We have an exciting opportunity for a Senior RF Design Engineer to join a leading engineering company specialising in RF technology for defence, aviation, and secure communications. This role offers a salary of £60,000 - £65,000 and involves working across the full product lifecycle in a fast-paced, innovative environment. Key Responsibilities: * RF system architecture, simulation, and circuit design. * PCB layout, schematic capture (Altium), and RF component selection. * Design of RF amplifiers (up to 200W), filters, transmitters, and receivers. * Hands-on testing, troubleshooting, and production support. * Leading design reviews and mentoring junior engineers. Required Experience & Skills: * 5+ years in RF design, ideally within defence or aerospace. * Proficiency in RF simulation tools, PCB design software, and test equipment (e.g., oscilloscopes, network analysers). * Expertise in RF power amplifiers (GaN, LDMOS), antenna design, and EMC considerations. * Strong analogue and digital electronics knowledge. Preferred Qualifications: * 7+ years in RF engineering. * Familiarity with MIL-STD and DO-160 compliance. * Experience with Altium Designer, Cadence AWR Microwave Office, and AnsysHFSS. This is a fantastic opportunity to work on cutting-edge technology in a collaborative, high-impact environment. Hybrid working available (3 days onsite, 2 days WFH)...