Senior Design Engineer

An exciting opportunity has arisen for a Senior Design Engineer to join a pioneering UK-based specialist in military communications technology, located in Letchworth Garden City. This is a hands-on, multifaceted engineering role ideally suited to an experienced and adaptable electronics professional who enjoys working across the full product lifecycle. You will be supporting high-reliability products used in marine and sub-marine low/very-low frequency (VLF/LF) communications, a field in which the company is globally recognised as a leader. Key Responsibilities for the Senior Design Engineer based in Letchworth, Hertfordshire: Design and modify RF-based electronic assemblies for VLF/LF communication systems. Oversee projects from concept through to production and delivery. Manage sub-suppliers for components and mechanical services (box-build, machining, etc.). Investigate and diagnose faults at component and trace level on new and field-returned PCBs. Generate detailed reports, technical documentation, and engineering change notices (ECNs). Ensure compliance with company health & safety, environmental policies, and quality standards (ISO 9001). Essential Skills & Experience: Strong understanding of electronic and electrical design at the component level. Background in analogue design and low-noise circuit design (LF radio experience advantageous). PCB layout design and familiarity with assembly processes. Proven fault-finding skills down to trace/component level. Experience with mechanical drawings and sub-assembly integration. Familiarity with obsolescence mitigation in long-life electronic systems. Experience within an ISO 9001 design and manufacturing environment. Qualifications: Bachelor\’s degree or higher in Electronics, Physics, or a related discipline. Extensive experience in electronics design or support within commercial or defence sectors. UK citizen with no restrictions for UK Security Clearance. This is a unique opportunity to contribute to mission-critical communications technology with long-term global impact. If you\’re a proactive engineer who enjoys variety, responsibility, and technical depth-this role could be your perfect fit. APPLY NOW for the role of Senior Design Engineer based in Letchworth, Hertfordshire and to join a committed team working on world-class defence technology. Please send your CV to (url removed) or call Lewis on (phone number removed)