Process Engineer

Assystem Warrington, England, United Kingdom

Assystem is an international company with one mission: accelerate the energy transition around the world. Drawing on more than 55 years of experience in highly regulated sectors, we provide engineering and project management services, digital solutions and support for complex infrastructure projects throughout their life cycle.

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• Support cooling water island systems with cutting‑edge analysis and calculation methods.
  
• Perform static & transient flow and thermal analyses using advanced software tools.
  
• Assist in designing and integrating various systems.
  
• Produce, review and update system documentation.
  
• Define control strategies for system performance.
  
• Determine component sizing and perform thermal‑hydraulic calculations.
  
• Formulate detailed equipment specifications.
  

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• Over 55 years in nuclear engineering.
  
• Ranked among the top 3 largest nuclear engineering companies.
  
• Attractive social benefits including an engaging Employee Committee and holiday bonuses.
  
• Ongoing training with numerous career opportunities.
  
• 70 % of managers are promoted internally.
  
• Hybrid work: 1–2 days remote per week.
  

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• Education: Degree in Process or Chemical Engineering, or equivalent.
  
• Strong understanding of fluid mechanics, heat transfer and thermodynamics.
  
• Proven experience in producing design documentation and test specifications.
  
• Proficiency with PIPESIM, Flomaster or other 1‑D CFD software.
  

Due to the nature of the work, applicants must meet UK security clearance criteria.

Full‑time

Warrington, England, United Kingdom

We are committed to equal treatment of candidates and promote and foster all forms of diversity within our company. 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.