Tunnel Electrical Engineer

CWA; London Borough of Lambeth; On-site; GBP 60,000 - 90,000; Full time

Benefits offered by this job

Market leading salaries

Generous annual leave

Pension scheme

Flexible benefits

Job summary

Sizewell C Company, via the Civil Works Alliance (CWA), seeks a Tunnel Electrical Engineer to support the Sizewell C project. The role focuses on electrical design, testing regimes, and oversight across marine and tunnel work, including TBMs, power supplies, and control panels.

Based in the project office with regular site visits, you will report to the site electrical manager. You will prepare drawings, supervise installations, and ensure safety and compliance while collaborating with other

Qualifications

• Degree or equivalent in electrical/electronic engineering.
• ECS Card held or eligible for certification.
• 17th/18th Edition Qualification required.
• Knowledge of electrical systems, power distribution and control systems.
• Experience with TBMs is mandatory and joint ventures/alliances preferred.

Responsibilities

• Provide electrical engineering expertise to design, implement and oversee electrical systems for marine and tunnel work.
• Prepare technical drawings, specifications, and documentation for the project team.
• Design, develop and maintain testing regimes; supervise TBM power and auxiliary systems.
• Calculate power consumption and establish TBM power requirements; support installation and commissioning.
• Ensure compliance with codes, safety regulations, and coordinate with other teams; write risk and method statements.

Skills

Project management

Electrical design

Troubleshooting

AutoCAD

Education

Degree in electrical/electronic engineering

ECS Card

17th/18th Edition Qualification

Tools

AutoCAD

Job description

Tunnel Electrical Engineer Opportunity with the Civil Works Alliance (CWA), Supporting Sizewell C

As part of the CWA (Civil Works Alliance), you will support the building of Sizewell C. Sizewell C will be a 3.2-gigawatt power station generating low-carbon electricity for around 6 million homes and will play a key role in our energy future, supplying reliable, clean electricity for at least 60 years.This role will be within theMarine and Tunnels Section.

What will you do?

The purpose of the role is to provide electrical engineering expertise to the project team. The Electrical Engineer will support the design, implementation, and oversight of the electrical systems and infrastructure, ensuring compliance, safety, and performance across the marine and tunnel phase of work.

He will report to the CWA site wide electrical manager in a first step, and he will be based on project office in the Orwell logistic park with regular site visits.

The Electrical Engineer will support the electrical team across the project, responsibilities including but not limited to:

• Prepare technical drawings, specifications, and documentation for the team.
• Design, develop and maintain thorough testing regime for systems on site.
  • Overseeing all electrical aspects and establishment of the TBM, including power supply, control panels, and auxiliary systems.
  • Hands‑on experience setting up Power transformers, Supplies for HV/LT for the TBMs, (Slurry/EPB), Coordinating the Electrical establishment setup at site.
• Commanding knowledge and experience in working out the power consumption of TBM Tunnelling Site (STP, EPB or Dual mode TBMs) including but not limited to STP Establishment Power requirements
• TBM Power requirements
• Conveyor power requirements
• TBM Auxiliary power requirements (Grout Plant, Gantry Cranes, Chiller Plant, ventilation, WTP etc),
• Transformers, grids, power supply units,
• Conduct calculations/simulations to support design decisions.
• Assist technically with installation and commissioning of systems.
• Diagnose and resolve electrical engineering problems and equipment breakdowns.
• Ensure compliance with relevant codes/standards and safety regulations.
• Collaborate with other teams on the project and co-ordinate works.
• Write risk and method statements
• Support and review subcontractors design and implementation planning.

What are we looking for?

Knowledge & Skills

• Project and process management
• Experienced in a similar position and able to demonstrate required knowledge
• Ability to design and troubleshoot electrical systems
• AutoCAD Experience

Qualifications & Experience

• Degree or equivalent in electrical /electronic engineering
• ECS Card
• 17 th /18 th Edition Qualification
• Knowledge of electrical systems, power distribution, and control systems
• Experience with TBMs is Mandatory.
• Experience working within Joint Ventures/Alliances.
• UK major construction experience and associated training.
• Designing electrical systems, including schematics and control panel layouts.
• Installing and commissioning electrical equipment like motors, sensors, and actuators
• PLC Programming and maintenance:

What we will offer you?

The CWA is a single delivery organisation made of up of the client (Sizewell C) and three parent companies - Balfour Beatty, Bouygues and Laing O'Rourke - which offer industry leading packages including market leading salaries, generous annual leave entitlements, pension scheme and other flexible benefits.

About Us

The CWA celebrates the creativity and innovation that comes from a diverse workforce, and we welcome applications from people of all backgrounds — especially those from under‑represented communities. Our project is built on five core values: Humility, Positivity, Respect, Solidarity, and Clarity.
By joining us, you’ll be encouraged to bring your whole self to work, speak up, and share your ideas. We encourage applications from all suitably qualified candidates, regardless of gender, race, disability, age, sexual orientation, gender reassignment, religion or belief, marital status, or pregnancy and maternity.
We are committed to protecting your privacy. If you decide to apply, please avoid including sensitive personal data in your CV.