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 or call Lewis on