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Cloud strategy should facilitate application mobility

BFSI organizations are now conscious of the developments in the domain of cloud and are examining the best-suited architecture to ensure efficiency and cost effectiveness :

A sizeable majority of banks have started exploring the potential of the cloud as a business strategy but only a few seem to be actually using its abilities and capabilities to support these institutions in disrupting the marketplace. It is a well-established fact that cloud can be the foundation for a comprehensive transition that BFSI institutions need to achieve in order to be a serious player in the new age financial services business. Institutions undertaking piecemeal cloud projects may find it difficult to realize the desired results.

When banks and financial services institutions begin to rely increasingly on the cloud, there are questions that come up. Are they still using the traditional 3-tier architecture for new applications? What percentage of the new applications are developed on cloud architecture? Are they adopting hybrid cloud architecture, or there are plans to do so in the near future?


Sanjay Gupta, President & Business Head- IT, Kotak Mahindra Bank, believes the traditional architecture will co-exist for a good amount of time along with new ways of designing and tools for development. “However, the techniques for innovating front-end experience are changing at a faster pace than for the back-end systems. With the evolved landscape, the front-end has to be cloud and microservices have to be ready for a smooth and seamless experience. Serverless computing, dynamic scaling up and scaling down of computer power, multi-cloud, and hybrid cloud integration are capabilities that new age architecture has to leverage to add value to enhanced customer experience,” says he.


Sanjay Gupta
President & Business Head- IT, Kotak Mahindra Bank

Sankarson Banerjee, CIO, RBL Bank, says his bank has been moving away from traditional 3-tier architecture for a long time, even for on-premise applications. He explains: “The 3-tier was appropriate for client server applications, but modern web applications do not fall neatly into the 3-tier paradigm; many are 1-tier, 2-tier or n-tier or even not tired at all. Mesh architectures, grid architectures, graph architectures, serverless architectures – all these have been evolving for some time for different use cases and we’ve started to adopt all these different models for different applications.”

He emphasizes that hybrid cloud is about application deployment, not really about application architecture. “It can be applied to 3-tier architecture or (say) mesh architecture equally. It means that the application can sit partly on-premise (private cloud) and partly on public cloud. This is increasingly the go-to architecture of enterprises, since pure public cloud can be very expensive while pure on-premise is very limiting. An optimal mix gives us benefits of scale and flex while managing costs,” he explains.

Gaurish Lawande, Director – Systems Engineering at Nutanix, adds another perspective. Says he: “Modern enterprises use a large data plane; data can now be stored on the public cloud, private cloud, and at the edge. Customers can now choose the platform (SaaS, PaaS or IaaS) depending on the type of workload and what best suits their needs.”

As the amount of data generated by the enterprise continues to increase in volume, it will be important for businesses to integrate and utilize the latest technologies and innovations to extract even greater, real-time value from that data. Interoperability and enterprise-wide access to the data will be key factors for decision-makers to consider, as they look for an IT architecture that can help them remain relevant and capable of acting, reacting and anticipating any operating conditions or market condition, he adds.


Gaurish emphasizes that applications that run the modern enterprise certainly need an infrastructure to match. “They need an infra that that is web-scale, offers various consumption models (appliance, SW or in the cloud), offers a choice between opex and capex, is scalable, and most importantly, is platform agnostic. HCI and software-defined solutions will be seen as fundamental to their continued growth and survival,” he explains.

Given the preference for cloud-based solutions among startups and fintechs and given the cautious approach banks have towards the cloud, hybrid cloud architecture can be a potential solution. What are the new and emerging applications for which the hybrid cloud is an apt model?

Sankarson Banerjee of RBL Bank says the caution of established businesses like banks towards the cloud has mostly to do with the management of change. “Banks already had heavy investments in on-premise hardware that they wanted to maximize the use of, and unlike startups had legacy applications that were not cloud-ready. As banks start transforming into cloud-native applications for their digital transformations, adoption becomes more widespread,” he points out.

He hastens to add that hybrid cloud is not a risk management strategy for going towards full cloud; but can only be a permanent strategy for cost management and data control. He then elaborates: “Cloud is about renting, so it is more expensive and has an additional profit and loss impact. Banks will always mix buy with rent, even as they move to all cloud-native applications. The only difference will be that even the on-premise will look like the cloud and have similar features so that applications can move in and out. The most cost-effective mix is to have steady workloads on premise and peaks and surges on cloud.”


Sankarson Banerjee

He also points out that there is the issue of data control – long term (7-10-year storage or longer) – which is sometimes best done on premise because this period may exceed the lifetime of any cloud contract. “However, this is changing as cloud providers move from being startups to long-running, stable, large businesses able to sign long-running contracts,” says he.

Sanjay Gupta of Kotak Mahindra Bank says cloud adoption for banks entails learning, which is still ongoing and has not matured to the desired levels. Security is going to be the key and hence, security of information (infosec) has to be considered and evaluated as we work towards this and as the usage increases, he adds.

He confirms hybrid cloud is one such way of ensuring data security that enables banks to play an intelligent role between service providers and customers. “Hybrid cloud can play an enabling role to intensify opportunities for new use cases and ensure trust from a data security point of view,” he adds.

Gaurish says BFSI organizations have been some of the early adopters of new technology. Nutanix, he says, is associated with some of India’s largest banks, broking firms, lending institutions and payment companies as customers, which are engaged in modernizing their infrastructure and leverage the company’s Enterprise Cloud Platform to run their mission-critical applications and workloads. “These organizations have been enthusiastic about the potential of technology to improve customer experience,” says he.


