals, manage costs and schedules, and present results to stakeholders.
• Travel to integration sites and partner facilities as needed.

Skills

Microwave design

RF system knowledge

Team leadership

Technical writing

Effective communication

Education

Bachelor's degree in STEM fields

Advanced degree in Electrical Engineering (MS/PhD)

Tools

HFSS

ADS

CST

Mentor Graphics Xpedition

Cadence Virtuoso

MATLAB

Job description

Date Posted: 2026-10-14

Country: United States of America

Location: US-MA-TEWKSBURY-TB1 ~ 50 Apple Hill Dr ~ ASSABET 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: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world's most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Raytheon brings 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. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

We have an opportunity for an electrical engineer who is seeking to utilize their strong academic background and experience in RF Design theory and design and testing, including architectures, subsystems, components and Active Electronically Steered Antennas (AESAs). The successful candidate will employ their working knowledge of Circuit Card Assemblies (CCAs) and analytical skills in electromagnetic and microwave theory.

Responsibilities include design and hands‑on testing of microwave components, cards and systems plus providing technical support to production activities. Team leadership skills including cost and schedule management plus proposal writing and presentation experience are desired.

This is an onsite position at one of the following Massachusetts locations - Andover, Tewksbury, or Marlborough. Location assignments will be made based on business or program need.

What You Will Do

• Design of RF microwave components and phased array applications
• Develop insights that extend your knowledge in the RF/Microwave field and form the basis of new concepts, theories, and products.
• Design and/or test MMIC or module products and test fixtures at RF/microwave frequencies
• Integration and test of component level and system level phased array hardware
• Some travel to integration sites, plus customer and subcontractor facilities, may be required.

Qualifications You Must Have

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience or an Advanced Degree in a related field and minimum 3 years experience.
• Experience in Microwave/RF system, subsystem and/or component analysis, design and/or test.
• Experience with an electromagnetic simulation tool such as HFSS, ADS, CST, Genesys and Mentor Graphics' Xpedition Cadence Virtuso, and an analytical tool such as Matlab.
• Experience performing basic RF calculations and Cascaded Analysis.

Qualifications We Value

• Background designing and testing analog CCAs, including frequency conversion, automatic gain control, amplifier design and analog filter design.
• Experience in electrical interconnects and transmission line design.
• Understanding of RF layout techniques from HF to X-Band.
• Understanding of EMI analysis and mitigation techniques.
• Propensity for learning through self-study and being comfortable in a multi-tasking environment.
• Excellent written and oral communication skills.
• Understanding of allocating and flowing down requirements from the system to the component level.
• Experience designing RF/Microwave MMIC circuits, modules or test fixtures.
• Experience with GaAs and/or GaN MMIC devices.
• Experience with integrated circuit layout and physical verification using Cadence Virtuoso software tools.
• Familiarity with semiconductor processing and concepts, e.g. technologies like GaAs, GaN, SOI.
• Strong academic background that includes courses in: Microwave Engineering, Microwave Systems, Electromagnetic Theory and Radar Systems.
• Strong hands‑on experience with microwave testing techniques, including using spectrum analyzers, Real‑time Spectrum Analyzers (RSAs), Vector Network Analyzers (VNAs) and Performance Network Analyzer (PNAs).
• Experience in technical writing, proposal writing, and oral presentations.
• Master's degree in Electrical Engineering OR PhD degree in Electrical Engineering is a plus

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.

Relocation Eligible - reloca