Principal Electrical Engineer (AI Facilities)

Our client is a specialist engineering consultancy with an established reputation in mission-critical infrastructure, data centre design, and AI-ready facilities across the UK, Europe, and the Middle East. With continued growth in high-density compute, hyperscale developments, and resilient digital infrastructure, they are looking to appoint a Principal Electrical Engineer to join their London team.

This is an excellent opportunity for a senior engineer who wants to play a visible role in complex, technically driven projects while joining a consultancy known for agility, quality, and specialist expertise.

As a Principal Electrical Engineer, you will lead electrical design and delivery across mission-critical developments from concept through commissioning, manage multidisciplinary teams, mentor engineers, and act as a key technical interface with clients, contractors, and delivery partners.

Why this role stands out:

• Strong pipeline of AI facilities, hyperscale data centres, and digital infrastructure projects

• Opportunity to work with major operators, developers, and global technology clients

• Join a specialist consultancy with an established footprint across multiple international markets

• Clear progression routes into Associate, Technical Lead, or Director-level roles

• Collaborative environment with genuine technical autonomy and influence

• London-based position within a high-growth sector of the market

The role:

As a Principal Electrical Engineer, responsibilities will include:

• Leading end-to-end electrical design delivery for AI facilities, data centres, and critical environments

• Designing and specifying LV/MV power systems, UPS, standby generation, lighting, fire alarm, earthing, and life safety systems

• Managing scope, programme, cost, risk, and resource across multiple live projects

• Acting as lead contact for clients, contractors, suppliers, and internal stakeholders

• Producing technical reports, tender packages, schematics, SLDs, and design calculations

• Supporting testing, commissioning, snagging, and project closeout phases

• Mentoring junior and intermediate engineers, driving standards and best practice

• Contributing to innovation in resilient infrastructure and AI-ready power environments

Technical requirements:

• Strong electrical building services design background within data centres, mission-critical, commercial, or high-load environments

• Good working knowledge of BS, CIBSE, IEC, EN, and UK regulatory standards

• Software experience with AutoCAD, Revit MEP, Bluebeam, ETAP / Amtech / Dialux

• Ability to produce coordinated design packages, drawings, studies, and technical documentation

• Experience supporting commissioning and live project delivery in critical facilities

Ideal profile:

• 8+ years’ experience in electrical building services engineering

• Degree qualified in Electrical Engineering or Building Services Engineering

• Chartered or working towards chartership (IET / CIBSE / equivalent)

• Proven delivery experience on large-scale MEP projects from concept to handover

• Previous experience in data centres, critical infrastructure, or AI-focused facilities preferred

• Strong stakeholder management and team leadership capability

• BREEAM / LEED exposure beneficial

If you are a Principal Electrical Engineer seeking a role in one of the fastest-growing sectors in engineering, this is a strong opportunity to join a respected specialist consultancy delivering future-facing infrastructure.

For a confidential discussion or to apply, get in touch directly.