Principal EC&I Engineer

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

As a Principal EC&I Engineer, you’ll play a key role in delivering some of our most exciting and complex projects. You’ll provide technical leadership across Electrical, Control & Instrumentation (EC&I) disciplines, supporting a diverse portfolio of high-impact programmes.

🔑 Key Responsibilities

🔹 Technical Leadership

• 🧠 Lead EC&I engineering delivery for complex systems and projects
• 🏗️ Act as Lead Engineer on large-scale projects and support project planning
• 🔍 Chair design reviews and lead technical discussions
• 📊 Prepare and present technical reports and presentations

🔹 Project Delivery & Governance

• ⚙️ Ensure compliance with standards such as BS7671, IEC 61508, CDM Regulations & Machinery Directive
• 🛡️ Prioritise and enforce Health, Safety & Environmental requirements
• 📈 Support project cost, schedule, and quality delivery
• 📝 Contribute to tenders, including technical and risk assessments

🔹 Team Leadership & Development

• 👥 Lead, mentor, and supervise engineering teams
• 🎯 Set objectives, monitor performance, and provide constructive feedback
• 🤝 Support collaboration across disciplines and stakeholders
• 🌱 Guide and develop junior engineers

🔹 Client & Stakeholder Engagement

• 🔗 Act as the technical interface between clients and internal teams
• 💬 Support design reviews and resolve technical queries
• 📢 Represent the business in technical communications

🔹 Continuous Improvement

• 🔄 Drive process improvements and efficiency initiatives
• 📚 Stay updated on emerging technologies and industry best practices
• 🧩 Contribute to QMS procedures and compliance

Qualifications

Essential Requirements

🎓 Qualifications

• Degree in Electrical, Control, or Instrumentation Engineering (or HNC/HND with significant experience)
• 📘 Evidence of Continuous Professional Development (CPD)
• 🏅 Membership with the IET (or working toward Chartered status)

🛠️ Experience

• ⏳ 10+ years in EC&I engineering within regulated industries
• 🔌 Strong expertise across EC&I disciplines, with specialism in at least two areas
• 🔄 Experience across full project lifecycle phases
• 📐 Knowledge of control systems design (V-cycle, verification & validation)
• 🗂️ Experience with configuration and documentation management
• 🤝 Proven collaboration with project management teams

⭐ Desirable Skills

• 🌐 Experience in nuclear or high-hazard industries
• 🛡️ Knowledge of Safety Instrumented Systems & functional safety standards
• 📜 Familiarity with ONR Licence Conditions
• 🏗️ Experience with BIM-enabled projects
• ⚡ Electrical design, calculations & EMC assessment knowledge
• 💻 Software, hardware, or embedded control systems experience
• 🔬 Understanding of HAZOP, HAZID, FMECA processes
• 🔄 Experience with obsolescence management

Additional Information

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.

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.

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.