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Principal Electrical Engineer – System Engineering (Data Centres)

London Bridge, UK Full-time | Permanent Hybrid (3 days in-office, 2 days remote)

Are you a systems-focused Principal Electrical Engineer ready to take charge of cutting-edge Data Centre projects across the UK, Europe, India, and the Middle East?

We’re looking for a passionate and technically strong professional to lead the design and delivery of complex electrical systems for high-specification mission-critical infrastructure. You’ll collaborate with top-tier clients including colocation providers and hyperscale developers, shaping the future of sustainable, efficient, and resilient Data Centres.

🔧 Your Role

  • Lead electrical engineering delivery from concept through to commissioning.
  • Oversee and actively participate in client, consultant, and contractor meetings (UK and internationally).
  • Develop high-quality electrical designs and specifications that meet all regulatory and performance standards..
  • Coordinate seamlessly with multidisciplinary teams on integrated design solutions.
  • Validate contractor designs and conduct QA/QC inspections and witness testing on site.
  • Mentor junior engineers and review their work for quality and compliance.
  • Track project hours vs. budgets and flag scope changes proactively.
  • Provide leadership, guidance, and technical direction to project teams
  • Take full accountability for the discipline’s output and client satisfaction
  • Contribute to a culture of excellence, innovation, and collaboration.

✅ What You Bring

  • • BEng/MEng in Electrical Engineering (or equivalent). Vocational qualifications may be considered with strong experience.
  • 6–15 years of electrical engineering experience in building services, with a focus on mission-critical environments.
  • Chartered Engineer status (or equivalent) is required.
  • • Deep experience with HV/MV/LV systems, UPS, generators, switchgear, and AC/DC power systems.
  • • Proven track record delivering Data Centre or clean tech/telecoms projects from concept to commissioning.
  • • Ability to lead teams (3–10 engineers) across multiple regions and disciplines.
  • • Strong problem-solving skills, commercial awareness, and attention to detail.
  • • Familiarity with project controls, scope definition, risk identification, and budget adherence.
  • • Excellent relationship-building and communication skills at all levels.

🛠️ Technical Proficiency

  • • Design tools: Revit, AutoCAD, Dialux, Amtech, SKM, ETAP, Easypower
  • • Platforms: Microsoft Office, BIM360

🌟 Why This Role?

  • Opportunity to work with renowned global Data Centre clients
  • Leadership role with high autonomy and international exposure
  • Engage with projects across UK, Mainland Europe, India & the Middle East

💼 What We Offer

  • Competitive salary + up to 10% annual bonus
  • Hybrid working: 3 days from our London Bridge office, 2 days from home
  • 25 days holiday + UK bank holidays (option to purchase 5 more)
  • 6% employer pension contribution
  • Life insurance & long-term sickness cover
  • Perkbox access – health, fitness, and entertainment perks
  • Cycle to Work scheme
  • Employee Assistance Programme (EAP)
  • Continuous Learning via GoodHabitz.
  • Regular social events and a collaborative team environment
  • Strong internal support with global knowledge-sharing across Deerns Group

This role is ideal for a passionate, versatile, and articulate engineer looking to lead high-impact projects across global markets.

👉 Apply now and become a driving force in the future of electrical system engineering for Data Centres.