RF Engineer, Entry​/Mid-Level

RF Engineer Overview

Sim Tech, Inc., recognized as one of the 2026 Best Places for Working Parents, is seeking a RF Engineer, Entry/Mid-Level to join our dynamic and diverse team in Huntsville, AL. This is an upcoming opening with opportunities for growth and professional development. Sim Tech offers a market leading compensation package with excellent benefits, work/life balance, outstanding retirement plan, career advancement and much more.

In this role, the RF Engineer, Entry/Mid-Level will support the design, development, testing, and evaluation of advanced RF sensor and seeker systems for Department of Defense applications. This role involves developing RF/microwave hardware, conducting system analysis and prototyping, performing laboratory and field testing, and analyzing performance data to validate system capabilities.

• Develop advanced RF/microwave system and subsystem hardware designs as part of RF Sensor and Seeker systems.
• Perform analysis, prototyping and end item development and evaluation in laboratory and field test environments.
• Provide Department of Defense support in the RF characterization and definition of new RF signal generation systems.
• Perform lab testing of developed RF/microwave hardware.
• Utilize vector network analyzers, spectrum analyzers, signal generators, and anechoic chambers to complete analysis.
• Perform analysis of measured data from laboratory and/or field testing of in-house developed hardware and systems.
• Compare expected performance or truth data to actual measured performance.
• Other responsibilities as assigned.

• Bachelor of Science Degree in Engineering from an accredited institution.
• 4 to 10 years demonstrated relevant experience.
• Demonstrated thorough understanding of RADAR systems, specifically as applied to missile seeker technology required.
• Experience with coherent waveform modulations such as Linear-FM (LFM) chirps, Barker codes, BPSK, etc.
• Experience with magnetron-based and solid-state amplifier transmitter systems.
• Experience developing algorithms for Fast-Fourier Transform (FFT), Constant False-Alarm Rate (CFAR), and reconstructing Range/Doppler maps from In-Phase/Quadrature stored data applications, etc.
• Demonstrated ability to develop and interpret requirements, data sets, reports, and specifications.
• Characterize the RF Signal Generation properties of new hardware under development, fabricate and calibrate RF Hardware, and then perform radar level assessments of RF performance.
• Expertise in RF techniques, RF hardware systems and components, RF signal generation, and programming in MATLAB and Python to modify existing code and write new code to acquire and analyze data.
• Experience with MATLAB, Python preferred.
• A self-starter, team player with a desire to work with a team of engineers, integrators, analysts and others in a dynamic and fast-paced environment.
• Ability to communicate effectively both orally and in writing and perform general office functions.
• U.S. Citizenship with Active Secret security clearance and ability to maintain required clearance.

Employees in these positions will function in a general office/cubicle setting environment, and laboratory/testing setting using standard office equipment and various electronic testing equipment, including a computer, telephone, printers, video equipment, computer software, and testing equipment. Will interact in a general office setting environment with various personnel; participate in meetings and contribute to team success; deliver timely results and produce reports;

receive and communicate information; may include telework. May function in a specialized laboratory/testing environment using electronic testing equipment, computer software, and complex systems. May move and test equipment of various weights. Laboratory environment may require use of protective equipment (PPE) including but not limited to safety glasses and protective hearing and footwear. May be expected to work varying shifts and hours to ensure successful operation of activities in the organization due to business demands;

travel occasionally for assigned work.

Sim Tech's mission is to be the most reliable and cost-effective provider of Signature Models, Simulations, Hardware, Software, Cyber solutions, and Test & Evaluation services. Established in 1983 by a team of experienced scientists and engineers, Sim Tech has a long history of delivering high-technology defense-oriented solutions. The company has been recognized as a Best Place to Work in 2020 and 2021, and as a Best Place for Working Parents in  by the Huntsville/Madison County Chamber of Commerce.

Sim Tech offers an industry-leading comprehensive compensation and benefits package. Be a part of over 43+ years of excellence—join our team today! To learn more about our exceptional team and employee benefits, contact Sim Tech HR or visit  for more information.