We are seeking a highly experienced Principal Electrical Design Engineer to lead the delivery of complex, large-scale data centre projects across the UK and internationally. This is a senior leadership role, ideal for someone with deep technical expertise in mission‑critical environments and a passion for innovation, sustainability, and high‑performance design. You will play a key role in shaping electrical design strategies for hyperscale and colocation data centres, ensuring solutions are resilient, efficient, and future‑ready.