Tunnel Engineer

Help Shape the UK’s Energy Future

Tunnel 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 the Marine and Tunnels Section.

What will you do?

The purpose of the role is to participate to all technical and engineering topics related to the TBM works.

• Responsible for developing the technical solutions for:
• Temporary tunnel services strategy (pipes, duct, cables, brackets, pedestrian access, conveyor, survey, communication, traffic)
• Power distribution in surface, shafts and tunnels
• Tunnel ventilation
• Water management (supply and recycling)
• Dewatering
• Water treatment
• Compressed air
• Slurry/foam systems
• TBM grout production and testing
• Utility consumption / load assessments
• Coordination with surface infrastructure providers
• Plant integration (gantry cranes, service vehicles, grout plant, conveyors…)
• Preparation of plant and equipment specification
• Prepare production cycles and size the plant and equipment for the required production output
• Preparation of TBM works method statement
• Provides input and supports the procurement team to get into contract with the relevant subcontractors and suppliers
• Participate in the assessment of subcontractors and suppliers offers
• Provides input to the planning team
• Provides input to the cost estimating team

What are we looking for?

Knowledge & Skills

Essential

• TBM work experience minimum 5 years
• Should have participated in definition of plant and equipment for a TBM project
• Knowledge of electrical and mechanical systems for a tunnel project

Desirable

• Knowledge of calculations for sizing metal and concrete structures
• Possess knowledge of lifting and handling operations

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.