Your new company Hays is delighted to be supporting a leading organisation in the recruitment of an Accounts Payable Assistant Manager to join their expanding Shared Service Centre in Milton Keynes. This is an excellent opportunity for a motivated and detail-oriented finance professional to lead Accounts Payable operations, drive process improvements, and develop a high-performing team. Your new role As Assistant Manager, you will be responsible for overseeing the day-to-day delivery of Accounts Payable activities, ensuring invoices are processed accurately, supplier payments are made on time, and internal controls are maintained. Working closely with the AP Manager, you will support operational excellence while driving continuous improvement across the function.Key Responsibilities Oversee end-to-end invoice processing and resolve complex queries and escalations. Manage payment runs, ensuring accuracy and preventing duplicate or unauthorised payments. Review AP ageing, reconciliations, accruals and month-end close activities. Support workload planning, service level delivery and team performance. Build and maintain strong supplier relationships, leading dispute resolution where required. Drive process improvement initiatives, automation projects and system enhancements. Ensure compliance with company policies, audit requirements and data protection standards. Coach, mentor and develop Accounts Payable team members, promoting knowledge sharing and continuous improvement. ..... full job details .....