Assystem is an international company with one mission: accelerate the energy transition around the world.Every day, our 6,500 switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy.We are a collective committed to the actors who are making the energy switch. Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition.Drawing on more than 55 years' experience in highly regulated sectors subject to strict security and safety requirements, we provide our customers with engineering and project management services, as well as digital services and solutions to optimize the performance of complex infrastructure projects throughout their life cycle. The Group is currently ranked second in the world for nuclear engineering.To ensure a viable, efficient, and reliable energy future for all.Job DescriptionYour future team:You will be joining a dynamic and collaborative commissioning team on-site at our Client In Derby which is a Nuclear Licensed Site.This is an exciting opportunity for a contractor looking to contribute to a critical project and work within an embedded team .This role will be based in Derby, Monday – Friday. 2 shifts P/W April-June 2024, then to a 3 shifts P/W June-December 2024.Your Missions: Author and manage commissioning test procedures and prepare safe systems of work Maintain accurate records of test results