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Finance & Billing Administrator - 12-Month Fixed-Term Contract (Hybrid)

Professional Services / Finance Administration
Full-time | Hybrid | 12-Month FTC

Overview

We're looking for a detail-oriented Finance & Billing Administrator to join a busy professional services team based in Milton Keynes. This role plays a key part in supporting partners and fee earners with financial processes including billing, reporting, and client administration.

You'll be working closely with internal finance teams and supporting partners to ensure smooth, accurate billing and financial record keeping. This is an ideal opportunity for someone who enjoys numbers, organisation, and working in a collaborative office environment.

Key Responsibilities

Finance & Billing Support

Prepare, review and process client invoices in line with firm and client-specific requirements.

Generate and analyse billing reports to ensure accuracy and compliance.

Monitor work-in-progress (WIP) and follow up on outstanding payments.

Liaise with internal accounts and billing teams to resolve queries quickly.

Manage multi-jurisdictional billing projects, coordinating with international offices or third-party suppliers.

Maintain accurate records of disbursements and third-party invoices.

Organisation & Coordination

Plan and prioritise billing cycles to meet key deadlines.

Attend regular team meetings to review progress and workflow.

Matter & Client Administration

Support new matter openings, including checks and documentation.

Assist with routine compliance tasks such as conflicts and AML checks.

Maintain and update client contact lists and project records.

General Administrative Support

Provide administrative assistance to partners and team members.

Support process improvements and contribute to team efficiency initiatives.

Skills & Experience

Previous experience in finance administration, billing, or a similar role (ideally within a professional services environment).

Strong attention to detail and high numerical accuracy.

Confident using finance or billing software (e.g. Elite, 3E, or similar systems).

Excellent time management and organisation skills.

Clear communication and a collaborative approach to teamwork.

Comfortable working under pressure and meeting deadlines.

What's in It for You

Competitive salary and benefits package.

Hybrid working model (office & home balance).

Exposure to a well-established professional services environment.

A supportive team culture and great training opportunities