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Our Vacancy

Senior Principal EC&I Engineer

  • Nuclear
  • Permanent /
  • Warrington
  • United Kingdom
  • 07/04/26
  • On site
  • Share
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Assystem is an international company with one mission: accelerate the energy transition around the world.


Every day, our 8,000 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 Principal EC&I Engineer

Warrington

Staff – Permanent

⚡ Senior Principal EC&I Engineer

The Senior Principal EC&I Engineer is fully accountable for all electrical, control & instrumentation (EC&I) engineering within their area, ensuring work is safe ✅, compliant 📋, and fit for purpose 🔧 across the full lifecycle.

They provide technical leadership 👷‍♂️, set standards, oversee assurance, and retain responsibility for all engineering decisions (including delegated ones).

🔍 Essential Experience

  • Proven EC&I delivery in regulated, safety-critical environments ⚠️
  • Strong track record of technical accountability & decision-making 🧠
  • Leading multi-disciplinary teams 👥 and resolving complex risks
  • Working with projects, safety, regulators & assurance bodies 🤝
  • Promoting safety, quality & compliance culture 🛡️

⭐ Desirable

Experience as an Senior Principal EC&I Engineer (or equivalent) in nuclear/high-hazard environments ☢️

  • Full lifecycle delivery: concept → commissioning → handover 🔄
  • Knowledge of SEMS & gated engineering processes 📊

My profile

Qualifications

🎓 Essential Qualifications

  • Degree (or equivalent) in Electrical, Control, or Instrumentation Engineering ⚡
  • Extensive EC&I experience suited to a Responsible Engineer role 👷‍♂️
  • Chartered Engineer status 🏅 (or equivalent experience)
  • Ability to meet security clearance & site access requirements 🔐
  • SQEP compliant with SR0696 & ED21 standards 📋

⭐ Desirable Qualifications

  • Fellowship / senior membership 🏆 of a professional engineering body
  • Training in nuclear safety ☢️, functional safety 🛡️, or systems engineering 🔧
  • Postgraduate qualification 🎓 in engineering or management

 

Whilst we encourage applications from all nationalities, Assystem within the UK are subject to security and export control restrictions due to the nature of work to be undertaken.  
 
These restrictions mean that factors including your nationality, any previous nationalities you have held, and/or your place of birth may limit those roles that you can perform for the organisation. 

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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