ASSYSTEM
Instrumentation & Control Lead Engineer - Commissioning
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Senior I&C Commissioning & Testing Engineer
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 meaningful change. Join us in revolutionising the energy sector and making a global impact.
🤝 Why Join the Community of Switchers?
- Part of one of the top three largest independent nuclear engineering firms globally
- Work on groundbreaking projects pushing the boundaries of innovation
- Contribute to cutting-edge engineering and sustainable energy solutions
Job Description
You will lead and coordinate complex I&C commissioning scopes across multiple integrated nuclear plant systems.
Working within cross-functional teams, you will oversee commissioning delivery through:
- Testing phases
- Integration activities
- Operational readiness
Key Responsibilities
⚙️ Lead I&C commissioning activities—manage end-to-end execution across multiple nuclear plant commissioning scopes 📅 Plan and execute commissioning sequences supporting:
- Energisation milestones
- Handover formalities
- Startup programme deadlines
🧪 Oversee technical testing, including:
- Loop checks
- Functional validation
- Integrated system commissioning
🔍 Assure compliance through rigorous reviews of:
- Commissioning procedures
- Vendor documentation
- Nuclear safety & regulatory requirements
🤝 Collaborate closely with:
- Construction teams
- Operations
- Mechanical & electrical project teams
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🛡️ Maintain compliance with nuclear safety and regulatory standards
🖥️ Support commissioning involving:
- DCS (Distributed Control Systems)
- PLC (Programmable Logic Controllers)
- SIS (Safety Instrumented Systems)
- Field instrumentation
⚠️ Lead resolution activities, including:
- Technical fault-finding
- Issues resolution
- Commissioning risk management
📊 Provide transparent reporting on:
- Commissioning progress
- Readiness assessment
- Risks & project constraints
📋 Manage key deliverables, such as:
- Commissioning documentation
- Punch lists
- Final system handover activities
Requirements
Qualifications & Technical Expertise
🎓 Degree qualified in:
- Instrumentation
- Electrical or Control Systems
- Related engineering disciplines
🏭 Step up your career:
- Extensive commissioning experience—complex regulated or nuclear infrastructure
- Deep expertise in:
- DCS, PLC, SIS systems
- Field instrumentation commissioning
🛡️ Preferred: Experience in nuclear or highly regulated operational environments
👥 Proven leadership:
- Managed multi-scope I&C projects successfully
- Faced and resolved high-stakes commissioning challenges
📏 Technical rigor:
- Strong knowledge of:
- Commissioning procedures
- Compliance standards & testing methodologies
🔒 Process experience:
- Permit-to-work systems
- LOTO (Lockout/Tagout)
- Configuration control
- Change management
Soft Skills & Professional Attributes
🔍 Stakeholder management: Engaging with cross-disciplinary teams effectively
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🗣️ Communication: Clear reporting and collaboration at all project levels
🔧 Troubleshooting: Proven ability to resolve integrated testing & operational readiness issues
📊 Multitasking excellence: Ability to balance multiple concurrent workstreams
About This Role
This position is ideal if you want to shape the UK’s energy future while growing your expertise in advanced nuclear engineering.
Benefits
🏠 Hybrid Working: Flexible office/work-from-home balance 🕒 Flexible Hours: Tailor your schedule to suit your needs 🛡️ Pension Scheme: 8% company contribution / 4% personal 📅 ** holidays:** 25 days’ paid annual leave + bank holidays; buy/sell workdays if needed 💼 Professional Development: Fees reimbursement 💰 Employee Referral Scheme 🤒 Competitive Sick Pay 🏥 Employee Support: Income protection & critical illness cover 💪 Fitness: Free access to Digital Gym & expert-led classes 📞 24/7 Support Line: Mental health, financial & legal advice
Company Values
At Assystem, we celebrate diversity & inclusion—all forms of diversity help us create impactful, forward-thinking solutions. Skills, talent, and bold thinking define us.
ADDITIONAL NOTICE: We never request payments, ask for CV rewrites, or solicit sensitive personal information during recruitment. If you receive such an enquiry, please do not respond and report it.
Assystem Job Category: Engineering / Technical Contract: Permanent Sector: Nuclear
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