Billing Administrator

Trinity Fire & Security

Location: Abingdon, Oxfordshire Hours: 8am–5pm, Monday to Friday Contract: Full time, permanent

About the role

Trinity Fire & Security is looking for a Billing Administrator to join our finance team in Abingdon, Oxfordshire.

You’ll help keep customer billing accurate and on time, processing invoices, resolving queries and working closely with colleagues across the business.

This role would suit someone with a background in sales ledger and billing, strong Excel skills and a careful approach to checking figures. You’ll join a supportive team where your ideas for improving processes and making day-to-day work run more smoothly will be welcomed.

What you’ll get

• A competitive salary
• 23 days’ holiday plus bank holidays
• Pension and life assurance
• Discounts on everyday shopping, fashion, technology, holidays, meals out, gyms and more
• A supportive team, friendly office culture and opportunities to learn and develop

What you’ll be doing

• Submitting invoices through customer billing portals across several platforms.
• Processing customer invoices and credit notes accurately and promptly.
• Investigating and resolving billing queries relating to Trinity Fire & Security’s services.
• Raising consolidated invoices and applications for payment (AFPs) for multiple customers.
• Working with colleagues across finance and operational teams to resolve queries and obtain missing information.
• Identifying billing errors, investigating discrepancies and arranging corrections.
• Handling ad hoc billing, including pass-through charges.
• Helping identify improvements to billing processes and systems.

What we’re looking for

• A background in sales ledger, billing and invoice processing.
• Strong organisational skills and attention to detail.
• The ability to prioritise workloads, adapt to changing demands and meet deadlines.
• Confidence using Microsoft Office, particularly Excel and spreadsheets.
• Clear communication skills and a helpful, professional approach to customers and colleagues.
• Confidence handling telephone queries and building positive working relationships.
• The ability to work independently and contribute to a team.
• Familiarity with Sage 200 would be an advantage, but is not essential.

About Trinity Fire & Security

Trinity Fire & Security provides fire and security systems and services that help customers protect their people, property and operations. As part of Premier Technical Services Group (PTSG), we offer the support of a wider group alongside the specialist knowledge and teamwork of our own business.

About PTSG

Trinity Fire & Security is part of Premier Technical Services Group (PTSG), a leading provider of specialist services across the UK and Europe.

Our five divisions deliver services across Access & Safety, Electrical Services, Building Access, Fire Solutions and Water Treatment. With approximately 4,000 specialists delivering more than 170 services, we support over 90,000 customers across 200,000 buildings.

Our aim is simple: to be a great place to work and a great company to do business with.

Equality, diversity and inclusion

We are committed to creating an inclusive workplace where everyone is treated fairly, respected and able to fulfil their potential. We welcome applications from people of all backgrounds and make employment decisions based on ability, suitability and the requirements of the role.

As a Disability Confident employer, we are committed to removing barriers and supporting talented people with disabilities throughout the recruitment process and their careers.

Armed Forces Covenant

PTSG Group is proud to support the Armed Forces community and has formally signed the UK Armed Forces Covenant.

We recognise the valuable skills that service leavers, veterans, reservists and military families bring to our organisation. We guarantee an interview to ex-Forces applicants who meet the minimum criteria for the role and are committed to supporting long-term civilian careers.

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