Principle mechanical design engineer

Principal Mechanical Design Engineer - Mission Critical (Data Centres) Location: London (with flexibility across Europe) An established, forward-thinking engineering and architecture consultancy is expanding its mission-critical capability, with a focus on delivering large-scale, high-performance data centre projects across Europe. This is an exciting opportunity for a Principal Mechanical Design Engineer to take a leading role in shaping this offering-working closely with senior leadership to define design standards, influence strategy, and help build a high-performing team. The Role You will be responsible for leading the mechanical design of complex data centre projects, ensuring innovative, efficient, and resilient solutions across the full design lifecycle. This is a senior, client-facing role combining technical leadership, project oversight, and team development, with a strong emphasis on modern cooling strategies and mission-critical system performance. Key Responsibilities Lead mechanical design delivery for large-scale data centre developments Act as a key client interface, supporting early-stage design discussions and brief development Drive the mechanical design strategy, including cooling approaches, redundancy, and uptime performance Manage and coordinate complex design programmes (e.g. multi-discipline drawing packages) Work closely with electrical and BMS teams to ensure fully integrated M&E solutions Overse...