The Geotechnical Sub Alliance (GSA) is at the forefront of the Sizewell C nuclear power station development - one of the UK’s largest and most exciting infrastructure programmes.

We’re responsible for preparing the foundations of the entire site: designing and constructing cut‑off walls, retaining structures, soil improvements and more. Using advanced geotechnical engineering and world‑class construction technologies, this is a rare opportunity to contribute to a national project that will shape the UK’s clean‑energy future.

The Role

The Cost Controller plays a key role in ensuring robust financial governance across the GSA programme within a complex joint‑venture environment.

You will be responsible for monitoring project costs, supporting audit and compliance activities, and providing accurate reporting and forecasting in line with NEC contract requirements. The role works closely with finance, commercial and delivery teams to ensure strong cos...