About this role
The Sizewell C Jobs Service supports local people into exciting, long-term careers across our Project.#SZCJobs Assistant Payroll Manager Sizewell C Location: Site or Orwell Logistics park (Suffolk) 2-3 days a week in the office Contract Type: Permanent, Full Time Salary: £56,500- £59,000 + bonus and benefits including: Annual company bonus (up to 5%) Market-leading pension scheme (up to 7.5% employee / up to 15% Sizewell C) 28 days annual leave, plus bank holidays Opportunity to purchase extra holiday Employee Assistance Programme Access to benefits portal where additional benefits can be purchased such as; private medical cover, discounted gym memberships, electric car schemes, etc Closing date: Monday 28th September 2026 Please note: We reserve the right to close this vacancy early should we receive a high volume of suitable applications. To avoid disappointment, we encourage interested candidates to submit their application as soon as possible. Why Join as an Assistant Payroll Manager? This is a fantastic opportunity for an experienced payroll professional to take ownership of a complex, high-profile payroll function within a major national project. You'll act as the payroll subject matter expert, leading on payroll delivery, compliance, systems improvement and stakeholder support while helping to shape the future of payroll operations at Sizewell C. Working closely with the Payroll, Pensions & Reward Manager, you'll play a key role in ensuring payroll is delivered accurately and efficiently for our growing workforce. You'll also have the opportunity to support system enhancements, drive process improvements and deputise for the Payroll Manager, giving you genuine responsibility and visibility across the organisation. The Opportunity As Assistant Payroll Manager, you will be responsible for the day-to-day management and delivery of payroll activities, ensuring employees are paid accurately, on time and in accordance with statutory, contractual and organisational requirements. You'll oversee payroll processing, maintain robust controls, manage reconciliations and provide expert payroll guidance across the business. Key responsibilities include: Managing end-to-end payroll processing activities Reviewing payroll transactions, reconciliations and controls Supporting payroll sign-off and governance activities Acting as an escalation point for complex payroll queries Supporting audits, compliance and legislative updates Leading payroll-related projects, process improvements and system enhancements Producing payroll reporting and management information Deputising for the Payroll, Pensions & Reward Manager when required What We're Looking For We're seeking an experienced payroll professional who thrives in a fast-paced environment and enjoys balancing operational delivery with continuous improvement. You'll ideally have: Significant experience working within an in-house payroll function Strong knowledge of UK payroll legislation, HMRC requirements and statutory payments Experience managing end to end payroll processes and complex payroll transactions Excellent payroll reconciliation, validation and reporting skills Strong Microsoft Excel capability Experience using payroll and HR systems (SAP Payroll or SAP SuccessFactors experience is beneficial but not essential) Excellent stakeholder management and communication skills A highly organised, detail focused and problem solving mindset The ability to manage multiple priorities and work to strict deadlines Experience within a large, complex or regulated organisation would be particularly advantageous. 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.