Demo

Principal Antenna/RF Engineer

BAE Systems
BAE Systems Salary
Merrimack, NH Full Time
POSTED ON 5/6/2026
AVAILABLE BEFORE 7/5/2026

Job Description
BAE Systems is seeking a Principal LO Antenna Design Engineer to work in our Merrimack, NH location in a Hybrid role that will require mostly on site collaboration with a larger team.

You don’t see it, but it’s there. Our employees work on the world’s most advanced electronics – from saving emissions in the City of Lights to powering the Mars Rover to protecting the F-35 fighter jet. At Electronic Systems, you’ll be among the brightest minds, working on the aerospace and defense industry’s most difficult problems. Drawing strength from our differences, we’re innovating for the future. And you can, too. Our flexible work environment provides you a chance to change the world without giving up your personal life. We put our customers first – exemplified by our missions: “We Protect Those Who Protect Us®” and “We Innovate For Those Who Move The WorldTM.” Sound like a team you want to be a part of? Come build your career with BAE Systems.


The candidate’s primary activity will be to lead Antenna technical teams in the development, design, analysis, test, and manufacture of LO Antenna systems. The candidate must be able to work independently with minimal technical direction and work with systems engineering developing and managing system level RF and Radar Cross Section (RCS) requirements, developing operational systems concepts, and assisting with system architecture trade studies, ultimately defining Antenna Specifications and requirements. Verifies and validates aspects of system designs to ensure conformance with functional specifications and customer requirements. The candidate will define the technical approach and details of antenna design (Gain, VSWR, FOV, RCS, etc) he/she is responsible for. They will supervise both peers and more junior engineers, and will seek out domain expertise as needed and work hands-on with antenna assembly personnel (Operations) fabricating porotypes, antenna test, debug, integration and support of product manufacture and qualification. The candidate will be responsible for all aspects of antenna testing (Gain/Pattern and RCS as required) and be responsible for support to production. The candidate will present to customers (internal and external) and provide major inputs to proposals.

A good understanding of the fundamental trades within the entire antenna and RF sub system is desired. This includes the aperture domain as well as the RF electronics directly interfacing with the antenna. Experience with link budget analysis and propagation modelling are required to properly size the components within the antenna sub system relative to platform and channel constraints. An understanding of transceiver cascade analysis and signal processing is desired to support the interface between the antenna sub system and the transceiver. Experience with requirements flow down as well as traceability within the larger system is a plus.

Other responsibilities include:
  • Work with systems engineering functions developing and managing systems level RF and RCS requirements, developing operational systems concepts, and assisting with system architecture trade studies.
  • Verify and validate aspects of system designs to ensure conformance with functional specifications and customer requirements.
  • Define the technical approach and details of antenna designs he/she is responsible for.
  • Supervise both peers and more junior engineers, and seek out domain expertise as needed and work hands-on with antenna assembly personnel, antenna test, debug, integration and support of product manufacture and qualification.
  • Responsible for all aspects of testing within his/her area of expertise and may be responsible for support to production.
  • Present to customers and provide major inputs to proposals.
  • Experience with requirements flow down as well as traceability within the larger system is a plus


Required Education, Experience, & Skills
  • Bachelors degree in relted engineering field and 6 years hands on experience.
  • Solid understanding of the fundamental trades within the entire antenna sub system is required.
    • Including the aperture domain as well as the RF electronics.
  • Experience with link budget analysis and propagation modeling are required to properly size the components within the antenna sub system relative to platform and channel constraints.
  • Radar Cross Section (RCS) Experience is highly desirable
  • An understanding of transceiver cascade analysis and signal processing is desired to support the interface between the antenna sub system and the transceiver.
  • MS Office proficient, MATLAB Proficient, HFSS desired, FEKO desired


Preferred Education, Experience, & Skills
  • High-Frequency Structure Simulator (HFSS) or equivalent experience preferred
  • Secret/SAP/SAR Clearance highly preferred


Pay Information
Full-Time Salary Range: $115779 - $196825

Please note: This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience.

Employee Benefits: At BAE Systems, we support our employees in all aspects of their life, including their health and financial well-being. Regular employees scheduled to work 20 hours per week are offered: health, dental, and vision insurance; health savings accounts; a 401(k) savings plan; disability coverage; and life and accident insurance. We also have an employee assistance program, a legal plan, and other perks including discounts on things like home, auto, and pet insurance. Our leave programs include paid time off, paid holidays, as well as other types of leave, including paid parental, military, bereavement, and any applicable federal and state sick leave. Employees may participate in the company recognition program to receive monetary or non-monetary recognition awards. Other incentives may be available based on position level and/or job specifics.


About BAE Systems Electronic Systems
BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. Improving the future and protecting lives is an ambitious mission, but it’s what we do at BAE Systems. Working here means using your passion and ingenuity where it counts – defending national security with breakthrough technology, superior products, and intelligence solutions. As you develop the latest technology and defend national security, you will continually hone your skills on a team—making a big impact on a global scale. At BAE Systems, you’ll find a rewarding career that truly makes a difference. Electronic Systems (ES) is the global innovator behind BAE Systems’ game-changing defense and commercial electronics. Exploiting every electron, we push the limits of what is possible, giving our customers the edge and our employees opportunities to change the world. Our products and capabilities can be found everywhere – from the depths of the ocean to the far reaches of space. At our core are more than 14,000 highly talented Electronic Systems employees with the brightest minds in the industry, we make an impact – for our customers and the communities we serve.

This position will be posted for at least 5 calendar days. The posting will remain active until the position is filled, or a qualified pool of candidates is identified.

Salary : $115,779 - $196,825

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