Conf42 Golang 2025 - Online

- premiere 5PM GMT

Go-Powered Banking: Modernizing iSeries Systems for the FinTech Era

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Abstract

Discover how Go transformed a tier-1 bank’s legacy iSeries infrastructure, enabling faster transactions through innovative concurrency patterns. Learn battle-tested strategies for zero-downtime migrations and see real microservice architectures that process millions of daily banking transactions.

Summary

Transcript

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Hey everyone. Have a good day. I'm, and I bring over 21 years of experience in I series development, project management, and enterprise software solutions with a deep focus on banking, retail, and ERP systems. It's a pleasure to be here today to discuss a critical transformation happening in the financial industry, modern engineer, legacy banking systems who meet with the demands of. So in this session, the bridging banking generations go Power iSeries Modernization. We'll explore how Golang is playing a pivotal role in revitalizing decades old iSeries platforms as a financial institutions, face, increasing pressure to enhance agility. Scalability and responsiveness. Leveraging modern programming languages like Book can bring the gap between the traditional core banking systems and the evolving the needs of digital finance. Join me today as we dive into the strategies, challenges, and solutions seamlessly. Integration modern technologies into legacy banking infrastructure, ensuring system. Secure and future Ready. Let's see, in this one, the next slide, the banking technology gap. as we all know, legacy banking, system remain the backbone of financial operations worldwide. Many institutions still rely on I series, a four. Mainframes that have been running uninterrupted over many years. These platforms process millions of transactions daily, but they operate on aging COBOL and RPG core basis, making it necessarily difficult to adopt to the modern FinTech needs. So what is. Built on realtime processing, seamless customer facing APIs, omnichannel experiences, and cloud narrative architecture. So banks and financial insurance institutions must meet these evolving expectations, but legacy systems often struggle to keep it up without exponential modifications. So this creates a technology gap that must be addressed. So what is the next challenge here? the integration challenge we will see here, the biggest challenge in the financial institutions space is modernizing these legacy systems without disrupting 24 by seven operations. So downtime is a not an option here, and security should be, remain our top priority and the regulatory complex must be maintained at all times. Finding the right approach to modernization on these balances. Innovation with the stability is the key, of staying ahead in today's financial ecosystems. So in, in the next part of the session, we will explore how the leveraging the modern technologies, like Golan can help with just this gap, enabling a smooth and secure transition into the future banking. So let's see why the Golang in for the banking modernization. So why Golan? Let's see. And the see the this, why the Golang here? So go brings several advantages that making it an ideal choice for the modernizing the banking infrastructures. Let's see what all. So go lightweight. Go ratings efficiently handle thousands of in transactions with minimal memory usage. How performing traditional threading models. And second one is a strong type system. So go compiled time type checking ensures transaction integrity and system reliability, preventing costly error. Next one is built in security. So the gross automatic memory management eliminates vulnerabilities like the buffer workflows and memory leaks, protecting sense, two financial data. And next one is a compilation to the single binary. So go application replies, standalone executables with no external dependencies, streamlining compliance, and. Our next slide is based on the microservices architecture implementation. How we implemented here. We see here now. First one is, So for the successful or before that, we will see actually for successful modernization I series systems, we use a microservice driven approach here. We all know that in today's you of FinTech era, everybody in the micro, they are in microservice are playing the major role in, modernizing any system. So let's see the, what is the fire, legacy I series here, traditional mainframes continue running or as one continue running in this mission critical operations. And the go API layer, the lightweight microservices in the Golan transform legacy data models and securely route transactions. Next one is the integration hub. Integration hub via enterprise grade message brokers ensure reliable communication between the world and the new systems. Next one, our a. Expose banking functions, but the web and the mobile applications while maintaining the security protocols. Let's see the word the next, you know the case study where, the banking transformation happens here. Let's look at this realtime world example here. A tire banking transformation, to modernize its ICD system while ensuring that the zero downtime and compliance, let's see, assessment. Assessment here actually. So we audited, 15 plus years of, customizations identifying over two hot team mission critical processes. The architecture design we use here is we build a go based processing framework, handling 3000 plus transactions per second with 99.999%. Migration strategy. We use Aries. We developed a secure data transformation, pipelines, migrating millions of financial records with the complete audit traceability. The next one is the implementation 50 plus goal line power microservices for deployed, reducing the transaction processing time by 78 percentage while ensuring the compliance. Let's see what the next slide is. A performance improvement. here if you see that the results are, really remarkable here, if you see or what is the performance improvement here? 96 percentage faster processing means transaction now execute in milliseconds instead of seconds. And, the system availability is, as we discussed in the last, slide, 99.99 percentage of the system availability. That is a seamless migration with near perfect uptime and the throughput increase. The new system handles significantly higher traffic, especially during the peak financial periods. So this is really whole improvement here. And now if you see that the 75 percentage of the resource reduction is happens here, the lower infrastructure cost while maintaining the compliance. So let's see the next slide, the key technical implementations, here. Okay, the, what are the key technical implementation we see? We achieved these results by, through key technical, enhancements including, database connectors. Optimize Go drivers for I series DB two integration with asset compliant transactions. The message transformation efficient binary processes to convert, legacy E-B-C-D-I-C data to the modern formats like the J XML without any data loss. And next one is the authentication. Securely linking legacy access control with RIDC authentication frameworks, and next, when the modern monitoring, the integration. So Unified telemetry providing these, realtime observability across the legacy and modern component. So what is the I know deployment approach? Okay. So here is the, zero downtime deployment approach, pattern we use. there are, to ensuring these continuous operations. we implemented a zero downtime, deployment strategy, using, these are the four methods. The first one is the blue