Billing Administrator

Arc; Basildon; On-site; GBP 26,000 - 36,000; Full time

Job summary

Arc is seeking a Billing Administrator to join the Finance team in Basildon. You will prepare, process and reconcile invoices across managed service contracts, cloud, cybersecurity and project billing, ensuring accuracy and timeliness.

The role requires strong numerical and administrative skills, precision, and the ability to handle deadlines while maintaining confidentiality. Collaboration with the Billing Manager and cross-functional teams is essential to support a high standard of service.

Qualifications

• Experience in billing, invoicing or finance administration.
• Strong eye for detail and accuracy.
• Able to work with numbers and meet deadlines.
• Proficiency in Microsoft Excel and Office.
• Excellent organisational and time-management skills.
• Good written and verbal communication.
• Ability to work independently and as part of a team.
• Maintains confidentiality and professional standards.

Responsibilities

• Prepare, process and issue customer invoices across contracts and projects.
• Check billing information, rates and customer details for accuracy.
• Process credit notes and billing adjustments when required.
• Maintain accurate customer and billing records in finance systems.
• Investigate and resolve invoice discrepancies and queries.
• Liaise with customers and internal teams on billing issues.
• Produce regular billing reports and support month-end activities.

Skills

Billing experience

Attention to detail

Numerical skills

Excel proficiency

Organisational skills

Communication skills

Independent worker

Confidentiality

Education

AAT qualification

Tools

Autotask

ConnectWise

Sage

Xero

Job description

About Arc

Arc is a leading IT Managed Services Provider (MSP) based in the UK, delivering innovative and reliable IT solutions to businesses across various industries. With a strong reputation for excellence, we offer a range of services, including IT support, hybrid cloud solutions, cybersecurity, infrastructure management, PowerApps and AI. Our team is dedicated to delivering outstanding customer service and technical expertise to help businesses succeed.

Role Overview

We are looking for a highly organised and detail-oriented Billing Administrator to join Arc’s Finance team. The successful candidate will be responsible for the accurate and timely preparation and processing of invoices across Arc’s managed service contracts, cloud, cybersecurity and project-based billing, maintaining customer billing records, resolving billing queries, and supporting the wider finance function.

The role requires excellent attention to detail, strong administrative skills, confidence working with numbers, and the ability to manage deadlines effectively. You’ll work closely with the Billing Manager and Finance team to help keep Arc’s billing accurate, timely and aligned with our customer contracts.

Key Responsibilities

• Prepare, process and issue customer invoices accurately and within agreed deadlines, across recurring managed service contracts and non-recurring/project billing.
• Check billing information, rates, charges and customer details for accuracy against contracts and PSA records.
• Process credit notes, adjustments and billing corrections where required.
• Maintain accurate customer and billing records within internal finance and PSA systems.
• Investigate and resolve invoice discrepancies and billing queries.
• Liaise with customers and internal departments regarding billing issues.
• Reconcile billing information and assist with payment and account queries.
• Produce regular billing reports and provide administrative support to the Finance team.
• Monitor billing schedules and ensure invoices are processed in accordance with Arc’s procedures.
• Assist with month-end and year-end finance activities when required.
• Maintain confidential financial and customer information.
• Identify billing errors or process improvements and raise these with the Billing Manager.
• Undertake other finance and administrative duties as required.

Essential Skills And Experience

• Previous experience in billing, invoicing, finance administration or a similar administrative role.
• Strong attention to detail and accuracy.
• Good numerical and analytical skills.
• Good working knowledge of Microsoft Excel and Microsoft Office.
• Excellent organisational and time-management skills.
• Ability to manage multiple tasks and meet deadlines.
• Strong written and verbal communication skills.
• Ability to investigate discrepancies and resolve problems effectively.
• Ability to work independently as well as part of a team.
• High level of professionalism and confidentiality.

Desirable

• Experience using accounting, invoicing, PSA or ERP systems – e.g. Autotask, ConnectWise, Xero or Sage.
• Experience working within a finance or accounts department, ideally in an MSP, IT services or other recurring-revenue business.
• Knowledge of accounts receivable processes.
• AAT qualification or relevant finance/accounting training.
• Experience working with high-volume billing environments.

Personal Attributes

The Ideal Candidate Will Be

• Accurate and detail-focused
• Organised and dependable
• Proactive and willing to take initiative
• Comfortable working with numbers and financial information
• Professional and customer-focused
• A good communicator
• Able to work calmly under pressure and meet deadlines

Working Relationships

The Billing Administrator will work closely with the Billing Manager, Finance, Accounts, Sales, Service Delivery and Customer Service teams, as well as customers and other external stakeholders where required.

Key Objective

To ensure that all billing and invoicing activities are completed accurately, efficiently and on time, while providing a high standard of service to Arc’s customers and supporting the overall objectives of the Finance team.

Key Points

Diversity & Inclusion: We celebrate diverse backgrounds and perspectives; they make us stronger. If you’re excited about this role, apply even if your experience doesn’t align perfectly. If not this one, you could be just the right fit for other roles we are recruiting for. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

UK Right to Work: All applicants must have the right to live and work in the UK. We cannot offer sponsorship at this time.

Accessibility: We are committed to providing reasonable adjustments for any candidates with disabilities. If you require adjustments, please outline these requirements in your application.