Our client, an established and highly respected engineering organisation is seeking a PCB Design Engineer to join a specialist technology team delivering complex solutions across commercial, defence, aerospace, and secure systems programmes. This role offers the opportunity to work on high-integrity, multi-layer PCB designs across a diverse portfolio of cutting-edge projects, ranging from early-stage R&D through to full-scale production. Key Responsibilities * Design and layout complex multi-layer PCBs (4–20 layers) including rigid, flex, and rigid-flex designs * Support development of analogue, RF, digital, high-speed and power circuits * Ensure designs meet EMC, signal integrity, and security (e.g. TEMPEST) requirements * Collaborate with hardware, mechanical, and production teams to ensure design integration and manufacturability * Engage with suppliers to ensure compliance with DFM, DFT, and fabrication standards * Develop and maintain component libraries, footprints, and CAD data * Participate in design reviews and contribute to technical decision-making * Estimate design effort and support project delivery to cost and schedule targets * Contribute to continuous improvement of design tools, processes, and best practices Experience & Skills Required * Degree-qualified (or equivalent experience) in Engineering, Physics, or a related discipline * Proven experience in PCB design and layout of complex, high-density circuits * Strong knowledge of multi-layer routing, IPC standards, and design constraints * Experience using industry-standard PCB design tools (e.g. Altium, PADS or similar) * Understanding of DFM/DFT principles and supplier engagement * Ability to manage multiple projects and deliver to tight deadlines Desirable Experience * Signal integrity or power distribution analysis * Experience with RF or high-speed digital design * Familiarity with Gerber/ODB++ data * Exposure to configuration management tools (e.g. Windchill) * Schematic capture capability Security & Eligibility Due to the nature of the work, candidates must be eligible to obtain UK Security Clearance (SC/DV). This typically requires British citizenship and UK residency history