Accounts Payable & Expense Specialist in London

The Accounts Payable & Expenses team supports delivery of the LII strategy by ensuring suppliers and employees are paid accurately, on time and efficiently. The AP & Expenses Specialist is primarily a reporting and project role. You will maintain AP and expense management information, lead data-driven changes for SAP Concur and card programmes, and drive cross-functional projects to optimise processes, controls and compliance. You will partner with Treasury, Expenses, Procurement, IT and Finance to translate stakeholder needs into actionable reporting, deliverables and sustained operational change. The role includes some hands-on responsibility for invoice and expense payment run approvals and reconciliations to provide holiday cover.

About the Department & Team: The Accounts Payable and Expenses team are responsible for ensuring the accurate and timely payment of all administration expenses across all the LII legal entities, covering both Invoice and Employee expenses.

Key Responsibilities

• Reporting: Lead and manage annual/quarterly regulatory reporting requirements for US tax filing and UK Payment Practices Reporting. Design, build and maintain AP and expense MI dashboards and reports (Power BI, Excel or other tools) covering invoice volumes, cycle times, payment behaviour, expense trends, aging, disputes and card usage. Ensure data quality and governance: reconcile AP/expense datasets to GRS SAP/ONEGL and the general ledger; lead supplier master‑data validation and remediation projects. Provide insights and decision support through root‑cause analysis and trend identification, delivering actionable recommendations to reduce exceptions and improve SLAs. Deliver ad‑hoc analysis and stakeholder requests (e.g., Treasury cash‑forecasting inputs, Procurement supplier performance metrics, management reporting), presenting clear narratives and recommended actions.
• Operations & controls: Support AP/Expenses Manager with overseeing invoice processing, approval workflows, payment runs (domestic/international), and expense reimbursements. Support with designing and maintain robust internal controls (SOX where applicable), segregation of duties, and audit-ready documentation through Open Pages. Review, update and expand the AP & expense policies and procedures inventory, ensuring complete, version-controlled documentation and accessible SOPs to support effective controls and consistent execution.
• Compliance & tax: Operate within LII conduct and compliance frameworks; ensure reporting and project changes preserve segregation of duties, audit trails and regulatory requirements (VAT/GST, withholding tax, OFAC where relevant). Work with Tax and Legal on contract reviews, tax documentation and audit requests. Adherence to all relevant regulatory requirements forms part of your role, and the demonstration of behaviours as set out in the Conduct Risk Policy, as they relate to your role, is core to LSM's commitment to our Liberty Values, placing customers at the centre of our business and behaving with integrity.
• Cash & Treasury Operations interaction: Work closely with Treasury on payment timing, cash forecasting, and fraud prevention strategies. Support with managing relationships with strategic suppliers, Concur SAP, Barclaycard escalate issues when required. Collaborate closely with Procurement, expenses, IT and Business Finance to improve end-to-end P2P processes. Support with AP automation initiatives through Concur capture service, Barclaycard corporate cards and virtual card programme and ONEGL SAP programme.

Skills and Experience

• Experience in the insurance industry (desirable)
• Proficiency with Concur and SAP (highly desirable)
• Accounting knowledge, ideally with AAT or equivalent qualification/experience
• Strong operational background with excellent prioritisation and organisational skills
• A control focused approach, with integrity and strong attention to detail
• Analytical and MI skills (advanced Excel, Power BI or similar) to identify trends and support data‑driven decisions
• Proven change delivery experience, including automation, SAP integrations and process redesign
• Effective communicator and pragmatic problem‑solver, able to influence stakeholders across functions

About Liberty Specialty Markets (LSM)

Liberty Specialty Markets is part of Global Risk Solutions and the broader Liberty Mutual Insurance Group, which is a leading global insurer. We offer a breadth of world-class insurance and reinsurance services to brokers and insureds in all major markets. Our people are key to our success. That is why "Put People First" is one of the five Liberty values which unite us as a global organisation. We bring this to life for our colleagues through: Offering a vibrant and inclusive environment and committing to their career development. Promoting diversity, equity and inclusion (DEI). Our Inclusion Matters framework and employee-led networks strengthen the diversity of our workforce and our inclusive environment. Reinforcing that collaborating together to share our unique perspectives help us make better decisions, deliver innovative solutions and pursue our ambitious goals. A supportive culture, which includes promoting a healthy work-life balance and working flexibly.