Overhauling legacy technology while maintaining resilience
Abstract
In the fast-paced world of digital banking, the ability to modernise legacy systems while preserving operational resilience is essential. Financial institutions across the United Kingdom and Europe are increasingly confronted with ageing technology that, while historically reliable, now poses challenges in integration, cybersecurity and agility. This paper examines the intricacies of legacy system modernisation, including when to upgrade or retain legacy components, and strategies for achieving a balanced, risk-based transformation. Drawing on examples from major institutions and recent regulatory guidance, it offers practical insights for decision makers committed to technological renewal without compromising stability. This article is also included in The Business & Management Collection which can be accessed at https://hstalks.com/business/.
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Author's Biography
Danielle Anthony is the Technology Platform Director for the Payment Services Platform, where she spearheads strategic transformation across domestic and international payments. Responsible for service and change delivery across more than 150 applications and an annual budget exceeding £100m, Danielle drives product-centric technology development guided by value-based prioritisation. Her leadership ensures the delivery of stable, secure and resilient payment services to customers, clients and colleagues. A passionate advocate for cultural, business and technical evolution, Danielle plays a pivotal role in embedding group-wide strategies that simplify architecture, reduce technical debt and foster innovation. Her approach nurtures a culture of continuous improvement and operational excellence across the payments ecosystem. Danielle has over 20 years of experience in technology leadership in a career that spans systems analysis, software engineering and large-scale transformation delivery. Her engineering milestones include the Lloyds, Halifax and Bank of Scotland Integration, TSB Divestment, the launch of contactless cards, cheque digitisation, confirmation of payee beneficiary checks and the greenfield build of a new faster payments platform and gateway. Resilience has been a consistent theme throughout her work, particularly in navigating complex regulatory and compliance landscapes.
