Senior Biller - Financial Operations

Senior Biller - Financial Operations | Finance | London Department overview

Our Finance department is a dynamic team of 30 professionals, working across three specialist areas:
Financial Control, Financial Operations, and Financial Reporting. We’re in the exciting process of building a dedicated Billing team to strengthen and enhance the centralised Financial Operations services supporting our UK offices. We pride ourselves on offering a collaborative, friendly, and supportive environment where your expertise is highly valued.

As Senior Biller, you will deliver proactive, dedicated finance support to your assigned partners and fee‑earning teams, while also assisting other billing colleagues as needed. You will take ownership of the end‑to‑end billing process, ensuring full compliance with firm policies on WIP management, recovery, and related financial administration.

Acting as a subject matter expert for complex billing requirements, you will utilize the full functionality of Elite 3E to guarantee the timely and accurate production and delivery of invoices. You will serve as the primary point of contact for 3E support within your partner group, maintaining strict adherence to all Finance policies and procedures.

A high level of proficiency in Elite 3E and proven experience in managing complex group billing arrangements are essential for success in this role. A strong understanding of recovery and realisation practices is highly desirable, reflecting the demands of the accountancy sector.

This position plays a critical role in ensuring that invoices are produced with exceptional accuracy and efficiency, particularly during peak periods such as quarter‑end billing cycles.

As a key member of the Financial Operations team, you will report to the Billing Manager – Financial Operations.

• Maintain the accuracy and integrity of client, matter, and payer master data within Elite 3E, including tax area and site management.
• Ensure amendments to master data do not compromise exception reporting for daily, weekly, monthly, and quarterly tasks.

• Respond promptly and professionally to requests and queries received by the Billing team, consistently striving for client service excellence.
• Deliver proactive billing support to partners and fee‑earning teams, reducing administrative burden by managing end‑to‑end billing processes.
• Assist with month‑end billing processes and contribute to the development and use of control/exception reports for billing and recovery monitoring.
• Act as the subject matter expert for complex billing arrangements, including detailed timecard amendments for large Related Client Groups.
• Serve as the primary escalation point for complex billing/WIP queries and exceptional scenarios, collaborating with the Billing Manager as required.
• Alert the Billing Manager and Head of Financial Operations to any contentious issues promptly.
• Support the Billing Manager in providing Elite 3E expertise to the firm’s PMS superuser group.

• Ensure all finance activities comply with firm policies, procedures, VAT regulations, and financial reporting requirements.
• Promote correct system usage and data integrity across all finance processes.
• Escalate compliance issues or barriers to the Billing Manager and Head of Financial Operations.

• Serve as the primary finance contact for assigned partners and fee earners, building strong relationships and working closely with their support teams to ensure seamless billing processes.
• Deliver training and guidance to partners, fee earners, and support staff on key areas such as time recording, WIP management, and effective system usage, promoting best practice across the firm.
• Champion continuous improvement by identifying opportunities to enhance processes and actively supporting finance projects and initiatives led by management.

• Assist with routine and ad hoc reporting related to timesheets, WIP, billing and master data.
• Contribute to the ongoing enhancement of finance systems and processes to improve efficiency, data…