Senior Principal IFFA Engineer

Date Posted:

2025-11-04

Country:

United States of America

Location:

MA131: Tewksbury, MA Bldg 1 Assabet 50 Apple Hill Drive Assabet - Building 1, Tewksbury, MA, 01876 USA

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:

DoD Clearance: Secret

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. 

We have an opportunity for a senior principal electrical engineer who is seeking to utilize their strong academic background and experience in RF/Microwave system theory and design, including architectures, subsystems, components of Identification Friend or Foe Arrays (IFFAs). The successful candidate will employ their working knowledge of IFFA to be a subject matter expert for design updates, IFFA production, and support to resident and fly away teams.

What You Will Do

• Provide technical assistance to Raytheon sub-IPT Leads, Tech Lead / RF Engineer / SME, Mechanical Engineer, Test Engineer, Quality Engineer, and support to customers in the form of documentation, instrumentation, training, and other technical assistance.
• Continued technical knowledge of IFFA build, operation, test, analysis, documentation, troubleshooting, dealings with suppliers (especially mandated U.S. Suppliers)
• Participate/assist in training other IFFA personnel.
• Travel to local integration sites and subcontractor facilities.

Qualifications You Must Have

• Bachelor of Science degree in Science, Technology, Engineering, or Mathematics (STEM)
• Typically requires a minimum of 10 years of relevant experience combined in the following areas:
  • Antenna or radar analysis and hardware design and test
  • Integration and Test experience of developed hardware
  • RF & Microwave System, Subsystem, Circuit, and Component Design, Analysis, & Measurement
  • Product Development
  • Experience transitioning products to production

Qualifications We Prefer

• Experience in Electromagnetic theory and Data analysis
• Familiarity with Corporate Feeds, Beamformers, Couplers, & other Microwave structures
• Familiarity with Stacked Patch antenna elements and Phased Array Architecture
• Familiarity with RF PWB/CCA Design
• 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)
• Strong academic background that includes courses in: Microwave Engineering, Microwave Systems, Electromagnetic Theory and Radar Systems
• Hands-on experience with electromagnetic/RF simulation tools such as HFSS, ADS, CST, and analytical tools such as MATLAB and Excel

• 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
• Knowledge of cost estimating, plus budget and schedule management
• Experience in a production environment
• Experience in technical writing, proposal writing, and oral presentations
• Existing Secret clearance or ability to obtain a secret clearance with interim clearance
• RF troubleshooting
• Test & measurement – RF/Microwave circuits and structures and antennas, using Vector Network Analyzers and other RF/Microwave test equipment
• Experience in product development and production of RF/Microwave subsystems
• System/Subsystem Integration and Test

What We Offer

Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: 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 securi