Gaurish argues that financial companies understand the importance of digital innovation to strengthen their operations and remain competitive, with a shorter time-to-market. “For example, having the ability to launch new mobile services in a matter of days or weeks instead of months, is a huge benefit especially in times of change. They realize that simplifying their IT helps free up resources for other critical business functions such as attending to customer requirements. Ultimately, more FSIs in India will gravitate to the simplicity, flexibility and scalability of software and cloud as new business models,” says he.

About Nutanix’s role in helping these organizations, he says be it with End-User-Computing, Application or Database Automation, Nutanix solutions have enhanced IT teams’ experience at every stage of execution. “This in turn leads to faster time-to-market and a great customer experience for the customer’s customer,” says he.

Gaurish also says as a service provider, Nutanix has witnessed rapid cloud adoption in the BFSI sector. Both public and private clouds provide benefits for BFSI organizations, he says, but to truly gain a competitive edge, they are increasingly looking to a hybrid cloud infrastructure.

“Hybrid cloud delivers the benefits and convenience of the public cloud, together with the security of a private cloud, without compromising on efficiency and cost. This allows financial companies to be more empowered to move applications across clouds with ease and gain greater control of their IT spend, while remaining confident in the security of their data,” he elaborates.


Gaurish is of the view that traditional apps will continue to be the mainstay of BFSI organizations for some time. While the cloud is a de facto platform, BFSIs have core systems and applications that are not architected for the cloud and realistically it will take time for this to happen,” says he, arguing: “Instead, financial companies will adopt a hybrid approach, by moving their data across a mix of public cloud, private cloud / on-premise. As that transition takes place, the BFSI industry can ensure it is ready with the infrastructure and skills to support traditional as well as cloud-native apps.”

How does top management of financial institutions view cloud and hybrid cloud in terms of expected benefits?

Sanjay Gupta lists managing costs, risks, infosec, performance, dynamic scalability, integration, maintainability, use of AI, and skills to sustain as the areas that have to be addressed as the journey towards cloud takes shape. Cloud usage, he affirms, is an increasing trend and the speed of adoption is expected to increase as we keep advancing these parameters. The alignment of stakeholders is happening naturally as usage and adoption increases, he adds.

Sankarson Banerjee maintains that the convergence among stakeholders has been increasing in pace, especially as the knowledge of operational risks and procedures about cloud becomes more widespread. Earlier, he says, it was up to the CIO/CTO to articulate the benefits, but now the businesses are able to understand and evaluate the benefits directly.


Gaurish Lawande
Director – Systems Engineering, Nutanix

He says SaaS has accelerated this trend. “SaaS often speaks directly to business, with the CIO as an enabler, and as they become richer and more common, business starts to gain a direct understanding. This helps greatly with convergence. The main SaaS movers here are GSuite/O365, Human Capital solutions, CRM solutions etc, he adds.

Another development according to him is that convergence will increase. “Everyone is becoming much more digital native,” says he.

Gaurish responds to a specific query on the challenges BFSI companies faced in scaling VPN access and related services to employees working at home during the pandemic: “It was more of a logistical challenge to most organizations, than an ‘IT challenge’. At the beginning of the lockdown, as organizations were forced to adopt remote working almost overnight, the priority was ensuring that employees had access to the resources that enabled them to do their jobs. It was also important to ensure that this access to company and customer data was secure.”

He says for many organizations the task at hand was moving not just a few, but hundreds of employees to the remote working model, and scaling their existing services to accommodate this shift meant they had to invest in even more hardware. “Luckily, organizations realized they had another, better option – moving towards cloud-based services and solutions like Nutanix, which allowed them to quickly scale up or down as per their requirement, and on demand,” he adds.

Such a situation also necessitated the need for a secure control plane. Organizations, Gaurish says, realized they required a comprehensive control plane for holistic administration across systems, storage, databases, clouds, applications and networks. “And the pandemic has forced customers to consider solutions that would make managing workloads super easy irrespective of their data plane,” he adds.


When it comes to customers, today’s customers are digitally savvy, well-informed. So, when a bank or a financial services institution looks at upgrading the customer journey it would need upgrade of back-end and front-end technologies, Sanjay Gupta says.

CX is the key for making customers adopt products and this is something which has to be a continuously evolving phenomenon based on how customer behavior changes from time to time, he says. Customer behavior has to be understood in terms of segmentation, usage patterns, personalization, transaction cycle time, device friendly UX, incentivisation etc and only analysis of these parameters will result in improving the overall CX.

He adds: “The separation of user interface, APIs and microservices, and light weight front-end pages are technologies that can be deployed to create a good CX. Finally, CX is about engaging through autonomous methods, using AI to get insights and personalise transactions and transition customer journeys into life journeys to simplify day-to-day needs.”

Sankarson Banerjee says there are 2 parts to the issue. He explains: “Part 1: The key CX parameters we look at are usage and adoption. Are people using the features we are launching, and is it a permanent adoption sustained over time? Many digital features seem great on paper but turn out to be difficult for people to understand or unattractive to adopt on a sustained basis. Users tend to fall out of these back into traditional channels. Now that covid has closed the traditional people-centric channels, it is more important than ever to understand why people use (or not use) something, and what helps them adopt it over the long term.”

“Part 2: Front-to-back, we’ve been shifting from traditional monolithic stacks to micro-frameworks and lightweight back ends. The reasons are many – monolithic stacks have long learning curves, large deployment cycles and are often limiting when it comes to paradigm evolution. Micro-frameworks can be mixed and matched, and because they tend to be small and specialized are often quick to learn. They are also more agile when it comes to shortened deployment cycles. As paradigms evolve, micro-frameworks are easy to discontinue in favour of newer frameworks in newer paradigms,” he concludes.

It is common knowledge that customer experience is often the deciding factor when it comes to banking. Today’s customers want personalized interactions, simplified banking and access to their accounts through technology. Banks that can innovate and meet customers’ needs have a huge competitive advantage.

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