Job Description

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

People Business Partner

Sizewell C

Location: Suffolk, Sizewell C site or Orwell Logistics Park minimum 3 days a week in the office + occasional travel as and when required

Contract: Full time, Permanent

Salary: £59,000 to £65,000 depending on experience + bonus + benefits including:

Up to 5% annual bonus.

28 days’ annual leave, increasing to 30 days after five years of service, plus bank holidays.

Opportunity to purchase extra holiday.

Defined Contribution Pension Scheme with up to 7.5% employee contribution and 15% employer contribution.

Access to benefits portal offering a range of health, financial wellbeing and lifestyle options.

Closing date: Wednesday 28th of October 2026

Please note: We reserve the right to close this vacancy early should we receive a high volume of suitable applications, so we encourage you to apply as soon as possible.

The Opportunity

Are you an experienced HR professional who thrives in a complex, fast paced organisation and knows how to build credibility with leaders across different areas of a business?

We’re looking for a People Business Partner to join the People team at Sizewell C, providing hands on, commercially focused people support across a growing and complex organisation.

This isn’t a role where you’ll support one neat, standalone area. We’re looking for someone comfortable working across multiple business areas, navigating matrix structures and managing relationships with a range of leaders and stakeholders. You’ll need a strong HR generalist background combined with the confidence to coach, influence and positively challenge managers when needed.

The role will partner with designated leaders, translating people plans into practical action and providing professional advice, commercial people solutions and operational support. You’ll work across areas including organisational change, performance, talent, resourcing, employee relations, reward and people development.

Why join Sizewell C?

Sizewell C is one of Britain’s major infrastructure projects, with plans to design, finance, construct, commission and ultimately operate a new nuclear power station and its associated infrastructure in Suffolk.

As the organisation continues to grow, our People team has an important role to play in building the organisation, supporting its leaders and creating the people practices needed for the future.

It’s an opportunity to bring your HR expertise into a complex environment where you’ll work closely with leaders and help shape how their teams develop and perform.

Why join us as a People Business Partner?

This is a broad, influential HR role where no two days will look quite the same.

You’ll have the opportunity to:

Partner with and coach managers across a range of business areas

Support organisational change, restructures and cultural change

Help leaders manage individual and team performance effectively

Support workforce planning and significant recruitment requirements

Provide guidance on more complex employee relations matters

Contribute to talent and succession planning

Support learning and development priorities

Help deliver reward activity and annual salary review processes

Build strong relationships across the wider People function and organisation

Crucially, you’ll be joining a role where you can challenge, influence and make things happen, rather than simply providing transactional HR support. The role is described as high profile and high impact within the growing Sizewell C team.

What we’re looking for

The hiring team is particularly looking for someone who can demonstrate:

At least 3 to 4 years’ HR Business Partner experience

Experience working within a large-scale business or major project environment

Matrix working experience, with the ability to navigate different reporting lines and stakeholder relationships

Experience providing HR support across multiple areas of a business, rather than supporting one narrow function

A strong HR generalist background and good knowledge of employment law and HR best practice

Confidence coaching, influencing and constructively challenging managers and senior leaders

Experience across areas such as change, performance management, talent, reward, people development, resourcing and employee relations

Strong written and verbal communication skills

Strong Microsoft Office skills, particularly Excel

You’ll also need to be comfortable operating in a complex environment, balancing strategic priorities with day to day HR activity while remaining commercial, pragmatic and able to deliver at pace.

Qualifications:

You should be CIPD qualified, working towards CIPD membership, hold a relevant equivalent qualification, or be able to demonstrate equivalent HRBP experience.

Ready to make your impact?

If you’re an experienced HR Business Partner who knows how to navigate a large, complex organisation, build trusted relationships with leaders and turn people strategy into practical action, we’d love to hear from you.

Apply now and play your part in building the people capability behind Sizewell C.

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.