Company Description
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.
Job Description
Your future team :
We are seeking a highly capable Senior EC&I Engineer to support and lead engineering activities across a diverse portfolio of Defence work packages.
This role spans the full engineering lifecycle — from early requirements and concept development through to detailed design, technical governance and assurance.
As a Senior EC&I Engineer, you will work independently with minimal supervision, lead small discipline teams, support and mentor engineers, and take responsibility for producing high-quality engineering outputs. You will be central to shaping technical solutions, ensuring designs are safe, compliant, cost-effective, and aligned with client and regulatory expectations.
Your missions :
Develop EC&I and control system concepts from requirements through to detailed design
Apply systematic engineering methods to ensure safe, compliant and cost-effective designs
Produce technical solutions with minimal supervision, meeting client and project needs
Use strong EC&I engineering knowledge and awareness of relevant technologies
Apply applicable standards and regulations, including BS 7671 and LVD
Identify, assess and mitigate design risks across the engineering lifecycle
Consider environmental impacts in design and implementation decisions
Support verification, validation and technical substantiation activities
Build trust and maintain strong stakeholder relationships
Collaborate effectively with multidisciplinary engineering teams
Mentor and support junior engineers in developing their skills
Promote good engineering practice, process adherence and professional standards
Check and verify engineering 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
Qualifications
Experience / Qualifications :
A degree in Electrical, Instrumentation or Control Engineering, or HNC / HND with substantial relevant experience
A minimum of three years’ experience at Engineer grade or in an equivalent role
Membership of a relevant institution (IET, IMC) and working towards Chartered status
Strong experience delivering EC&I engineering in detailed design environments
Proven ability to independently develop EC&I technical solutions meeting client and regulatory requirements
Experience supervising others, providing technical oversight and leading small engineering teams
Ability to check and review engineering work produced by others
Strong communication skills, engaging effectively with technical and non-technical stakeholders
Commitment to professional development and supporting others to grow their skills
Desirable Experience / Qualifications :
Machinery design compliant with the Supply of Machinery (Safety) Regulations 2008 (Machinery Directive 2006 / 42 / EC)
Experience with nuclear safety cases and classification of Structures, Systems and Components
Experience with Functional Safety Standards
Experience working on BIM-enabled projects
Knowledge of front-end safety system design, including legislation, standards and activities such as FMECA, HAZOP and HAZID
Knowledge of electrical systems design, including calculations and EMC assessment
Experience of software, hardware or embedded programming for machinery and process plant control
Knowledge of instrumentation design techniques
Experience with obsolescence management
Additional Information
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
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