Billing Specialist: End-to-End Invoicing & Compliance

BSI; Milton Keynes; Hybrid; GBP 28,000 - 33,000; Full time

Benefits offered by this job

27 days annual leave

Health insurance

Pension plan with company contribution

Car allowance

Income protection

Paid maternity leave

Paid paternity leave

Paid parental leave

Adoption leave

Compassionate leave

Learning and development opportunities

Flexible benefits

Job summary

BSI in Milton Keynes is seeking a Billing Specialist to join Finance Business Services. This full-time, permanent role focuses on end-to-end invoicing and credit note processing across an assigned portfolio, in a hybrid working setup.

You will collaborate with Sales, Operations, and Finance to resolve billing issues and support cash collection. Candidates should have at least 3 years in billing, strong attention to detail, and experience with SAP or similar ERP systems, plus solid Excel skills.

Qualifications

• Minimum 3 years’ experience in billing or finance operations.
• Ability to manage complex billing cycles and processes.
• Experience with SAP or similar ERP systems is required.

Responsibilities

• Deliver invoice, credit note, and billing volumes per SLAs and deadlines.
• Validate inputs: contracts, POs, pricing, tax, data, docs.
• Create accurate invoices and credits compliant with VAT and contract terms.
• Manage e-billing and customer portal submissions, resolve rejections.
• Monitor backlogs, prioritise high-value items, escalate risks.
• Resolve billing queries with Sales, Operations, Credit, and Finance.
• Maintain audit trails and supporting documentation.
• Support pass-through cost billing with proper validation.
• Perform billing checks, reconciliations, and housekeeping for AR.
• Ensure compliance with internal controls and VAT invoicing rules.
• Assist month/year-end billing, reporting, backlog management, audits.
• Contribute to process standardisation and system improvements.

Skills

Billing experience

Attention to detail

Stakeholder management

Time management

Education

GCSE Maths and English

Tools

SAP

Excel

Job description

BSI in Milton Keynes is seeking a Billing Specialist to join Finance Business Services. This full-time, permanent role focuses on end-to-end invoicing and credit note processing across an assigned portfolio, in a hybrid working setup.

You will collaborate with Sales, Operations, and Finance to resolve billing issues and support cash collection. Candidates should have at least 3 years in billing, strong attention to detail, and experience with SAP or similar ERP systems, plus solid Excel skills.