Instrumentation & Control Commissioning Lead Engineer
* Full-time
* Type of contract: Permanent
* Sector: Nuclear
At Assystem, our mission is to accelerate the energy transition worldwide. Our 8,000 Switchers blend historical engineering expertise with cutting-edge digital technologies to drive this change. Join us in revolutionizing the energy sector and making a significant global impact.
Why Join the Community of Switchers?
Be part of one of the top three largest independent nuclear engineering companies globally. At Assystem, you’ll contribute to groundbreaking projects that push the boundaries of innovation and engineering excellence. Join a community committed to driving forward the future of energy.
You will lead and coordinate complex I&C commissioning scopes across multiple integrated nuclear plant systems.
Working within your future team, you will oversee commissioning delivery through testing, integration, and operational readiness phases.
Responsibilities
* Lead I&C commissioning activities across multiple nuclear plant commissioning scopes
* Plan commissioning sequences supporting energisation, handover, and startup programme milestones
* Oversee loop checks, functional testing, and integrated system commissioning activities
* Review commissioning procedures, vendor documentation, and nuclear compliance requirements thoroughly
* Coordinate closely with construction, operations, mechanical, and electrical project teams
* Ensure commissioning activities comply with nuclear safety and regulatory expectations
* Support commissioning activities involving DCS, PLC, SIS, and field instrumentation systems
* Lead technical fault finding, issue resolution, and commissioning risk management activities
* Provide clear reporting on commissioning progress, readiness, risks, and project constraints
* Manage commissioning documentation, punch lists, and final system handover activities
Qualifications
* Degree qualified within Instrumentation, Electrical, Control Systems, or related engineering discipline
* Extensive commissioning experience across complex regulated industrial or nuclear infrastructure projects
* Strong knowledge of DCS, PLC, SIS, and field instrumentation commissioning activities
* Previous experience working within nuclear or highly regulated operational environments preferred
* Proven leadership experience managing multi-scope I&C commissioning teams successfully
* Strong understanding of commissioning procedures, compliance standards, and testing methodologies
* Knowledge of permit-to-work, LOTO, configuration control, and change management processes
* Excellent communication and stakeholder management skills across multidisciplinary delivery teams
* Experience supporting fault finding, integrated testing, and operational readiness activities
* Ability to manage commissioning priorities across multiple concurrent project workstreams
Additional information
Join us at Assystem and be part of a global team delivering some of the most exciting and complex engineering projects in the world. This is your chance to shape the UK’s energy future while developing your expertise in a unique environment.
Benefits
* Hybrid Working Opportunity
* Flexible working hours
* Pension scheme (8% company contribution / 4% personal contribution)
* 25 days’ paid annual leave + bank holidays + option to buy or sell days
* Professional fees reimbursed
* Employee referral scheme
* Competitive Sick Pay – Support when you need it
* Income Protection & 3x Salary Death-in-Service Cover
* Free Digital Gym Access – Expert-led fitness classes
* 24/7 Employee Support Line – Mental health, financial & legal help
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.
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.
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