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Our Vacancy

Lead Process Engineer

  • Nuclear
  • Permanent /
  • Warrington
  • 18/04/24
  • On site

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

Lead Process Engineer

Warrington / Whitehaven

Permanent / Contract (Inside IR35)

The PPF project is providing a facility to safely release gas from potentially presurised packages of SNM, managing potential hydrogen and contamination hazards. There are to be facilities for both and and low pressure packages within a new glovebox and also the facility to decant and sort the material contents of the packages.  The glovebox will be inerted using a new nitrogen supply.  The project is currently in the detail design phase.


The SMP storage project is looking at taking a signiciant inventory of SNM packages from several locations and safely store them in the existing DESF store for an interim period prior to their reworking through another plant in the future. Management of hydrogen and other hazards is at the core of this project also, and much of the work is building the case for a change in use of the existing store.  This project is currently in the concept/prelim design phase.

To lead an existing and expanding team working across two projects in the SNM area, looking at:

  • Management of chemical, DSEAR, chemotoxic and radiological hazards
  • Development of nitrogen intering system
  • Working with specialist supply chain
  • Engagement with SNM Technical team
  • Engagement with key stakeholders
  • Identfication and management of key project risks

My profile

Essential Experience & Qualifications

  • Degree qualified in Chemical Engineering (or equivalent engineering discipline)
  • Chartered Chemical Engineer with IChemE/EC.
  • Experience of nuclear industry design delivery
  • Proactive and driven approach to work.
  • Good communication skills
  • Experience of leading a team of Process engineers
  • Experience of working with other disciplines and key stakeholders
  • Competent report writing skills: clearly and concisely reporting findings.
  • Comfortable working under time and cost constraints.
  • Experience of producing estimates and inputting to / reporting against schedules.
  • DSEAR / hydrogen management experience.

Desirable Experience & Qualifications / Additional information (e.g  Radiological Status Requirements)

  • Experience with Sellafield Ltd checking and approval procedure

Security Clearance:

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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