Job Description:

Principal Electrical Design Engineer - Data Centres



Location: South London



About the Role

We are seeking a highly experienced Principal Electrical Design Engineer to lead the delivery of complex, large-scale data centre projects across the UK and internationally. This is a senior leadership role, ideal for someone with deep technical expertise in mission-critical environments and a passion for innovation, sustainability, and high-performance design.
You will play a key role in shaping electrical design strategies for hyperscale and colocation data centres, ensuring solutions are resilient, efficient, and future-ready.

Key Responsibilities

• Lead the electrical design delivery of large-scale data centre projects (new build and upgrades)
• Develop and oversee LV & HV power distribution systems, including UPS, generators, and redundancy strategies (N+1, 2N, etc.)
• Provide technical leadership across multidisciplinary teams
• Engage directly with clients, stakeholders, and contractors to ensure successful project outcomes
• Carry out peer reviews, technical approvals, and ensure compliance with relevant standards
• Drive innovation in energy efficiency, sustainability, and resilience
• Support business development through technical input and client engagement
• Mentor and develop junior engineers within the team

Key Requirements

• Degree qualified in Electrical Engineering or related discipline
• Chartered Engineer (CEng) or working towards chartership
• Extensive experience delivering mission-critical/data centre projects
• Strong knowledge of:
  • Power distribution systems (HV/LV)
  • Standby power systems (diesel generators, battery storage, UPS)
  • Electrical resilience standards in critical environments
• Proficiency with industry software (e.g., ETAP, Amtech, Dialux, Revit)
• Excellent communication and leadership skills
• Experience working in a consultancy or engineering design environment

Desirable Experience

• Exposure to hyperscale data centre clients
• Experience with international projects and standards
• Understanding of sustainability frameworks and low-carbon design
• Knowledge of digital engineering / BIM processes

What's on Offer

• Opportunity to work on cutting-edge, high-profile data centre developments
• A collaborative and forward-thinking engineering environment
• Clear progression into technical or project leadership roles
• Competitive salary and comprehensive benefits package
• Flexible and hybrid working arrangements

Apply Now

If you are a driven electrical engineer ready to take a leading role in delivering critical infrastructure projects, we'd love to hear from you.