Principal Engineer - Data Centres in London

We're seeking a Principal Electrical Engineer to play a leading technical role within a specialist team delivering major data centre and mission-critical developments across the UK and Europe. This position is suited to an experienced electrical engineer who can operate at a senior technical level while also influencing project strategy, developing engineering teams and building strong relationships with clients and delivery partners.

You'll be involved in complex developments ranging from large-scale data centre campuses to colocation and edge facilities. The work will cover the evolving power demands of high-density computing, AI infrastructure, resilient electrical networks and increasingly sophisticated energy and cooling requirements.

You'll have the opportunity to shape engineering solutions from the earliest project stages, provide technical leadership through design and construction, and help drive consistently high standards across the wider team.

Your Responsibilities

• Provide technical leadership on major electrical engineering projects, taking responsibility for the quality and suitability of design solutions.
• Lead electrical strategies from feasibility and concept through detailed design, construction, commissioning and handover.
• Establish project design approaches, technical requirements and electrical engineering principles at the outset of projects.
• Lead the development of resilient power strategies for mission-critical facilities, including N, N+1, 2N and other high-availability configurations.
• Oversee the design of LV distribution, standby generation, UPS systems, busbar infrastructure, critical power monitoring and associated control systems.
• Provide technical direction on HV and MV systems, utility connections and electrical infrastructure in collaboration with specialist consultants and suppliers.
• Review and challenge engineering proposals to ensure solutions are technically robust, practical, compliant and commercially appropriate.
• Act as a senior technical point of contact for clients, contractors, manufacturers and other project stakeholders.
• Provide technical input into tenders, procurement strategies, contractor appointments and design reviews.
• Support projects during construction and commissioning, resolving complex technical issues and providing engineering direction where required.
• Lead technical discussions, workshops and design reviews with both internal and external stakeholders.
• Mentor and develop engineers at different levels, helping to strengthen technical capability across the team.

What We're Looking For

You'll be an established electrical engineering professional with significant experience delivering complex building services or mission-critical projects. We're looking for:

• A degree, HNC, HND or equivalent qualification in Electrical Engineering, Building Services Engineering or a related discipline.
• Extensive experience in electrical building services design and project delivery.
• Strong technical knowledge of electrical distribution and critical power systems.
• Proven experience working on complex, highly resilient or mission-critical infrastructure.
• Detailed knowledge of relevant UK regulations, standards and industry guidance, including BS 7671 and EN 50600.
• Experience leading multidisciplinary design teams and coordinating complex project interfaces.
• Strong understanding of LV systems and a good level of technical knowledge across HV/MV infrastructure.
• Experience with BIM-led project delivery and Revit.
• Familiarity with electrical design and analysis software such as EOM, ETAP or equivalent platforms.
• Excellent communication skills and the confidence to provide technical advice to clients and project stakeholders.

This is a senior technical position offering the chance to influence some of the most significant developments within the digital infrastructure sector. You'll work on projects where electrical resilience, capacity and reliability are fundamental to their success, while helping clients navigate the challenges created by rapidly increasing power demands and evolving technology.

Alongside project delivery, you'll have the opportunity to shape technical standards, develop engineers and influence how the wider team approaches complex electrical engineering challenges. If you're an experienced electrical engineer ready to take a principal-level position with genuine technical influence and responsibility, this could be an excellent next step.

Apply now or reach out to Roberto Sartori for a confidential chat.

Aldwych Consulting values diversity and promotes equality. We encourage and welcome applications from all sections of society and are happy to discuss reasonable adjustments and/or additional arrangements as required to support your application. Candidates must be eligible to live and work in the UK.