Senior RF Design Engineer Location: Northamptonshire, UK Salary: £60,000 - £65,000 Type: Permanent, Full-time (40 hours/week) About Lynx is representing a leading technology company specialising in advanced systems and solutions for defence and aviation markets. Their engineering team is dedicated to designing and developing world-class products for mission-critical applications. The Role We're seeking a Senior RF Design Engineer to join the RF and Hardware group, working on both new product development and sustaining existing products across a range of data links and RF systems. You'll be involved in the full product lifecycle from requirements through to support. Key Responsibilities Lead RF system architecture and design initiatives Perform RF simulation and analysis Create schematics and PCB layouts using industry-standard tools Scope new systems and technologies for feasibility and product design Manage external design houses and resources as needed Provide technical support for production and manufacturing Lead design reviews and verification processes, mentor junior engineers Contribute to department processes and documentation Required Experience & Skills Minimum 5 years' experience in RF design, expertise in several of the following areas: Design of linear high power wide band RF amplifiers up to 200W (GaN/LDMOS) RF filter design, Transmitter and receiver design LNA, down-converter and up-converter design Antenna design Working knowledge of analog and digital electronics EMC experience Practical experience with PCB prototype testing and rework Proficiency with RF simulation tools and PCB design software Preferred Experience 7 years in RF design Experience with Altium Designer, Cadence AWR Microwave Office, Ansys HFSS Background in military or airborne applications, experience with MIL-STD and DO160 testing Electronics experience including switch-mode PSUs, embedded circuitry, and EMC Education Bachelor's or Master's degree in Engineering or related field, or equivalent work experience Benefits Package Annual bonus scheme (3-6% of salary) 25 days holiday plus bank holidays Option to buy 5 additional holiday days Hybrid working model (3 days office/2 days home) Competitive pension scheme (5% employer contribution with 5% employee contribution) Life insurance coverage Professional development opportunities Requirements Must be eligible for UK security clearance (SC) | British citizenship or appropriate right to work