Sizewell C - The Power of Good for Britain
Site Operations Water- Assistant Project Manager
Location: Sizewell C, Leiston, Suffolk (onsite 4/5 days per week)
Contract: Permanent, full-time
Salary: £50,000-£60,000 per annum, depending on experience plus benefits
Benefits include:
- Annual Leave: 28 days per annum, increasing to 30 days after 5 years of service, plus bank holidays.
- Bonus: Up to 5% annual bonus.
- Pension Contributions: Defined Contribution Pension Scheme with up to 7.5% employee contribution -15% employer contribution.
- Flexible Benefits: Additional allowance for a variety of benefits including.
Closing Date: Monday 11 May 2026.
About Sizewell C
Sizewell C is one of the UK’s most significant infrastructure projects, delivering low carbon energy for generations. Joining us means contributing to a project of national importance, supporting energy security, regional growth, and long-term skilled employment.
About the Role
The Site Operations Water (Utilities) Assistant Project Manager (APM) supports the Utilities Service Delivery Manager in coordinating and managing utilities operations and maintenance across the site.
You’ll oversee contractor teams delivering both temporary and permanent utilities services, ensuring the safe and efficient running of assets such as:
- Minor electrical systems
- Surface and foul water treatment plants
- Foul and surface water drainage systems
- Potable water storage facilities
- Potable water networks (inc. hydrants)
- Ground water abstraction systems
You’ll support the full lifecycle in a fast‑paced environment from feasibility to construction and operational phases while promoting strong safety, environmental, and quality standards.
This is an excellent role for someone experienced in utilities O&M within large, regulated infrastructure projects.
Key Responsibilities
- Assist and manage day to day delivery of critical utilities support services
- Work with the Utilities Service Delivery Manager to meet budget and schedule requirements
- Ensure compliance with safety, regulatory and statutory standards
- Build strong working relationships with contractors and stakeholders
- Support temporary design and design changes
- Coordinate minor works with neighbouring contractors
- Ensure contractor competencies and address skills gaps
- Produce plans that meet project expectations and service requirements
- Provide early intervention to resolve issues and maintain service continuity
Principal Accountabilities
- Support utilities service provision to a large construction workforce
- Support contract budget control (up to £100m)
- Manage key internal and external stakeholders
- Report on progress, risks, SLAs, KPIs, forecasting and planning
- Support delivery of the Programme Execution Plan (PEP)
- Identify, manage, and mitigate risks
Knowledge, Skills & Experience
Essential
- Management/leadership experience in highways, utilities or similar construction service environments
- Experience in high security and regulated settings
- Proven experience leading multiple teams
- Knowledge of water regulation
- Strong communication and stakeholder skills
- Ability to work in a dynamic, fast paced project environment
- Experience in large, complex project environments
- Proficiency with: MS Project, AutoCAD, Office Suite, Outlook, GIS, Asset Management Systems, Field Reporting Apps, SharePoint.
- Strong interpersonal and teamwork skills
Education
- Degree in Civil Engineering, Environmental Engineering, Management Engineering or similar construction related discipline.
Desirable
- IOSH Managing Safely / NEBOSH General Certificate
- CSCS card
- NEC3/NEC4 contract awareness
- Customer service, conflict resolution, negotiation or leadership training
Useful Experience
- Statutory permits & licences
- Quality assurance
- Budget development and control
- Contractor coordination
- Scheduling, risk logs, documentation
- Supporting technical and site teams
Why Join Sizewell C?
Join a nationally significant infrastructure programme where you’ll help deliver critical utilities services, work with industry leading systems, and contribute to the long term energy future of the UK.
Apply Now
Be part of something extraordinary. Apply today.
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