Billing Specialist

About the role

Reporting to the Head of Billing & Credit Control, the Billing Administrator will have prior billing experience and will be responsible for ensuring accuracy, efficiency, and excellent customer service across all billing activities. You will be a key point of contact for both internal teams and external customers, helping to maintain smooth financial operations within a fast‑paced environment.

Key responsibilities

• Record and maintain accurate details in the aBILLity billing system & Halo.
• Perform daily billing checks for fraud and customer overspend, updating the mobiles team and account managers as required.
• Monitor billing tickets and ensure queries are dealt with promptly.
• Resolve all billing queries from end customers and internal departments.
• Support operations/projects teams by entering new customer billing data, minimizing errors.
• Assist with downloading and importing CDR/SDR files for the monthly bill run.
• Reconcile supplier invoices against customer billing and raise queries where appropriate.
• Import and maintain buy and sell tariffs within the billing system for margin assurance.
• Handle incoming calls and emails, dealing with first‑line billing queries and keeping customers updated on progress.

Required profile

• Minimum of 1 year experience in a similar billing or finance‑related role.
• Proficient in Microsoft Office, especially Excel.

Required skills

• Microsoft Excel
• aBILLity billing system
• Halo