green deployment. What is the blue green deployment is nothing but this a parallel production environment with instant, instantaneous failovers. So the power process will always help us here actually. And now go for the staged rollout, the canary deployments for the progressive traffic migration and realtime monitoring. we use real. And next one is the continuous validation. So real, right? verification ensures the continuous across the both system, the world legacy, as well as the new modern systems. next one is automated rollback. So automated rollback the circuit, breaker, patterns, detect failures instantly and record automatically. So let's see. the next slide, is, that this is the key slide actually, the regulatory compliance solutions. we will see here the compliance is critical in banking. To keep, regulations, our, solutions are tailored to meet these demand needs to modern, financial landscape, particularly focusing on the data protection audit trails and processing Ls, SLS. So let's begin with the data protection. Our system leverages the robust memory safety. Which effectively eliminates the risk of buffer workflow vulnerabilities. This is crucial for the protecting sensitive financial data and preventing unauthorized access with our solution so you can rest assure that your data is secure. Moreover, our implementation satisfies the leading data protection standards, including GD. P-C-I-D-S-S and base three. This means that not only is your data is secure, but it also means the strict regulatory requirements demanded by the financial authorities. Next one is the audit trials. So in today's, regulatory environment, critical to trace. So our solutions, cryptographically secured immutable logging system, which captures all across system transaction flow with nanosecond precision. This means you can be certain that no transaction goes unrecorded, provisioning unbreakable chain of evidence. These solutions guarantees. Compliance with critical regulations such as, so my FID two, and various, regional financial requirements. This gives you complete assurance that the all transactions are traceable and auditable at any given time. Next, go for the processing. left final talk. This one about the processing s ls. So our solution includes realtime performance monitoring with automated altering, ensuring that your transaction processing constantly meatless, strict priming thresholds. This realtime monitoring helps you to stay on top of performance, minimizing risk, and improving operational efficiency. Compliance with key payment processing regulations like Swift, sepa, and Fed these guarantees that all transaction process in accordance with the most demanding global standards. So here in conclusion, we say our regulatory compliance solutions are designed to offer comprehensive realtime protection and transparency across your financial systems. Robust data protection, auditable transaction logs and stringent processing. SLS. We ensure that your operations are always in compliance with most financial regulations. So let's see the next slide, the code examples in the I series integration metrics. We'll see how the performance metrics are here. So here is the performance comparison between the traditional as well as the go based. integrations. So here, 96, percentage lower response time compared, to the legacy system. So processing time reduced from the milliseconds, reduced from seconds to the milliseconds year and throughput is, has been increased high times faster, and 65 percentage have lower CPU usage. Also 74 percentage of the memory usage. So this is a dramatic efficiency improvement. lead to of course, the cost savings here. Let's say. What is the future? Next slide. we will discuss about the future banking integration roadmap here. So let's, looking ahead, we are focusing on four key areas of banking modernization here. This roadmap outlines our commitment to the creating the seamless. Scalable and innovative banking's ecosystems. Let's take a look at each of e pillar that will drive, this transformation. Let's first talk about the cloud native banking. So we are moving, towards the future where the banking operations are powered by the scalable, microservices built with go an efficient and high performance programming language. So these microservices are designed, with auto-scaling capabilities, ensuring that your, banking systems can easily handle, dynamic workloads growing our shrinking as needed. So this cloud native approach enables us to provide, greater flexibility, faster, deployment cycles. And improve operational efficiency, ultimately driving the future of banking with the speed and the scalability. So the next one is, API, economy participations here. So the banking ecosystem will fully, leverage open banking APIs, creating opportunities for the third party integrations, and fostering collaboration with innovators. So this participation opens the door to, world of the new in innovative financial products offering greater choice for the personalizations to the customers. So these APIs will allow for seamless integration across platforms driving the development of modern customer centric financial services that are built for. Okay, next for the realtime processing, is another key component for our, roadmap. So we are introducing, high pu event driven architecture that enables the sub millisecond transaction processing. So this ensures that the transactions are process instantly improving customer experience and meeting the demands of today's financial environment. So with real time processing, we can offer faster payments and quicker approval and immediate response to the customer actions, ultimately eliminating the entire banking experience. So lastly, the, legacy integration layer. so our legacy integration layer is connectivity foundation. Which facilitate bidirectional data synchronization between the legacy systems and the modern platforms. So this ensures that the transaction to new technologies, that doesn't disrupt existing operations, and it also allows for the smooth, continuous data flow across the systems. So by bridging this gap between the world and the new technologies, we. Your customization to move forward without losing value of your legacy infrastructure. So here in this slide, we can conclude that our future banking integration roadmap represents a holistic approach for transforming the banking systems for the digital age, with the cloud narrative architecture, participation in the econ a p economy, realtime processing capabilities, and the seamless legacy integration layer. We are setting a stage for the truly next generation banking experience. So the, the final year, the final conclusion, we say that actually the go along offers a powerful solution for the modernizing I series banking systems. It bridges the gap between the legacy infrastructure and the modern FinTech requirements delivering the agility, performance, security, and compliance. So by leveraging this, Golan infras, financial, Golang financial institutions can future proof, their operations while maintaining the reliability of their core banking systems. So finally, I can thank you all. Thank you all for your time. I look forward to your questions and discussions, how we can drive banking modernation together. Feel free to reach me out. Triva alum us at gmail com. I repeat it again, please reach me out on triva alum us at gmail com. Wishing you all a great day ahead. Thank you and thank you everyone. Bye.
...

Srinivas Allam

IBM iSeries Senior Program Analyst @ Core ITS

Srinivas Allam's LinkedIn account



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