Modernising legacy payment solutions for a market-leading payment services provider
At the heart of the client’s payment operations is a sophisticated direct debit application. To support business growth and expansion into new markets, they needed to modernise this core system. While plans were in place to migrate the application to Azure Cloud, a simple โlift and shiftโ approach risked compromising reliability and scalability. TXP was engaged to refactor and modernise the application, ensuring it could fully leverage the benefits of cloud infrastructure.
The Client
Our Client is a market leader in payment services for the UK public and social housing sector. Established in 1994, the company now handles ยฃ8.5 billion annually, serving over 4.5 million end customers. They support more than 50% of UK local authorities and 90% of the top 200 housing associations.
The Challenge
- The legacy direct debit application needed to scale to support increased transaction volumes.
- A basic cloud migration would result in reduced reliability compared to the on-premise version.
- The application had to be re-architected to run efficiently in Azure and support future growth.
- Modernisation needed to be completed without disrupting existing operations.
The Solution
TXP began with a migration discovery and assessment to define the optimal approach. A cross-functional team of Azure architects, DevOps engineers, developers, and QAs was deployed to deliver the solution.
Key activities included:
- Re-architecting prioritised features for cloud readiness.
- Migrating the workload to Azure using Kubernetes and containerisation.
- Post-migration optimisation and modernisation of application components.
- Automated testing aligned to the clientโs test automation framework to validate performance targets.
The Benefits
A cloud-based application that matches the performance of the legacy on-premise system.
- Scalable architecture that supports increased transaction volumes and future growth.
- Improved agility through separation of the direct debit system into a standalone application.
- Easier deployment and maintenance compared to the legacy setup.
- Greater resource efficiency and operational flexibility in the cloud.
- Ongoing collaboration with TXP to continue modernising the clientโs legacy estate.