Billing Specialist

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

We exist to create positive change for people and the planet. Join us and make a difference too!

Billing Specialist

Milton Keynes - Hybrid

About The Role

The Billing Specialist is a full-time, permanent role within Finance Business Services, responsible for delivering accurate, timely, and compliant invoicing and credit note processing across an assigned billing portfolio. Reporting to the Billing Manager/Team Leader, you will manage end-to-end billing activities, ensuring invoices are issued right first time and in line with contractual, tax, and statutory requirements. Working collaboratively with teams across Sales, Operations, Credit & Collections, and Finance, you will help resolve billing queries, minimise disputes, and support cash collection performance. This is a hybrid role requiring strong attention to detail, experience in billing or finance operations, and the ability to work effectively in a fast-paced, deadline-driven environment.

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 elevate risks or blockers as required.
• Investigate and resolve billing queries and disputes, working closely with Sales, Operations, Credit Control, and Finance teams.
• 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 system, with the ability to work confidently across multiple financial systems.
• Excellent attention to detail, analytical skills, and the ability to work accurately under pressure while meeting deadlines.
• Strong communication and stakeholder management skills, with the ability to resolve issues and build effective working relationships.
• Advanced 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.

Grow your career and expand your skills and knowledge. At BSI, we offer opportunities to work across industries and across the globe. You’ll benefit from the different perspectives and experiences of your international colleagues, as well as ongoing training and development. 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, car allowance (dependent on role), 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 ranges from £28,050 - £33,000 per year. Your actual pay will be based on factors including your experience and expertise.

We’re building an organisation that meets the challenges of tomorrow. Want to grow with us?

We exist to have a positive impact. Our people influence international thinking and action on important issues. Our 86,000 customers are based in 193 countries across the globe.

Now we’re taking on society’s biggest challenges. We’re developing standards and guidelines that will help our customers get to net zero, and we’re defining the way new technologies such as AI impact all our lives.

We’re focused on our future - and we’re looking for people who want to grow with us as we take on the challenges of tomorrow. At BSI, you’ll find a workplace where everyone can flourish and thrive, where innovation is encouraged and where learning is part of your everyday. You’ll contribute to work that shapes industries and enhances lives - and you’ll take pride in your work.

We’re looking for passionate people who want to make a difference in a purpose-led organisation. If that sounds like you, together, we can help create a better society and a more sustainable world.

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.

About Us

BSI is a business improvement and standards company and for over a century BSI has been recognized for having a positive impact on organizations and society, building trust and enhancing lives.

Today BSI partners with more than 77,500 clients in 195 countries and engages with a 15,000 strong global community of experts, industry and consumer groups, organizations and governments.

Utilizing its extensive expertise in key industry sectors - including automotive, aerospace, built environment, food and retail, and healthcare - BSI delivers on its purpose by helping its clients fulfil theirs.

Living by our core values of Client-Centricity, Agility, and Collaboration, BSI provides organizations with the confidence to grow by partnering with them to tackle society’s critical issues - from climate change to building trust in digital transformation and everything in between - to accelerate progress towards a better society and a sustainable world.

BSI is an Equal Opportunity Employer dedicated to fostering a diverse and inclusive workplace.