Billing Specialist: Data-Driven Invoicing & Validation

Investigo; Milton Keynes; On-site; GBP 26,000 - 34,000; Full time

Job summary

Investigo is seeking a detail-oriented Billing Administrator to join a busy finance team in Milton Keynes. You will produce and validate invoices, analyse multiple data streams, and resolve billing discrepancies with strong Excel skills.

The role emphasizes accuracy across customer invoicing, data integrity, and collaboration with cross-functional teams to support month-end activities and continuous improvement.

Qualifications

• Proven experience in Billing Administration or related role.
• Strong Excel skills with data analysis and reconciliation capabilities.
• Excellent attention to detail and accuracy across datasets.
• Experience handling complex billing processes and invoicing.
• Ability to work under pressure and meet deadlines.

Responsibilities

• Produce accurate and timely invoices across a diverse customer base.
• Manage complex billing processes involving multiple data sources and charge types.
• Review and validate large volumes of billing data prior to invoice generation.
• Investigate and resolve billing discrepancies and queries.
• Maintain billing records and data integrity across finance systems.
• Collaborate with operational and commercial teams to verify billing information.
• Analyse billing trends and identify process improvements.
• Support month-end activities related to revenue and invoicing.
• Create and maintain Excel reports for billing analysis and validation.
• Ensure compliance with internal controls and company procedures.

Skills

Advanced Excel

VLOOKUP

XLOOKUP

Pivot Tables

Data Analysis

Reconciliation

Attention to detail

Billing

Job description

Investigo is seeking a detail-oriented Billing Administrator to join a busy finance team in Milton Keynes. You will produce and validate invoices, analyse multiple data streams, and resolve billing discrepancies with strong Excel skills.

The role emphasizes accuracy across customer invoicing, data integrity, and collaboration with cross-functional teams to support month-end activities and continuous improvement.