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 Description

Senior Process Engineer


Staff / Contractor

Assystem provide end state focused nuclear engineering services both individually and as part of an integrated design community – the largest nuclear design house in Europe – delivering major projects, infrastructure, waste, fuel management and safety case solutions.

This mission is critical to the upkeep of the UK’s long term nuclear infrastructure. The nuclear industry is expected to need possibly 100,000 new employees over the next decade. Nuclear in the UK, is seeing a recent renaissance with the UK government pledging its support for both large and small-scale nuclear energy projects.

As our reputation for proficient delivery of complex projects grows even stronger, we have a need for a Senior Process Engineer to join the team in Warrington.

Senior Process Engineer with experience of Nuclear Process Engineering design and producing technical documentation for a major new build project. The role is to provide additional support to the existing Process Intelligent Customer Team.

The role therefore requires a candidate to integrate with the existing Process IC team, bringing previous demonstrable experience in the delivery of full life cycle solutions for significant major projects. To be effective in this role the candidate will require resilience, strong leadership and coordination skills, with the ability to manage priorities and demands.


  • Ideally Chartered Process Engineer
  • Demonstrate strong leadership behaviours to drive timely delivery of an engineering schedule to quality and cost.
  • BPSS minimum, SC Preferred

Due to the nature of work to be undertaken applicants will be required to meet certain residency criteria in order to attain a minimum level of UK security clearance if not already security cleared to a minimum SC level.

We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

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