Site Sustainability Advisor Lead

Sizewell C; Leiston; On-site; GBP 60,000 - 80,000; Full time

Job summary

A nuclear new build project in Suffolk is seeking a Site Sustainability Advisor Lead to manage sustainability strategies at the Sizewell C site. This role includes leading a team of advisors, ensuring regulatory compliance, and driving initiatives for carbon reduction and resource efficiency. Candidates should have relevant degrees, significant experience in sustainability, and strong data skills. Join us to contribute to a groundbreaking project aimed at powering millions of homes.

Benefits

28 days annual leave

Up to 5% annual bonus

Defined Contribution Pension Scheme

Flexible benefits allowance

Qualifications

• Degree-qualified in a related field.
• Significant experience in a senior sustainability role.
• Deep knowledge of UK environmental legislation and sustainable construction standards.
• Proven ability to influence within a multi-stakeholder environment.
• Experience managing or mentoring a team.
• Comfortable in a dynamic, site-based environment.
• Desirable membership of a relevant professional body.
• Strong data and reporting skills using digital tools.
• Experience with an EMS conforming to standards.
• Experience of PAS 2080:2023.
• Recent experience under Environmental Permitting Regulations.
• Awareness of client/contractor relationships and legal responsibilities.

Responsibilities

• Act as the primary point of contact for sustainability matters.
• Lead a team of advisors and engage with contractors.
• Oversee implementation of the project’s Sustainability Strategy.
• Ensure compliance with regulatory and corporate expectations.
• Support objectives around carbon reduction and biodiversity.
• Identify opportunities for innovation and improve performance.

Skills

Senior sustainability expertise

Knowledge of UK environmental legislation

Data & reporting skills

Team management

Influencing skills

Education

Degree in Sustainability, Environmental Science, Engineering

Job description

As Site Sustainability Advisor Lead, you will be the primary point of contact for all sustainability matters on the Sizewell C site. You will lead a team of advisors, engage directly with contractors, engineers, and delivery partners, and oversee the implementation of the project’s Sustainability Strategy at a ground level. Ensure compliance with regulatory and corporate expectations. Your work will directly support the delivery of key objectives around carbon reduction, resource efficiency, circular economy principles, biodiversity, and social value. You’ll also be instrumental in identifying opportunities for innovation, improving performance through data, and ensuring the project meets both regulatory and corporate expectations.

Qualifications

• Degree‑qualified in Sustainability, Environmental Science, Engineering, or a related field.
• Significant experience in a senior sustainability role within a major infrastructure or construction environment.
• Deep knowledge of UK environmental legislation, sustainable construction standards, and reporting frameworks.
• Proven ability to influence and lead in a complex, multi‑stakeholder environment.
• Experience managing or mentoring a team of professionals.
• Comfortable working in a dynamic, site‑based environment with evolving priorities.
• Membership of a relevant professional body (e.g. IEMA, CIWEM, ICE) is desirable.
• Strong data and reporting skills, with experience using digital tools to track and analyse environmental performance.
• Experience of operating within an environmental management system (EMS) conforming to recognised standards (BS EN ISO14001:2004), including the development of procedures to meet the requirements of the EMS.
• Experience of PAS 2080:2023 (Carbon Management in Buildings and Infrastructure).
• Recent experience working in an environment role under Environmental Permitting Regulations.
• Awareness of the client/contractor relationship and legal responsibilities under the Construction (Design and Management) Regulations 2015.

Why Join Us?

This is a pivotal role in the success of Sizewell C. You’ll be joining the project at a critical stage, with the opportunity to grow alongside it. Be part of a team that values innovation, safety, and excel‑lence and help deliver a project that will power millions of homes for generations. Are you ready to take the next step in your career?

Are you looking for a career which is rewarding, at the cutting edge of project development and where you can really make a difference? Come and join our expanding Sizewell C (SZC) team and work on one of the most exciting and largest megaprojects in the UK, whilst being at the forefront of the UK's climate change agenda and energy policy. Following on from the success of Hinkley Point C (H the SZC Project is a nuclear new build project in Suffolk, which has obtained planning approval and Government financing support. The project has started construction and is now seeking private investment. When completed, it will provide dependable electricity to 6 million homes for 60 years, which along with renewables, will support Britain to achieve Net Zero by 2050. Sizewell C Limited (Sizewell C) is a nuclear site licensed company whose business is to design, finance, construct, commission, operate, maintain, and eventually decommission the nuclear power plant and related infrastructure at Sizewell C in Suffolk. Sizewell C was formerly under the majority ownership of the EDF Group but is currently majority owned by HM Government and operates as an independent company. EDF remains a key shareholder in Sizewell C and the business therefore maintains close links to EDF as a part of its 'nuclear family'.

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.