23 Nov 2021

Drive growth and reduce costs with application modernisation

Guest Blog: Esynergy as part of techUK's Cloud Week #CloudFuture

It is a fact of life that emergencies are when we see the power and abilities of civic services. The UK's tax collection body, Her Majesty's Revenue and Customs (HMRC) is just one example, the set of services launched by HMRC to protect the national economy from the ravages of the Covid-19 pandemic is an example of a public sector body being fleet of foot and able to respond to a crisis. HMRC's response is also an example of how application modernisation is vital and protects an organisation, or in this case, a nation. 

Looking beyond the pandemic, organisations that need to drive more value from their technology investments will prioritise application modernisation, which will deliver both a value increase and enable the decommissioning of old legacy platforms. Not only will organisations see a return on investment, but also an increased ability to respond to events, whether that be a global healthcare incident or sudden changes to the market. HMRC was able to respond to the pandemic as it had the modern application platform in place following six years of application modernisation. So when the call came in spring 2020 to respond to the pandemic, three new technologies to provide job retention, self-employment income support and sick pay rebates were quickly delivered.   

Antony Collard, HMRC Director, Strategy, Design, Architecture and Innovation, explained that a cloud computing infrastructure and the Multi-Channel Digital Tax Platform allowed the department to rapidly and securely build three new services “from scratch”. He described the launch of these services to one business and technology title as: “trying to land a jet on an ironing board.” (https://diginomica.com/inside-look-how-hmrc-delivered-its-rapid-covid-19-response)   

Application modernisation not only allowed HMRC to respond to a global event, in financial services, but banks that have modernised their application estates are also able to deliver new and demanded services to their customers. Traditionally banks and their application estates have grown through acquisitions and integrations; this results in a monolithic technology stack that lack agility has an integration that is vertical and cannot, therefore, support the business horizontally. At OakNorth Bank, the CIO Sean Hunter has used cloud-native application development to allow the bank to develop an ecosystem approach. This supports OakNorth in vertical or horizontal developmental demands. Like HMRC, Hunter told a recent interview (https://diginomica.com/oaknorth-bank-grows-aws-infrastructure-code) that this enabled the bank to change rapidly when the pandemic hit the UK.   

Large financial service providers with traditional application estates have used application modernisation to reduce the risks of a monolithic technology stack and to improve their services; for example, one of the world largest payment processing organisations had 12 individual payment gateways, again a result of an acquisition, each application and gateway was focused on a specific customer segment, this created complexity and technology debt to the business. An application modernisation strategy led to the creation of a single overarching interface that consolidated the 12 payment gateways into one, which was a cloud-based and scalable application with improved security.   

In developing the new gateway applications, the payments service provider was able to adopt the latest technology languages (Scala and Akka) and use the Amazon AWS infrastructure platform for increased flexibility. This has led to reskilling of the internal capabilities of the technologists in the financial services provider and, as a result, a move to a DevOps method of working, which both supports the organisation’s business and technology strategy going forwards. For example, new features are delivered within three months, and the financial services provider is able to take on large increases in demand from global clients. Without full-scale application modernisation, it is unlikely that the organisation would have been able to respond with this level of agility.   

These three examples in financial services and the public sector demonstrate how a cloud-native approach to application modernisation is key. Cloud-native application modernisation allows an organisation to innovate at scale and reduce bottlenecks and scalability issues, which traditionally have always hampered application development and delivery.

Bottlenecks and scalability have also damaged the relationship CIOs, CTOs, and IT has with the rest of the organisation. We are increasingly seeing organisations that have carried out a cloud-native based application modernisation approach develop stronger and improved relationships with the organisation. This results in closer alignment and more opportunities to be at the forefront of business outcomes.  

A cloud-native application estate will deliver high impact across the organisation. With technology teams able to make changes frequently, organisations are able to respond to changes in the market and therefore delight customers.   

Application modernisation is not about ripping and replacing – unless necessary. In most cases, application modernisation can extend the life of valuable legacy systems of record, reduce the total cost of ownership of legacy systems and extract greater value for the organisation. Application modernisation must always be led by business outcomes. Therefore it is vital to select applications and partners that are the right fit for the organisation and its culture.   

No one wants to plan for a pandemic, but one lesson from recent events is that organisations must have an application estate that is adaptable and can respond to events, both negative and more hopefully positive.    


eSynergy Solutions is a technology consultancy, delivering business value from cloud computing. Their services revolve around three areas; cloud adoption, cloud native software development and data & analytics. They work with government bodies across the UK, supporting them day in and day out to achieve and exceed their digital transformation goals, including HMRC, HMPO and CPS.

Find out more here: https://www.esynergy-solutions.co.uk/


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Laura Foster

Laura Foster

Programme Manager, Technology and Innovation, techUK

Laura is techUK’s Programme Manager for Technology and Innovation.

She supports the application and expansion of emerging technologies across business, including Geospatial Data, Quantum Computing, AR/VR/XR and Edge technologies.

Before joining techUK, Laura worked internationally in London, Singapore and across the United States as a conference researcher and producer covering enterprise adoption of emerging technologies. This included being part of the strategic team at London Tech Week.

Laura has a degree in History (BA Hons) from Durham University, focussing on regional social history. Outside of work she loves reading, travelling and supporting rugby team St. Helens, where she is from.

[email protected]

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Zoe Brockbank

Programme Coordinator, Policy, Tech and Innovation, techUK

Zoe is a Programme Assistant, supporting techUK's work across Policy, Technology and Innovation.

The team makes the tech case to government and policymakers in Westminster, Whitehall, Brussels and across the UK on the most pressing issues affecting this sector and supports the Technology and Innovation team in the application and expansion of emerging technologies across business, including Geospatial Data, Quantum Computing, AR/VR/XR and Edge technologies.

Before joining techUK, Zoe worked as a Business Development and Membership Coordinator at London First and prior to that Zoe worked in Partnerships at a number of Forex and CFD brokerage firms including Think Markets, ETX Capital and Central Markets.

Zoe has a degree (BA Hons) from the University of Westminster and in her spare time, Zoe enjoys travelling, painting, keeping fit and socialising with friends.

[email protected]
020 7331 2174

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