Senior Finance Assistant

Our purpose is simple and ambitious: to improve access to healthcare for all in the UK. Through affordable health and dental plans, we help people manage their everyday healthcare needs and live healthier lives. With NHS pressures and the cost‑of‑living crisis making access to care harder, our mission is more critical than ever.

Join our Finance team in a pivotal role where you'll help keep our payment, collection and invoicing operations running smoothly across our Healthplan, 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.

You'll be the go-to expert for complex payment and invoicing activity, balancing operational excellence with process improvement, stakeholder management and leadership support.

What you'll be doing

• Deliver end-to-end payment, collection and AUDDIS processes, ensuring all activity is accurate, compliant with Pay.UK 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.

What’s in it for you 

As well as a competitive salary, our benefits package includes:  

• Group bonus scheme  

• 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 some great benefits such as critical illness, , shopping vouchers and more) 

• Your own fully funded health or dental plan 

• Access to a wellbeing hub 

• Shopping discounts 

• Recognition awards  healthcare scheme healthcare scheme 

• Give as you earn 

• 3 volunteering days