About the Company Quell is a high-growth British defence and security AI technology start-up developing solutions to counter drone, vehicle, and human threats across the military, civilian and critical national infrastructure sectors. Based near Cambridge, we are seeking exceptiona l RF Engineers to design, implement, and optimise RF systems for high-frequency communication and sensing applications. This role can suit entry-level, mid-level, or senior candidates, depending on experience, and offers the opportunity to work on cutting-edge RF technologies within a multidisciplinary engineering team. Key Responsibilities Designing and optimising RF systems and components (e.g., antennas, filters, amplifiers) Working on phased-array antenna design and beamforming technologies Testing and validating RF hardware for performance, reliability, and regulatory compliance Performing RF simulations using industry tools and modelling environments Collaborating with cross-functional teams to integrate RF components into larger systems Documenting test results, maintaining records, and ensuring compliance with relevant standards Requirements Education - Bachelor’s or Master’s degree in Electrical Engineering or a related discip line Experience entry-level considered with strong fundamentals) Hands‑on experience with RF lab equipment (spectrum/network analysers, signal generators) Strong understanding of phased-array antennas and beamforming Experience with SDRs and tools such as GNURadio Solid knowledge of RF and microwave theory Experience with RF front‑end components (LNAs, PAs, filters) Familiarity with RF communication and modulation standards Preferred Linux experience for system setup and testing workflows Strong programming skills History of patent contributions Security clearance (or ability to obtain one) Experience with manufacturing processes and quality assurance Details Location: North Uttlesford / Greater Cambridge area, on-site Five days a week on-site (ie: this is not a hybrid role) Full UK driving licence required. If this isn’t held, candidates will need to commit to obtaining within 6 months of their start date Applicants must be fully eligible to work in the UK without restriction, time limit, or the need for current or future sponsorship #J-18808-Ljbffr
Radio Frequency Engineer employer: Quell
Quell is an exceptional employer that fosters a dynamic and innovative work environment, perfect for those looking to make a significant impact in the defence and security sector. Located near Cambridge, employees benefit from a supportive culture that prioritises professional growth, with opportunities for learning and development while being part of a high-performing team. The hands-on nature of the Senior Human Resources Manager role allows for direct influence on shaping HR processes and promoting diversity, equity, and inclusion within a rapidly scaling start-up.
