Principal EC&I Engineer

Company: Assystem
Apply for the Principal EC&I Engineer
Location: Warrington
Job 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

Principal Electrical, Control & Instrumentation (EC&I) Engineer – lead our most exciting projects across Nuclear, Defence, New Build, and Infrastructure, providing top‑notch technical leadership for high‑profile clients such as Sellafield, Rolls‑Royce, EDF, BAE, F4E, and Hinkley Point.

Responsibilities

  • Lead & Deliver: Guide EC&I engineering teams in delivering innovative solutions for complex projects.
  • Plan & Prioritize: Shape project plans, prioritizing Health & Safety and Environmental standards.
  • Design Reviews: Act as Lead Engineer, overseeing design reviews, technical discussions, and formal evaluations.
  • Support & Collaborate: Provide expert advice, supporting staff and clients through technical challenges.
  • Mentor & Motivate: Mentor team members, set objectives, and foster a collaborative work environment.
  • Optimize: Ensure projects stay on budget and on schedule, working closely with Project Managers.
  • Client Liaison: Serve as the primary technical contact, coordinating with clients throughout each project.

Qualifications

  • Experience: 10+ years in EC&I design and management, with expertise in two areas (e.g., Control Systems, Radiometrics, Functional Safety).
  • Industry Knowledge: Familiarity with highly regulated industries, control systems, design phases, configuration management, and life‑cycle stages.
  • Leadership Skills: Proven abilities in leading teams, managing project complexities, and driving continuous improvement.
  • Qualifications: Degree (or equivalent) in Electrical, Instrumentation, or Control Engineering; advanced degrees are a plus.

Bonus Skills

  • Lab Facility Design: Experience with laboratory facilities and nuclear systems.
  • Electrical Distribution: Expertise in HV/LV electrical systems and modular building projects.
  • Sellafield Experience: Involvement in Sellafield projects or similar environments is a plus.

Security and Clearance

Requires a minimum of a Security Check (SC) clearance without any caveats, and the successful candidate must be a UK national or a dual national from a non‑ITAR country as approved by the MoD.

Equal Employment Opportunity

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.

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Posted: May 17th, 2026