Instrumentation and Controls Commissioning engineer

Instrumentation and Controls Commissioning engineer

• Full-time
• Type of contract: Permanent
• Sector: Nuclear

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 nuclear infrastructure projects, subject to high safety and security requirements.

Assystem mobilises 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.

Why Join the Community of Switchers?

You will join your future team supporting one of the UK’s most significant nuclear construction programmes. This is a chance to work at the sharp end of commissioning, where safety, precision and engineering judgement genuinely matter.

The Job Mission

This is a hybrid role requiring regular presence in Bridgwater or Bristol, with relocation support available. Candidates must be within commutable distance or willing to relocate.

You will support early‑stage commissioning activities, focusing on readiness, coordination and technical assurance.

• Support preparation activities ensuring instrumentation systems are ready for commissioning execution
• Provide technical input into calibration activities alongside technicians and specialist suppliers
• Assist identification and assessment of spare parts requirements for commissioning phases
• Contribute to development and review of commissioning procedures and test documentation
• Coordinate commissioning and calibration activities with internal teams and external suppliers
• Provide instrumentation expertise to mechanical and process teams during system troubleshooting
• Identify risks, report issues, and support mitigation and resolution activities
• Track progress of assigned commissioning tasks and maintain accurate status records
• Collaborate with multidisciplinary teams to ensure safe and efficient commissioning delivery

Nuclear experience

Nuclear experience is not essential, but is of course welcome. If you have worked within a highly regulated environment, your skills and approach are highly transferable and of strong interest to us.

We also recognise that the perfect candidate rarely exists. If you feel you meet around 80% of the criteria and are motivated to develop further, we would strongly encourage you to apply.

Qualifications

• Degree or HNC in Instrumentation, Control, Electrical or similar discipline
• Experience in commissioning or pre‑commissioning within regulated industrial environments
• Strong understanding of PLC, DCS, and field instrumentation systems
• Ability to interpret P&IDs, loop diagrams, and control system documentation
• Experience supporting calibration, testing, or system validation activities
• Knowledge of commissioning processes, documentation, and quality requirements
• Ability to work effectively within multidisciplinary engineering teams
• Understanding of safety requirements within complex, safety‑critical environments

Why Apply?

This role offers hands‑on involvement in commissioning safety‑critical I&C systems on one of the UK’s most significant nuclear programmes. You will build deep commissioning capability, work alongside experienced specialists, and strengthen your long‑term career within a global engineering organisation delivering nationally important infrastructure.

Benefits

• Hybrid working opportunity
• Flexible working hours
• Market leading 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

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.

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