Instrumentation & Control Lead Engineer - Commissioning

⚡️ About Assystem

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.

⚙️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

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 include:

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!

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.