Billing Assistant

Billing Assistant (12 month FTC)

Core3 are delighted to partner with a leading international legal business to recruit a fully remote Billing Assistant opportunity with a strong eBilling focus on a 12 month fixed term contract. Salary is up to £35,000. This is a fully remote role aligned to either the Newport or Birmingham office.

Why join our client?

You will be joining a large, well established legal business with a strong reputation, a supportive finance structure, and a flexible working approach. This role sits in a stable team with clear onboarding and support in place, and you will have access to a well rounded benefits package, development opportunities, and the option to get involved in wider ESG activity across the business.

How you\’ll make an impact

Working as part of the Billing team, you will take ownership of billing and eBilling for a key client portfolio, ensuring accuracy, compliance, and fast query resolution.

A typical day will include:

• Responsibility for billing across specific service lines and clients

• Submitting invoices via client portals and managing outcomes including rejections, appeals and resubmissions

• Liaising with partners, lawyers, and stakeholders to resolve billing queries and keep work moving

• Updating and amending matter and file data to ensure correct billing, including sourcing missing data

• Processing high volumes of invoices and proformas, plus credit notes, reversals, and amendments

• Preparing Excel bill schedules, bordereaux and supporting documentation

• Investigating errors against billing guides to ensure compliance with client protocols, VAT and templates

• Handling confidential information in line with data security protocols

This is a fully remote role with flexibility to structure your day within core hours of 8am to 6pm. You must be able to attend your aligned office (Newport or Birmingham) when requested, with hub days typically twice per year.

Why our client is excited about you

Our client is looking for a professional, self motivated and positive Billing Assistant who can work confidently with stakeholders at all levels and take ownership of their workload.

Essential:

• Experience in a finance function within professional services, ideally a law firm

• Strong eBilling capability, including managing invoice rejections and working to strict client billing rules

• Strong systems skills, particularly Excel, with confidence learning multiple platforms and portals

• Ability to prioritise, meet deadlines and manage high volume billing

• Confident communicator with strong written and verbal skills

• Comfortable working as part of a team and independently

• Flexible approach and positive mindset

Preferred:

• LegalX experience (highly desirable due to client requirements)

• Experience across multiple eBilling portals and platforms

• Knowledge of Solicitors Accounts Rules and VAT in a legal billing environment

• Experience with 3E and Paperless, or similar legal finance systems

What you\’ll get in return

This role offers genuine flexibility and work life balance, alongside a strong benefits package (typically including private medical insurance, income protection insurance and discounted gym membership). The hiring process is streamlined with a one stage interview over Teams.

We invite applications from all qualified candidates who believe they meet the requirements of the role, whilst supporting and promoting equality and diversity to create an inclusive working environment for all.