RF Designer Defence Systems (CW) Location: UK | On-site | Defence Engineering Our client, a long-standing partner to the UK Ministry of Defence, is seeking an RF Designer to support the research, design, and testing of advanced radio-frequency technology for integration into complex weapons systems. This role requires strong hands-on RF design experience, with the ability to modify existing designs and produce rapid prototypes to support programme delivery. Key Responsibilities Research, design, and test RF circuits for defence applications Produce and modify RF designs to support system integration Develop and prove RF designs through laboratory testing and trials Interface with Datalink core teams, Design Authority, and engineering stakeholders Ensure RF designs integrate effectively across wider system architecture Support rapid prototyping and design iteration where required Essential Skills & Experience Practical RF component-level design and test experience across 30?MHz30?GHz Experience designing LNAs, HPAs, filters, oscillators, synthesisers, modulators RF design for harsh environments (EMC, vibration, thermal) Hands-on use of RF test equipment (Spectrum Analysers, VNAs, Power Meters) Strong practical skills including soldering and fault-finding Knowledge of digital, analogue, and power supply design Experience with RF design tools (e.g. Microwave Office), including layout Understanding of manufacturing techniques, DFM and testability Security & Eligibility British Citizen or Dual UK national with British citizenship BPSS clearance required (post-offer) What happens next Applicants meeting the essential criteria will be contacted for a structured screening discussion to assess technical fit and project experience.