Principal Electrical Engineer in London

Energy Jobline ZR; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Energy Jobline ZR in London is seeking a Principal Electrical Engineer to lead the delivery of complex, mission-critical electrical design for data centres and high-performance facilities. You will guide multidisciplinary teams from concept through construction, ensuring compliance with UK standards and international codes.

The role requires senior technical leadership, stakeholder engagement, and mentoring of engineers, with a track record in large-scale data centre projects and strong

Qualifications

• Experience delivering large-scale data centre projects.
• Understanding of UK Building Regulations and BS 7671.
• Proven leadership of multidisciplinary teams.
• Experience with international standards (IEC, NFPA, Uptime Institute).

Responsibilities

• Lead electrical design delivery for data centre and mission-critical projects.
• Review calculations, specifications, reports, drawings and submissions for quality and compliance.
• Coordinate with mechanical, public health, structural, architectural and specialist disciplines.
• Support construction-stage activities including site inspections and commissioning reviews.
• Mentor engineers and contribute to proposals and business development materials.

Skills

Data centre design

Electrical systems

Project leadership

Technical governance

Client engagement

Mentoring teams

Education

Degree in Electrical Engineering

Chartered Engineer (IET)

Tools

BMS integration

UK DNO processes (G98/G99/G100)

IEC/EN standards

Job description

Job DescriptionPrincipal Electrical Engineer

Purpose of the Job:This is a senior technical leadership role based in our Client's London office, responsible for the delivery of complex, mission-critical electrical engineering design across data centres and high-performance facilities in the UK and international markets.The role leads technical design delivery, provides authoritative engineering direction, and ensures compliance with UK regulatory requirements and international standards from concept through construction support.The successful candidate will:Lead multidisciplinary electrical design delivery on large-scale mission-critical projectsProvide technical governance and quality assurance across project outputsSupport client engagement during technical discussions and design coordinationMentor and guide engineering teams within a high-performance delivery environmentContribute to construction-stage technical resolution and site support activities

Job Accountabilities:

Design Leadership

• Lead electrical design delivery for data centre and mission-critical projects.
• Oversee concept, schematic, detailed design, and construction-stage deliverables.
• Review and technically validate calculations, specifications, reports, drawings, and submissions.
• Ensure compliance with UK standards (BS 7671, Building Regulations), international standards and client requirements.
• Provide technical solutions for complex design and coordination challenges.

Project & Stakeholder Management

• Manage technical delivery across multiple projects in coordination with project leads.
• Act as electrical engineering lead in technical workshops, design reviews, and client meetings.
• Coordinate with mechanical, public health, structural, architectural, and specialist disciplines.
• Monitor technical quality, design consistency, and engineering outputs across project teams.
• Support construction-stage activities including site inspections, technical assessments, and commissioning reviews.

Technical Support (Construction & Delivery Stage)

• Support construction-stage design clarifications and technical responses.
• Participate in site visits and assist in resolving design-related issues.
• Review commissioning inputs and ensure design intent is achieved on site.
• Provide technical input during project close-out and handover stages.

Business Support (Technical Input)

• Support project planning activities where required from a technical perspective.
• Provide technical input into proposals and bid submissions as required.
• Assist senior management with technical content for business development materials when needed.

People Leadership

• Provide technical leadership and mentoring to Senior, Intermediate, and Associate Engineers.
• Support development of engineering capability within the electrical team.
• Promote design excellence, technical consistency, and best practice standards.

Technical Knowledge

• Strong knowledge and hands‑on experience required across:
• Data Centre and mission‑critical facility electrical design.
• Electrical infrastructure resilience and redundancy philosophies (N+1, 2N, Concurrent Maintainability).
• LV/MV power distribution, standby , UPS systems and switchgear.
• Building Management Systems (BMS) integration.
• UK DNO connection processes (G98/G99/G100) and coordination.
• Coordination of multidisciplinary engineering teams.
• UK standards (BS 7671, Building Regulations) and international standards (IEC, NFPA, Uptime Institute, EN 50600).

Qualifications & Education

• Degree in Electrical Engineering (accredited university).
• Experience10 15 years of relevant consultancy experience.
• Demonstrated delivery of large-scale Data Centre / mission-critical projects.
• Proven team leadership and client relationship management.
• Experience in international engineering consultancy environments.

Knowledge & Skills

• Chartered Engineer (IET) or equivalent professional accreditation.
• Experience with UK regulatory requirements and client base.
• Exposure to Tier III / IV data Centre design.
• Strong commercial awareness and management.

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