Full job description Sizewell C’s business is to design, finance, construct, commission, operate, maintain, and eventually decommission the nuclear power plant and related infrastructure at Sizewell C in Suffolk. Overall, whilst the Company is in the construction phase, the Boards’ principal focus is on the development and construction of Sizewell C on time, on budget and to the highest quality and safety standards. The Company is maturing to meet all these requirements.
Sizewell C is economically regulated by OFGEM under the Regulated Asset Base (RAB) model similar to other UK electricity distribution networks and Thames Tideway.
Sizewell C construction strategy is to replicate the design of Hinkley Point C, using the majority of the same supply chain, but innovating in the way it is delivered to achieve savings in time and cost of around 20%. The CCO will need to be guided by and incorporate lessons learned from the Hinkley Point C commercial delivery to achieve Sizewell C’s ambition.
Following Financial Completion and Revenue Commencement, Sizewell C is fully funded and is owned by; The Secretary of State for Energy Security and Net Zero representing HM Government, La Caisse, Centrica, EDF and Amber Infrastructure.
Sizewell C is entering an exciting phase of growth as we mature into an independent organisation and continue building one of the UK’s largest and most important energy projects. We are now recruiting the below position.
Environmental Advisor
Location: Leiston Suffolk, 5 days a week onsite

Contract: Permanent, full-time.
Salary: £50,000 -£57,000 - depending on experience
Benefits:
*5% CIP Bonus
*28 days holiday plus bank holidays
*Pension up to 15% employer contribution
*Professional development opportunities
*Flexible benefits
Closing date: Sunday 8 November 2026
Help shape one of the UK’s most significant infrastructure projects
Are you passionate about environmental protection and looking for the opportunity to make a real impact on a major construction project?
We’re looking for an experienced Environmental Advisor to join the Sizewell C Construction Delivery Team in Leiston.Working at the heart of the project, you’ll collaborate with our construction teams and Tier 1 Partners to drive environmental performance, support sustainable delivery and ensure compliance with environmental legislation, permits and regulatory requirements.
What you’ll be doing
As an Environmental Advisor, you’ll:
*Carry out site inspections across contractor work areas, identifying and reporting environmental issues.
*Provide practical advice on UK environmental legislation, permits and planning constraints.
*Review contractors’ Environmental Management Plans and RAMS, ensuring compliance with project standards and environmental requirements.
*Support environmental audits and self-assessments across construction activities.
*Investigate environmental incidents and recommend actions to prevent recurrence.
*Work collaboratively with contractors and project teams to promote environmental best practice.
*Identify and escalate environmental and contractual risks appropriately.
What we’re looking for
You’ll ideally bring:
*Experience in an Environmental Management or Environmental Advisor role within a construction, infrastructure or industrial environment.
*Strong knowledge of UK environmental legislation relevant to construction or industrial projects.
*Experience working with an Environmental Management System (EMS) and ISO 14001 principles.
*Understanding of the client/contractor relationship and CDM Regulations 2015.
*A degree or equivalent qualification in an environmental or related discipline.
*Strong communication, interpersonal and influencing skills.
*Confidence working independently in a busy, site-based construction environment.
Ready to make an impact?
Apply today and help us build a more sustainable future at Sizewell C.
Behavioural Competences
Humility
*Recognise the value brought from different cultures and experiences
*Be open to other’s points of view and ideas, be willing to debate and to compromise
Positivity
*Positively challenge poor quality and performance
*Identify solutions at the lowest possible level
*Encourage tier 1s and others to bring new ideas forward
Respect
*Value the rules and environment in which we operate
*Give and receive feedback with respect
*Embrace and engage with new people and ideas
Solidarity
*One team, working closely together and helping each other
*Empowered teams always looking forward.
*Shared responsibility for delivery the project outcomes
Clarity
*Communicate clearly and consistently
*Promote collaboration and team alignment
*Clearer and faster decision making
*Drive simplification at all levels
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 rec