RF Engineer (Mid-Level) - Low-Power Radio and Mesh NetworksLocation: Stroud, GloucestershireSalary: Up to 55,000Security: BPSS before start; eligibility for UK SC clearance requiredKO2 is recruiting on behalf of a fast-growing engineering scale-up working on defence and space projects.As a RF Engineer, you''ll help design, test and improve the low-power radio links and mesh networks behind those systems. It''s a hands-on role in a small, close team: bench work, field trials and customer demonstrations, with real users and real deadlines.Key responsibilitiesDesign, develop and optimise low-power RF hardware and radio links for small, battery-powered sensor nodesDevelop and improve mesh networking, including routing, multi-hop performance, latency and resilienceCarry out link budget analysis and range planning, and help choose antennas, bands and radio modulesSupport RF front-end and antenna design, PCB layout reviews, and matching and tuning on the benchTest and characterise radio performance in the lab and field using spectrum analysers, VNAs and signal generatorsWork with embedded, hardware and AI teams to balance range, data rate and power within tight size, weight and power limitsSupport field trials and customer demonstrations, including deploying units and diagnosing link issues on siteWrite clear test reports and technical documentation, and support EMC and regulatory compliance Essential skills and experienceDegree in electronic engineering, physics or a related ..... full job details .....