Billing Analyst – Finance Team

About the role

Oscar Technology is seeking an experienced Billing Analyst to join its fast‑growing finance team in London. You will own the end‑to‑end billing cycle, ensure invoice accuracy, validate supplier costs and resolve customer queries while collaborating closely with Finance, Operations and customer‑facing teams.

Key responsibilities

• Manage the monthly billing cycle using a billing platform.
• Prepare, review and issue customer invoices.
• Maintain pricing structures, tariffs and account data.
• Analyse usage, contracts and pricing to ensure billing accuracy.
• Review and reconcile supplier invoices, resolving discrepancies.
• Liaise with suppliers to recover overcharges or credits.
• Handle billing queries, disputes and account amendments.
• Produce statements, process credit notes and maintain records.
• Update CRM systems with billing activity and client communication.
• Reconcile billing data and produce regular reporting.
• Support process improvements across billing and finance.

Required profile

• Strong experience in billing, invoicing and reconciliation.
• Proficiency with CRM, billing systems and accounting software such as Zoho, Zoey or Xero.
• Highly analytical with strong attention to detail.
• Excellent communication skills and a customer‑focused approach.
• Organised, proactive and comfortable working in a fast‑paced environment.
• Relevant finance or business‑related qualification (desirable).

Required skills

• Excel
• Microsoft Office
• Zoho
• Zoey
• Xero

What we offer

• Collaborative culture within a high‑growth technology business.
• Exposure to multiple teams and the chance to influence billing processes.
• Opportunity to develop financial accuracy and reporting expertise.