Building Site Manager jobs in United States

Location: Leiston, Suffolk (Onsite - 5 days a week).

Job Type: Full-time, Permanent

Salary: £70,000 - £85,000 per annum, plus benefits.

• 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.

Wednesday 4th February 2026.

Sizewell C is more than a new nuclear power station, it is a cornerstone of the UK's clean, secure energy future. Joining our team means contributing to one of the most significant low‑carbon infrastructure projects in the country, shaping sustainable energy for generations to come.

We are now seeking experienced Project Managers, ideally from construction, commercial, or major infrastructure sectors, to support the Site Establishment team during an exciting and pivotal phase of the project.

As a Delivery Project Manager- Site Establishment, you will lead and coordinate the full life cycle delivery of assigned contracts or work packages across engineering, procurement, manufacturing, construction, and commissioning activities.

Your leadership will ensure that all work is delivered safely, on schedule, within budget, and to the highest quality standards. You will also play a key role in effective contractor management, stakeholder engagement, and reporting across multiple workstreams.

• Lead, manage, and coordinate on‑site project activities to ensure programme, cost and quality targets are achieved.
• Drive project performance using best‑practice project management methodologies.
• Manage contractors and subcontractors, maintaining high standards of safety, compliance, and productivity.
• Work collaboratively with the Senior Project Manager, Commercial and Procurement teams to develop sourcing strategies and tender documentation.
• Provide comprehensive weekly and monthly reporting, including updates on H&S, progress, cost, environmental performance, stakeholder engagement and production rates.
• Respond to tender clarifications, participate in supplier meetings, and contribute to technical tender reviews.
• Work cross‑functionally with other projects and programmes to ensure alignment and adoption of best practices.
• Identify and manage risks proactively, ensuring smooth progression of project activities from initiation to delivery.

• Proven Project Management experience in major construction, civil engineering or infrastructure projects (approx. £18m-£100m+).
• Strong leadership, stakeholder management, and communication skills.
• Demonstrable experience working under NEC contracts in multi‑programme environments.
• Relevant qualifications such as NEC3/4, civil engineering, construction management, project management, or similar.
• Ability to manage complex issues, drive performance, and maintain momentum in a fast‑paced environment.
• Excellent problem‑solving abilities with a proactive, solutions‑focused approach.
• Strong experience with programme development and resource management.
• Ability to foster collaboration within local supply chain networks and support a "one team" ethos.

• Be part of a nationally significant project shaping the UK's low‑carbon future
• Career development and training opportunities
• A collaborative, inclusive, and forward‑thinking working culture
• The opportunity to contribute to infrastructure that will power Britain for decades

Be part of something extraordinary. Help us build the future of Britain's clean energy.

Join the team at Sizewell C. Our vision is to Lead The Way On Nuclear.

The Sizewell C team is one of the most exciting and largest new megaprojects in the UK, whilst being at the forefront of the UK's climate change agenda and energy policy. We have begun constructing a 3.2‑gigawatt nuclear power station on the Suffolk coast in the East of England replicating, wherever possible, the design used for Hinkley Point C, another nuclear power station being built in Somerset.

When built, Sizewell C will be one of the largest power stations to operate in the UK. The power station will generate low carbon electricity for at least 60 years, supplying over 6 million homes and supporting around 7% of the UK's current electricity needs.Our vision is to Lead The Way On Nuclear. We want Sizewell C to define what good leadership for the nuclear industry and British infrastructure looks like and deliver on it. We understand the feats of organisation, logistics, collaboration and imagination that building nuclear requires. We are building for the next generation for their home‑grown energy, energy price stability and ultra‑low carbon power in abundance. We also want to set the benchmark for maximising long‑lasting social value as we build and demonstrate how smart collaboration can work for the benefit of communities - locally, regionally and nationally.

We are the first nuclear power station in the UK to be funded under the Regulated Asset Base funding model (RAB). Our largest shareholder is the UK Government, alongside equity partners La Caisse, Centrica, EDF and Amber Infrastructure.

Sizewell C operates within a complex and fast‑moving stakeholder environment, engaging with a wide range of partners including government bodies, regulators, local communities, supply chain partners, and international collaborators. This makes Sizewell C a uniquely stimulating place to work - where navigating evolving priorities, balancing interests, and building trusted relationships is just as critical as technical excellence. For those who thrive in dynamic, multi‑dimensional settings, it offers unmatched professional challenge and growth.

When joining Sizewell C, you may wonder why you are contacted by colleagues with an EDF email or see the EDF logo on portals that you access and/or documentation you receive; this is because we have partnered with EDF for the provision of a number of support services whilst we complete a successful transition out of the EDF group.

At Sizewell C we encourage and embrace diversity and how it can improve our experience and performance at work. It is a requirement that those who join us have the right to work in the UK. Whilst sponsorship may be a possibility that we can explore, we are fully committed to local recruitment where possible, and those already holding the right to work in the UK.

To be appointed to this role, you will need to meet the criteria for Security Vetting, which will, ordinarily, require you to have been a resident of the UK for at least three of the past five years.

By submitting an application to this role, you acknowledge that you have read and understood Sizewell C's employee privacy policy and EDF's employee privacy policy. Just to let you know, EDF will be processing and sharing information about your application on behalf of Sizewell C.