Full job descriptionPrincipal Electrical Design Engineer - Mission Critical (Data Centres)
Location: London (with flexibility across Europe)
An established, forward-thinking engineering and architecture consultancy is building out a new mission-critical business unit, focused on the delivery of large-scale, cutting-edge data centre projects across Europe.
This is a rare opportunity for a Principal Electrical Design Engineer to play a key role in shaping and leading this capability from the ground up, working alongside senior leadership to define standards, build teams, and deliver high-performance infrastructure.
The Role
You will take a leading position in the development and delivery of modern data centre design, acting as both a technical authority and client-facing representative.
This role combines strategic leadership, hands-on electrical design expertise, and programme oversight, with responsibility across the full project lifecycle-from concept through to detailed delivery.
Key Responsibilities*Lead electrical design for large-scale, mission-critical data centre projects
*Engage directly with clients, managing upstream conversations and design briefs
*Oversee design delivery downstream, coordinating with multidisciplinary engineering teams
*Drive the design formation process, including resilience strategies, uptime requirements, and redundancy concepts
*Manage complex design programmes (e.g. coordinating 100+ drawing packages across M&E disciplines)
*Work closely with mechanical counterparts (cooling, BMS, etc.) to ensure fully integrated solutions
*Liaise with existing data centre specialists to review progress and optimise project outputs
*Collaborate with structural and architectural teams within a broader design environment
*Support the growth of the team, including helping to recruit and develop M&E engineers
About You*Proven experience at Principal or Lead Electrical Engineer level
*Strong background in data centre or mission-critical infrastructure design
*Deep understanding of:*Power resilience and redundancy in modern data centres
*Uptime classifications and mission-critical design principles
*Integration with modern cooling technologies and BMS systems

*Comfortable operating in a client-facing role, leading technical discussions and design strategy
*Experience managing complex design programmes and multidisciplinary teams
*A collaborative mindset, with the ability to work across engineering and architectural disciplines
The Opportunity*Join a modern, progressive consultancy with a strong reputation for innovation
*Be part of building a new capability area, with real influence on its direction and growth
*Work in a business that prioritises people, wellbeing, and work-life balance-where your time is respected
*Collaborate with highly experienced leadership in a supportive, open-minded culture
*Contribute to some of the most advanced data centre projects in Europe