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 third in the world for nuclear engineering.

To ensure a viable, efficient, and reliable energy future for all.

Commissioning Manager 

This role is all about making sure new infrastructure and equipment are ready, safe, and approved for operational use.

🔑 Key Purpose

You’ll act as the main link between project teams and operational users, ensuring everything is properly commissioned, compliant, and aligned with organisational rules.

🛠️ What You’ll Do

• 🔄 Coordinate commissioning activities from design through to handover
• 🤝 Liaise between engineers, contractors, and operational teams
• 📋 Ensure compliance with safety, regulatory, and operational standards
• 📊 Track progress & report status to leadership
• ⚠️ Identify risks (RAIDO) and develop mitigation plans
• 🗂️ Maintain accurate commissioning records
• 🧩 Integrate commissioning into project schedules and design phases
• 🧪 Support testing phases like Factory & Harbour Acceptance Trials

🧠 During Design Phase

• Ensure systems are designed to meet operational, safety, and regulatory needs
• Work closely with design teams to embed commissioning requirements early

📍 Working Setup

• Hybrid role: 🏢 Office (Glasgow & Helensburgh) + 🏠 Home.  
• ✈️ Occasional travel to other sites and suppliers further on in the project

👥 Future Scope

• Potential to lead and manage a team of Commissioning Engineers

✅ Essential Skills & Experience

• 🧑‍🔧 10+ years in a technical role, with experience as a Commissioning Manager (or similar)
• ☢️ Nuclear industry experience (licensed/authorised environments) with strong knowledge of:
  • Risk management ⚠️
  • Quality assurance 📋
  • Commissioning standards 🛠️
• 📐 Ability to read and produce technical documents (drawings, reports, specs, plans)
• 🗣️ Strong communication skills (written & face-to-face)
• 🤝 Works well independently and in teams
• 📅 Highly organised, able to manage deadlines across multiple contributors

⭐ Desirable Skills & Experience

• 🎓 Chartered Engineer status (or working towards it)
• 🔄 Understanding of engineering lifecycle (CICWP)

💡 In Short

They’re looking for someone experienced, organised, and confident, with strong nuclear-sector knowledge and the ability to lead commissioning from planning to delivery.

Staff or umbrella contract role

SC Clearance to start

Sole UK nationals only

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.