Payroll & Admin Support Assistant

Closing date for applications - 15th January 2026.

Great opportunity to work as a Payroll and Administrative Support Assistant on our prestigious contract at Hinkley Point C in Somerset.

Location:

Bridgwater

Hours:

30 hours per week (Monday to Friday, office hours)

Pay rate: £19.88 per hour

The Payroll and Administrative Support Assistant is a key member of the Hinkley Point Operations Support Team, providing first class administrative support to the team. This role is crucial for ensuring the accurate and timely processing of employee allowances and providing essential payroll support. Additionally they will be tasked to organise, conduct and administrate training in a regulated environment.

The ideal candidate will be proficient with digital tools and problem-solving skills to manage and resolve queries effectively. The post holder must have a positive and proactive attitude and the ability to adapt in a fast paced and ever changing environment.

• Accurately calculate and input various employee allowances (e.g., travel and bus allowances) into the relevant payroll or accounting system according to established company policies and procedures
• Maintain and update complex allowance tracking spreadsheets, primarily utilising Google Sheets, ensuring data integrity and consistency
• Conduct regular audits of allowance data to identify and correct discrepancies before processing
• Act as the primary point of contact for internal and external queries related to employee allowances and payroll processes
• Investigate and resolve allowance-related discrepancies or issues promptly and professionally, liaising with other departments as needed
• Document all queries and their resolution for tracking and continuous process improvement
• Coordinate and lead on the booking process for internal and external courses from planning to completion
• Liaise with external and internal agencies in the delivery of specific training
• Diary management
• Supporting other security functions including the personnel scheduling team
• Record all training information using Company software and ensure that all individual training records are kept up-to-date
• Responsible for the coordination, booking and management of SIA licence top-ups and renewals and provide feedback to the Operations Support Director and HR Operations Manager
• Responsible for the administration of apprenticeship
• Support the wider team with ad-hoc projects and tasks as required

• Proven experience in an administrative or data entry role, preferably one involving financial calculations or payroll data
• Excellent proficiency in Google Sheets (including the use of formulas, pivot tables, and data validation)
• Exceptional attention to detail and a commitment to accuracy in all tasks
• Strong analytical and problem-solving skills, with the ability to review and resolve complex queries
• Excellent written and verbal communication skills
• Ability to manage time effectively, prioritise workload, and meet deadlines in a fast-paced environment
• A high degree of integrity and discretion when handling confidential information

• High level of competency in IT, experience in the Google platform desirable but not essential
• NVQ/SVQ in Business and Administration, Levels 1-4
• OCR Awards, Certificates and Diplomas in Administration (Business Professional), Levels 1-4
• BTEC Level 3 Award and Certificate in Principles of Business and Administration

• Ability to pass and hold National Security Clearance Vetting

• Permanent contract
• 168 hours (28 days per annum inclusive of bank holidays)
• G4S National Pension Scheme
• G4S National Company Sick Pay Scheme
• Dell, Vodafone and O2 discounts
• National Discount Scheme
• Aviva car, home and travel insurance discount
• Health Saturday Fund (health cash plan for you and your family)

G4S are a recognised Disability Confident Leader Employer, committed to fostering an inclusive workplace where everyone can thrive. They prioritise accessibility, support, and opportunity for all employees. Join their diverse and empowering team today!

Job : G229