Senior EC&I Engineer

Assystem is an international company with one mission: accelerate the energy transition around the world.

Every day, our 6,500 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.

Your future team:

We are seeking ahighly capable Senior EC&I Engineer to support and lead engineering activities across a diverse portfolio ofDefence work packages.

This role spans thefull engineering lifecycle — from early requirements and concept development through todetailed design, technical governance and assurance.

As aSenior EC&I Engineer, you will workindependently with minimal supervision, lead small discipline teams, support and mentor engineers, and take responsibility for producinghigh-quality engineering outputs. You will be central to shaping technical solutions, ensuring designs aresafe, compliant, cost-effective, and aligned withclient and regulatory expectations.

Your missions:

🔹 DevelopEC&I and control system concepts from requirements through to detailed design
🔹 Applysystematic engineering methods to ensure safe, compliant and cost-effective designs
🔹 Producetechnical solutions with minimal supervision, meeting client and project needs
🔹 Use strongEC&I engineering knowledge and awareness of relevant technologies
🔹 Apply applicablestandards and regulations, includingBS 7671 andLVD
🔹 Identify, assess and mitigatedesign risks across the engineering lifecycle
🔹 Considerenvironmental impacts in design and implementation decisions
🔹 Supportverification, validation and technical substantiation activities
🔹 Build trust and maintainstrong stakeholder relationships
🔹 Collaborate effectively withmultidisciplinary engineering teams
🔹 Mentor and supportjunior engineers in developing their skills
🔹 Promotegood engineering practice, process adherence and professional standards
🔹 Check and verifyengineering work produced by others

Why join the community of switchers?

🔹  The Group is currently ranked second in the world for nuclear engineering.

🔹 70% of our managers are promoted from within.

🔹 Buy and sell annual leave to make your time off work for you.

🔹 Discount vouchers for days out and restaurants, eye test and glasses vouchers, cycle to work scheme, free flu jabs

Experience/Qualifications:

✅ Adegree in Electrical, Instrumentation or Control Engineering, orHNC/HND with substantial relevant experience
✅ A minimum ofthree years’ experience at Engineer grade or in an equivalent role
✅Membership of a relevant institution (IET, IMC) and working towardsChartered status
✅ Strong experience deliveringEC&I engineering in detailed design environments
✅ Proven ability toindependently develop EC&I technical solutions meeting client and regulatory requirements
✅ Experiencesupervising others, providing technical oversight and leading small engineering teams
✅ Ability tocheck and review engineering work produced by others
✅ Strongcommunication skills, engaging effectively with technical and non-technical stakeholders
✅ Commitment toprofessional development and supporting others to grow their skills

Desirable Experience/Qualifications:

✨ Machinery design compliant with theSupply of Machinery (Safety) Regulations 2008 (Machinery Directive 2006/42/EC)
✨ Experience withnuclear safety cases and classification ofStructures, Systems and Components
✨ Experience withFunctional Safety Standards
✨ Experience working onBIM-enabled projects
✨ Knowledge offront-end safety system design, including legislation, standards and activities such asFMECA, HAZOP and HAZID
✨ Knowledge ofelectrical systems design, including calculations andEMC assessment
✨ Experience ofsoftware, hardware or embedded programming for machinery and process plant control
✨ Knowledge ofinstrumentation design techniques
✨ Experience withobsolescence management

Security clearance:

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.

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.