Radio Frequency Engineer

Defense Search; Harvard (MA); On-site; USD 115,000 - 175,000; Full time

Job summary

Defense Search in Harvard, MA is seeking an RF Simulation Engineer to advance electromagnetic modeling for high-reliability RF/microwave components.

The role focuses on simulation-to-hardware correlation, material effects, and cross-functional collaboration with design and test teams. Candidates should have HFSS/CST/Sonnet and strong filter theory knowledge. On-site work from 8:00 AM to 5:00 PM.

Qualifications

• Bachelor's or Master's degree in Electrical Engineering, Physics, or a related field.
• 3+ years of RF/microwave simulation experience.
• Experience with HFSS, CST, Sonnet, Microwave Office, or equivalent.
• Solid understanding of RF and microwave filter theory (Butterworth, Chebyshev, elliptic).
• Proficiency in MATLAB or Python for post-processing.

Responsibilities

• Developing and executing electromagnetic simulation models for RF components.
• Using simulation tools such as HFSS, CST, Sonnet, or equivalent platforms.
• Analyzing ferrite performance under material shifts and thermal effects.
• Collaborating with design engineers to optimize topologies for insertion loss, return loss, and stopband rejection.
• Supporting prototype builds by generating simulation-to-hardware correlation analysis.
• Documenting simulation methodologies, assumptions, and results for design reviews.
• Interfacing with test teams to validate simulation models against measured data.
• Contributing to design of experiments and sensitivity analyses.
• Supporting multiple projects at a time in a fast-paced RF engineering environment.
• Running simulations and providing design support as needed.
• Supporting new product development efforts for RF components, filters, amplifiers, frequency converters, and related technologies.

Skills

RF simulation

HFSS CST Sonnet

MATLAB Python

Filter theory

Education

Electrical Engineering or Physics degree

Tools

HFSS

CST

Sonnet

Microwave Office

Job description

Are you looking for a new career opportunity with an exciting Defense/Aerospace company?! Then we've got the right team for you! In this role, you're responsible for the duties listed below.

Immediate opening for an RF Simulation Engineer in Harvard, MA who possesses:

• Bachelor's or Master's degree in Electrical Engineering, Physics, or a related field


• 3+ years of experience in RF/microwave simulation, including HFSS, CST, Sonnet, or equivalent tools


• Solid understanding of filter theory, including Butterworth, Chebyshev, and elliptic topologies


• Proficiency in MATLAB or Python for post-processing simulation data

FULL DESCRIPTION

We are seeking an RF Simulation Engineer to support simulation efforts for next-generation RF and microwave components used in high-reliability defense and commercial environments. This role will focus on electromagnetic simulation, RF/microwave filters, isolators, circulators, ferrite component performance, simulation-to-hardware correlation, and design validation. The ideal candidate will have strong HFSS, CST, Sonnet, or related simulation experience, a solid understanding of RF filter theory, and the ability to support multiple engineering projects in a collaborative, fast-growing environment.

The selected candidate will be responsible for:

• Developing and executing electromagnetic simulation models for RF and microwave filters, isolators, circulators, and related components


• Using simulation tools such as HFSS, CST, Sonnet, or equivalent platforms


• Analyzing ferrite performance in a variety of environments while accounting for material property shifts and thermal effects


• Collaborating with design engineers to optimize component topologies for insertion loss, return loss, and stopband rejection


• Supporting prototype builds by generating simulation-to-hardware correlation analysis


• Documenting simulation methodologies, assumptions, and results for design reviews


• Interfacing with test teams to validate simulation models against measured data


• Contributing to design of experiments and sensitivity analyses


• Supporting multiple projects at a time in a fast-paced RF engineering environment


• Running simulations and providing design support as needed


• Supporting new product development efforts for RF components, filters, amplifiers, frequency converters, and related technologies


• Working cross-functionally with engineering, testing, and production teams to support project timelines and product performance


• Helping improve first-pass success through strong simulation practices, validation, and design support

The selected candidate will also possess:

• Bachelor's or Master's degree in Electrical Engineering, Physics, or a related field required


• 3+ years of RF or microwave simulation experience required


• Experience with HFSS, CST, Sonnet, Microwave Office, or equivalent simulation tools


• Solid understanding of RF and microwave filter theory


• Knowledge of Butterworth, Chebyshev, and elliptic filter topologies


• Proficiency in MATLAB or Python for post-processing simulation data


• Experience with simulation-to-hardware correlation preferred


• Hands-on experience testing what has been simulated strongly preferred


• Experience with RF filters, ferrite components, isolators, circulators, amplifiers, or frequency converters preferred


• Experience with higher-frequency RF components strongly preferred


• Experience supporting defense, aerospace, space, maritime, ground-based, or commercial RF applications preferred


• Ability to document technical assumptions, methodology, results, and recommendations clearly


• Strong written and verbal communication skills


• Ability to work closely with design engineers, test teams, and cross-functional partners


• Ability to manage multiple projects and priorities at once


• Ability to work in an energetic, collaborative engineering environment


• Ability to work onsite in Harvard, MA


• Ability to work Monday through Friday from approximately 8:00 AM to 5:00 PM


• Ability to obtain a US security clearance preferred

Physical Requirements:

• Ability to sit and work at a computer for extended periods while running simulations, reviewing technical data, and documenting results


• Ability to communicate by phone, email, video meeting, and in person throughout the workday


• Ability to review engineering drawings, simulation models, test data, reports, and computer screens for extended periods


• Ability to use hands and fingers for typing, data analysis, simulation work, documentation, and standard engineering tasks


• Ability to occasionally stand, walk, bend, reach, and move throughout office, engineering, lab, or production areas as needed


• Ability to occasionally lift, carry, or move standard office, engineering, lab, or test materials as needed


• Ability to work in an engineering, test, or manufacturing environment while following applicable safety procedures


• Ability to wear required personal protective equipment as needed when entering lab, test, or production areas

Salary Range:

$115,000 to $175,000/year + 8% bonus

More information can be found at www.defensesearchusa.com.