Senior Finance Assistant

Location: Andover. Requirement to be in the office twice per week, so must live within commuting distance

Salary: Up to £29,000 Hours: Monday to Friday 9am to 5pm

We are a certified B‑Corp dedicated to improving access to UK healthcare for over 150 years. Our purpose is to provide affordable health and dental plans and support our members, customers and people.

Join our Finance team in a pivotal role where you'll help keep our payment, collection and invoicing operations running smoothly across our Health plan, Dental and Corporate products. As a Senior Finance Assistant, you'll take ownership of day-to-day operational delivery, support Team Leaders, champion continuous improvement, and ensure our customers receive an exceptional service.

• Deliver end-to-end payment, collection and AUDDIS processes, ensuring all activity is accurate, compliant with  BACS rules and completed within agreed SLAs.
• Manage Dental Capitation payment and collection processing, including monthly reconciliations and timely investigation of variances.
• Process business payments including BACS, cheques, card payments and direct credits, maintaining accurate and auditable records.
• Resolve complex payment, invoicing and allocation queries, protecting the customer experience while maintaining robust audit trails.
• Monitor team performance against SLAs, prioritise workloads and proactively manage operational risks.
• Act as deputy to Team Leaders, providing day-to-day guidance, managing escalations and ensuring service continuity.
• Build strong relationships with internal teams and clients, communicating clearly and professionally.
• Support, coach and role‐model best practice, helping to develop colleagues and foster a positive, high‐performing team culture.
• Drive continuous improvement by identifying opportunities to strengthen processes, controls and systems.
• Maintain finance procedures, documentation and control evidence to support audit readiness and compliance.
• Support projects, testing and business change, delivering measurable improvements in quality, efficiency and control.
• Champion Quality Control across BACS & Operations and Invoicing & Allocations, maintaining a 98% accuracy target and timely completion of reviews.
• Oversee complex invoicing activity including renewals, manual billing, refunds, write‐offs and backdated changes, applying sound financial judgement.
• Use Microsoft Dynamics 365, Cvent and other finance systems to deliver accurate invoicing and customer payment processing.

We’re looking for someone who is highly organised, adaptable and able to manage multiple priorities in a fast‐paced environment. You’ll be a logical problem‑solver with excellent Microsoft Excel and Office skills, who can work accurately under pressure and consistently meet deadlines. You’ll also have a strong customer focus, a flexible approach and a commitment to delivering high‐quality service while supporting a wide range of finance activities.

• Generous pension with a 10% pension gift from us when you contribute 4%
• 36 days holiday (with the option to buy and sell a further 5 days)
• Flexible benefits pot (which you can choose to use against benefits such as critical illness, shopping vouchers and more)
• Your own fully funded health or dental plan
• Access to a wellbeing hub
• Give as you earn

• Screening call with Talent Acquisition Team
• Interview with the hiring manager and team

Please note:

Working for a purpose‐driven company like ours is a fantastic opportunity, so we often receive high volumes of applications for our roles. In these cases, we may close our job adverts early and won’t be able to consider applications after that time.