Senior Radio Frequency Engineer
IC Resources
Cambridge, England, United Kingdom
A UK-based technology consultancy specialising in defence and national security is seeking a Principal RF Engineer to support the development of cutting-edge electronic and RF solutions. The role offers a rare opportunity to work on impactful, high-assurance projects that directly contribute to UK defence and homeland security. As a Principal RF Engineer, you'll collaborate with a multidisciplinary team of engineers and scientists to develop prototypes and solve complex RF and electronics challenges. Projects are often fast-paced, varied, and technically demanding from concept and simulation through to build, test, and deployment. This position would suit someone who thrives on solving open-ended technical problems, has a deep understanding of RF fundamentals, and enjoys working in a hands-on, lab-based environment. Key Responsibilities: Develop and prototype advanced RF and mixed-signal systems for defence-focused applications. Carry out design, simulation, and verification using tools such as ADS, CST, or Microwave Office. Take ownership of hardware design from high-speed digital and RF PCB layout through to validation and system-level integration. Participate in system architecture development, often working across antennas, DSP, and embedded software teams. Explore novel solutions and technologies, keeping at the forefront of RF and electronic engineering. Your Profile: A degree in Electronics, Physics, or a related discipline. Experience in RF/electronics design and development. Skilled in RF PCB design, characterisation, and lab testing. Experience using relevant simulation and modelling tools (e.g., CST, ADS, Microwave Office). A track record of taking designs from concept to real-world implementation. Additional experience in any of the following would be advantageous: Antenna design and test RADAR or secure communications systems DSP and embedded processing Scripting for modelling or test automation (MATLAB, Python) High-speed digital board design This Principal RF Engineer role is open to candidates from a wide range of technical backgrounds. Prior defence experience is a bonus but not essential. Why Join This Team? You d be joining a growing team of around 40 engineers and scientists in Cambridge, with access to modern labs, prototyping facilities, and a strong culture of technical freedom and idea-sharing. The structure is flat, collaborative, and project-led enabling you to contribute meaningfully from day one. Employees benefit from: 10% employer pension contribution (plus 3% employee) Private healthcare for you and your family Enhanced family leave policy 25 days holiday + bank holidays Electric vehicle leasing, cycle to work scheme On-site gym and access to local sports/social clubs Security Clearance Due to the nature of the work, you must be eligible for UK security clearance. This role is not eligible for visa sponsorship under the UKVI scheme. If you'd like to hear more about this position as a Principal RF Engineer, please contact Zac Taylor at IC Resources.