Senior EC&I Engineer

Whitehaven, England, GB On-site Full-time Posted September 15, 2026
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Company Description

Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. 

Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.

Job Description

Senior EC&I Engineer - Whitehaven

Full Time
Join Our Team at Assystem!

🚀 Your Future Team:

Assystem is a well-established leader in the nuclear decommissioning sector. Partner of the Design Services Alliance. Expertise in waste management services for strategic nuclear clients in the UK. Offering life extension and feasibility assessment services.

🔍 Your Missions:

  • Delivery of tasks and support requests to quality and schedule.
  • Maintaining effective communications with a wide variety of stakeholders, from plant-based staff to off-site design teams.
  • Supporting timely responses to Technical Queries and Fault Observations raised by the off-site design teams.
  • Daily liaison with the project team delivering the works.
  • Upward, prompt reporting of issues.
  • Ensure that input to designs are to required standards
  • Ensure that the work is completed to the agreed schedule.
  • Proactive interaction with other disciplines and partners to ensure overall project goals are met. Drive innovative solutions to reduce cost and schedule.
  • Participate in relevant meetings, such as Model Reviews, Design reviews.
  • Support the Lead Engineer where required.

Why Join the Community of Switchers?

  • 🌟 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 our managers are promoted internally!

 

 

Qualifications

🎓 Essential Experience:

  • 🖥️ Educated to HNC / HND or degree in a relevant discipline or a chartered & member of an appropriate institute
  • 📊 Strong client facing skills for Intelligent Customer interactions
  • 💡Nuclear site experience (preferably Sellafield) and operating in a site-based role.
  • 📟Background experience demonstrating a record of successful delivery to timescales.
  • 📐 Experience with installation design packages and instrument datasheets. 
  • 📏 Previous design delivery experience
  • 🌟 Familiarity and experience of working and complying with applicable SL Practices, standards,  and engineering guides
  •  📈 Familiarity with SL systems e.g., Cimage, icePAC, CAESAR, AVEVA
  • 👥 Peferably DV clearance but those with SC will be considered.

Additional Information

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.

 

NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process.

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.

Market insight

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Frequently Asked Questions

Where is the Senior EC&I Engineer job located?
This position is on-site in Whitehaven, England, GB.
Is this a full-time or part-time position?
This is full-time position.
How do I apply for the Senior EC&I Engineer position?
Click the "Apply Now" button on this page to be redirected to ASSYSTEM's official application page. No account on Jooglee is required.
When was this job posted?
This job was posted on September 15, 2026 and is currently listed as active on Jooglee.
Who is hiring for this position?
ASSYSTEM is hiring for this role in Whitehaven, England, GB. Click "Apply Now" to visit their careers page.

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