Company Description
⚡️💡 About Assystem
At Assystem, our mission is to accelerate the energy transition worldwide. Our 8,000 Switchers blend 55+ years of engineering excellence with cutting-edge digital technologies to drive this change. Operating across 13 countries, we lead major programmes in nuclear, renewable energy, grid modernisation, and hydrogen — supporting the delivery of secure, low-carbon power for future generations.
Join a company ranked among the top three nuclear engineering firms globally, and play your part in delivering the UK’s next generation of nuclear infrastructure.
🤝 Why Join the Community of Switchers?
Be part of a forward-thinking global community committed to transforming the energy landscape. At Assystem, you’ll work on some of the UK’s most ambitious low-carbon infrastructure programmes — including the nation’s first new nuclear power station in a generation. Here, innovation, collaboration, and technical excellence drive everything we do.
Job Description
🚀 The Mission
As a Project Manager, you’ll support the delivery of one of the UK’s most complex and high-profile nuclear new build projects. Working within a multidisciplinary environment, you’ll take responsibility for ensuring that engineering, procurement, manufacturing, construction, and commissioning activities are delivered safely, on schedule, to budget, and in alignment with technical and regulatory requirements.
Reporting to a Senior Project Manager, you'll manage a defined contract or work package — typically valued between £250k and £150m — and drive performance across safety, quality, time, and cost.
🔧 Key Responsibilities
Support resource planning to ensure SQEP personnel are assigned and identify any capability gaps.
Assist the Senior Project Manager in developing and executing strategies in line with the Programme Execution Plan (PEP).
Maintain clear communication channels across stakeholders and support delivery of PEP strategies within your contract/work package.
Drive safe and timely delivery of activities, monitoring progress against schedule, budget, KPIs, and milestones.
Anticipate, manage, and resolve delivery issues within the contract/package and escalate where required.
Work collaboratively to develop and maintain Level 3 and Level 4 schedules aligned with overall project planning.
Maintain and update programme budgets, risk logs, and change control documentation.
Apply lessons learned and support continuous improvement across the programme.
Interface with parallel workstreams to maintain a unified project view and promote best practice adoption.
Ensure compliance with contractual obligations and escalate concerns to the Senior PM when necessary.
Qualifications
🛠 Essential Skills & Experience
Strong understanding of leadership principles within complex project environments.
Working knowledge of CDM Regulations.
Proven analytical, numerical, and problem-solving capability.
Practical experience in estimating, scheduling, risk, and programme control.
Knowledge of nuclear quality standards and assurance processes.
Demonstrated experience in:
Engineering design, contract, and construction execution.
Multi-discipline EPCM project delivery.
Procurement and management of complex contracts.
Managing cost, risk, schedule, and change.
Managing commercial claims and supporting negotiations.
Stakeholder management experience across contractors, consultants, and regulators.
Experience working with NEC and FIDIC contract frameworks.
Fluent in English (French desirable).✔️ Desired Skills
Degree in engineering, construction, or related discipline.
Professional project management qualification (e.g., APM PPQ, PMI).
Experience in nuclear, defence, or other highly regulated sectors.
Additional Information
🌟 Why Apply?
This is a rare opportunity to contribute directly to the UK’s nuclear renaissance and play a key role in building the nation’s future low-carbon energy supply. At Assystem, you’ll join an inclusive, dynamic environment where your expertise will help drive innovation, shape world-class engineering solutions, and support one of the most significant clean-energy projects of our time.
💼 Benefits Include:
Pension scheme — 8% employer / 4% employee
25 days’ annual leave + bank holidays + option to buy/sell
Flexible working
Professional fees reimbursed
Employee referral scheme
Inclusive and supportive work culture committed to diversity and equalityWe 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.
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