Job Description

The Sizewell C Jobs Service supports local people into exciting, long-term careers across our Project.#SZCJobs

HMG Engagement Lead

Sizewell C

London (with travel as required)

Salary - £85,000 - £100,000

Benefits

Bonus – 10%

Contributory pension scheme – up to 7.5% employee/15% employer

Family private medical cover

Holiday – 28 days plus bank holidays

Life assurance – 8 x salary

Closing date for applications: Thursday 17th September 2026

Be at the centre of the relationship between Government and one of the UK's most strategically important infrastructure projects.

Sizewell C is one of the largest and most significant infrastructure investments in the UK. The UK is supporting construction as both a shareholder (44.9%) and debt funder (85%). Government therefore has a critical role in supporting delivery of the power station and helping SZC realise wider benefits, including jobs, skills investment, local economic growth and sector leadership.

Reporting directly to the Chief of Staff, the HMG Engagement Lead will play a pivotal role in shaping and coordinating Sizewell C's engagement with Government, ensuring that Ministers, departments and wider stakeholders have confidence in the project and understand the role Sizewell C plays in delivering national priorities.

This is a rare opportunity for an experienced Government professional to apply their Whitehall experience within a nationally significant infrastructure project at the heart of the UK's energy strategy.

The Opportunity

This role sits within the CEO Office and will lead the organisation's Government sponsorship and institutional engagement activity.

You will help shape Sizewell C's engagement approach across Government, coordinating activity across the CEO Office including Policy and Public Affairs, our Investor Relations and Finance teams, and other functions to ensure a coherent and effective relationship with Government stakeholders.

Working closely with the Chief of Staff and senior leaders, you will:

Support ownership of Sizewell C's strategic sponsorship and institutional engagement agenda.

Develop briefing material and strategic advice for senior executives.

Coordinate engagement activity across Government departments and key stakeholders.

Support the organisation's approach to Managing Public Money, Accounting Officer responsibilities and associated Government interfaces.

Track emerging policy, political and regulatory developments that may impact project delivery.

Help ensure Government understands how policy can actively support successful delivery of Sizewell C.

Coordinate complex and sensitive requests across Government, the CEO Office and corporate functions.

Build trusted relationships across Whitehall and the wider Government sponsorship landscape.

About You

This is not a traditional stakeholder engagement or public affairs role.

We are looking for someone who understands how Government works from the inside and who can confidently operate within a complex Whitehall environment.

You are likely to bring:

Experience working within the UK Civil Service, at least Grade 6 or Grade 7 level.

Experience supporting Government sponsorship, major projects, infrastructure programmes or public accountability arrangements.

Strong understanding of how policy, delivery and Government priorities interact.

Experience preparing advice, briefings and recommendations for senior decision-makers.

Exceptional stakeholder management and influencing skills.

Strong judgement, political awareness and discretion.

The ability to navigate complexity, ambiguity and competing priorities.

Experience working across multiple stakeholders to deliver outcomes in politically sensitive environments

Particularly attractive backgrounds include:

DESNZ

HM Treasury

Cabinet Office

Infrastructure and Projects Authority

Major Projects Portfolio programmes

Nuclear and energy policy

Government sponsorship teams

Complex public-private infrastructure organisations

Apply Now

For this role you must have evidence of right to work in the UK. As a project, we do not discriminate on the grounds of age, gender, race, colour, religion, disability or sexual orientation, and we welcome applications from all sections of the community.