Billing Specialist

Job Title: Billing Specialist

Location: Milton Keynes - Hybrid

Salary: Up to £31,000 per annum + bonus

As a Billing Specialist, you will deliver accurate, timely, and compliant invoicing and credit note processing across an assigned billing portfolio. You will manage end-to-end billing activities, ensuring invoices are issued right the first time and in line with contractual, tax, and statutory requirements. You'll also work collaboratively with teams across Sales, Operations, Credit & Collections, and Finance to resolve billing queries, minimise disputes, and support cash collection performance.

This position is based on a hybrid working model with the expectation of 3 days in the office and two days working from home.

Responsibilities:

Deliver assigned invoice, credit note, and billing volumes in line with SLAs, billing calendars, and agreed deadlines.

Validate billing inputs including; contracts, purchase orders, pricing, tax treatment, customer data, and supporting documentation.

Create accurate invoices and credit notes in compliance with contractual, statutory, VAT, and customer

requirements.

Manage e-billing and customer portal submissions, resolving invoice rejections and processing issues promptly.

Monitor billing backlogs, prioritise high-value and cash-critical items, and escalate risks or blockers as required.

Maintain accurate billing records, approvals, audit trails, and supporting documentation in line with company policies.

Support expense and pass-through cost billing, ensuring charges are correctly validated and supported by evidence.

Perform billing checks, reconciliations, and housekeeping activities to maintain accurate revenue and accounts receivable records.

Ensure compliance with internal controls, invoicing regulations, VAT

requirements, and billing governance standards.

Support month-end and year-end billing activities, reporting requirements, backlog management, and audit requests.

Contribute to continuous improvement initiatives, process standardisation, system enhancements, and knowledge sharing across the team.

To be successful in the role, you will have:

A minimum of 3 years’ experience in billing, with proven ability to manage complex billing cycles and processes.

Strong working knowledge of SAP or a similar ERP systems.

Excellent attention to detail and analytical skills.

The ability to work accurately under pressure while meeting deadlines.

Strong communication and stakeholder management skills.

The ability to resolve issues and build effective working relationships.

Strong organisational skills with the ability to prioritise workloads, work independently, and manage changing priorities.

Good working knowledge of Excel, including formulas and pivot tables, as well as Microsoft Office applications.

Understanding of contract-to-billing processes, VAT/GST requirements, statutory invoicing regulations, and e-billing portals would be advantageous.

GCSE Maths and English (or equivalent), combined with a proactive, customer-focused mindset and a commitment to delivering high-quality service.

Our benefits:

We offer flexible working as well as; 27 days’ annual leave, paid sick leave, bank holidays, health insurance, life insurance, pension plan with company contribution, income protection, paid maternity leave, paid paternity leave, paid parental leave, adoption leave, compassionate leave, paid bereavement leave, learning and development opportunities, and a wide range of flexible benefits that you can tailor to suit your lifestyle.

The guide salary for this role is up to £31,000 per annum. Actual compensation is based on various factors, including but not limited to; candidate competencies, level of experience, education, location, divisional budget, and internal peer compensation comparisons.

D&I Policy

The world needs fresh thinking and new perspectives to tackle its biggest challenges. It’s why, at BSI, we’re committed to creating a collaborative environment where everyone can contribute. Whatever your background, experience or outlook, here you can be your best self and do your best work.

If you have a disability or a health condition, please let us know if you need any reasonable adjustments to the recruitment process