Job Description

About Us

GTS combines the expertise of Go-Ahead Group, Tokyo Metro and Sumitomo Corporation to deliver outstanding rail services across London. We are committed to improving journeys, supporting communities and empowering our people.



We're looking for a

Senior Payroll and Pension Specialist

to ensure accurate, compliant and high-quality payroll and pension services across the organisation.

What You Will Do:

Deliver accurate, timely end-to-end payroll processing, including IR35 Off-Payroll workers. Manage data input, checks, reconciliations, statutory returns and GDPR-compliant record keeping. Oversee pension administration including Auto-enrolment, opt-outs, contributions, reconciliations and annual returns. Prepare BACS documentation and liaise with the MHR payroll bureau to ensure on-time payments. Line-manage the Payroll & Pension Administrator, supporting workload planning and development. Act as the main contact for payroll and pension queries, ensuring SLA response times. Support internal/external audits and help implement improvements and best practice. Maintain payroll procedures and assist with HR systems tasks (iTrent, ESS, data loads). Ensure statutory reporting (P45s, P60s, P11Ds, Auto-Enrolment, FPS, EPS , ONS surveys) is accurate and on time. Build effective relationships with HR, Finance and wider business stakeholders.

What You Will Bring:

At least five years' payroll and pension experience, ideally in the rail industry. Previous line-management experience in a payroll environment. Strong knowledge of UK payroll legislation, pensions, statutory payments and auto-enrolment. Experience processing payroll end-to-end, including BACS and reconciliations. Excellent problem-solving skills and accuracy, with confidence handling complex queries. Intermediate Excel skills; iTrent experience and CIPP qualification desirable. Professional, detail-driven and able to manage confidential data in line with GDPR.

Benefits and Rewards

Travel Benefits (discretionary):


Free zones 1-6 Oyster travel card, for you and another person who lives at the same address 75% discount on all UK rail travel, and some international services

Pension: You will be automatically enrolled into our excellent pension scheme. After two years, you will have the option of joining our defined benefits scheme



Star Hub: A dedicated online benefits platform for retail and entertainment discounts

About Us

GTS values its workforce, offers career progression and provides a platform to grow and develop.



We aspire to set a new transport standard for the UK, moving people and connecting communities better than anyone else. We are making long-term improvements to our network and creating a better service for our customers. We are a trusted operator with proven experience and have a mission to enable our employees to reach their full potential.



We welcome applications from a diverse range of candidates regardless of background, disability or gender and are committed to creating a workforce as diverse as the communities we serve.