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  • GenAI-Powered Scalable .Net Future for a Leading American Financial Services Company

About the client

The client, a leading financial services provider in the United States, offers a comprehensive portfolio of banking and financial solutions. Services include personal and commercial banking, mortgage lending, investment advisory, and wealth management. They serve millions of individual and business customers through an extensive network of community banks and digital platforms. With a strong emphasis on customer-centric innovation, the client provides specialized offerings such as treasury management, asset-based lending, capital markets services, and international banking.

Market trends

The financial services industry is undergoing a significant transformation, driven by evolving consumer expectations and rapid technological advancements. Traditional banks are increasingly constrained by legacy systems that limit their ability to innovate, respond quickly to market demands, and meet growing regulatory requirements. Despite efforts to modernize, many institutions continue to allocate a large portion of their IT budgets to maintaining these outdated systems, resulting in inefficiencies, high costs, and integration challenges.

To address these issues, financial institutions are turning to generative AI as a strategic enabler of modernization. GenAI offers new ways to streamline operations, improve customer experiences, and accelerate transformation efforts. By helping banks become more agile and responsive, it plays a critical role in overcoming legacy limitations, positioning them for success in a competitive and fast-evolving market.

Need for change

For several years, the client depended on ColdFusion applications to support and manage critical banking operations. While these systems had reliably served their purpose over time, they had gradually become outdated and increasingly difficult to maintain. The codebase had deteriorated into a disorganized structure, making enhancements and troubleshooting more complex. The user interface, unchanged for nearly two decades, no longer aligned with modern usability standards. Additionally, the approaching expiration of on-premises server licenses introduced significant compliance concerns, highlighting the urgent need for change.

Business challenges

  • Redundant features added unnecessary complexity, slowing down day-to-day tasks and frustrating users.
  • Outdated and convoluted workflows made systems hard to navigate, reducing overall productivity.
  • Limited flexibility in the legacy applications hindered the client’s ability to innovate and adapt to changing business needs.
  • Incremental fixes were no longer effective, leading to mounting technical debt and rising maintenance costs.
  • A lack of scalability and usability prompted the need for a comprehensive replatforming strategy to support future-ready banking operations.

LTIMindtree’s solution

Rather than patching the old, the firm chose to reimagine everything for their legacy system modernization. They partnered with LTIMindtree to embark on a bold modernization journey that harnessed the power of GenAI, cloud-native architecture, and intuitive design. The journey began with a proof of concept. LTIMindtree introduced LTIMGenie, a GenAI-powered tool capable of converting ColdFusion code into .NET 8. The results were promising, and the green light was given for full-scale transformation. Key highlights of the solution included:

  • Successfully converted three ColdFusion applications within four months

    Built 100+ integrations using Oracle Integration Cloud (OIC) and SOA Suite 12c

    Successfully converted three ColdFusion applications within four months, covering key modules such as Account Analysis, CIP Exceptions, and Deposit Charge-off

  • Utilized CAST to analyze application dependencies and workflows

    Enabled real-time data transfers from EBS

    Utilized CAST to analyze application dependencies and workflows, ensuring a smooth and informed modernization process.

  • Redesigned the user interface for improved usability

    Implemented barcode and security solutions

    Redesigned the user interface for improved usability, leveraging KOMBAI to transform Figma designs into responsive CSS and React components.

  • Employed LTIMGenie to convert legacy back-end code into a modular .NET 8 structure

    Synchronized Process Data Input (PDI) and Output (PDO)

    Employed LTIMGenie to convert legacy back-end code into a modular .NET 8 structure, while also generating unit test cases and user stories.

  • Replatformed applications from on-premises infrastructure to Azure app service

    Automated reconciliation of GSTR2 with GSTR2A

    Replatformed applications from on-premises infrastructure to Azure app service, and conducted feature rationalization to simplify workflows and enhance user experience.

Tech Stack

  • LTIMGenie: GenAI-powered code conversion, unit testing, and user story automation.
  • Kombai: Front-end modernization from Figma to React.
  • CAST: Deep analysis of workflows and dependencies.

Business benefits

The transformation delivered more than just technical upgrades—it brought real, measurable value:

 

Development effort dropped by up to 30%, thanks to automation and intelligent tooling.

Testing effort was slashed by 46%, accelerating time-to-market.

Migrating the applications to Azure helped retire expiring on-premises licenses, ensuring regulatory compliance while providing a scalable and future-ready infrastructure.

The revamped interface delivered a modern, intuitive experience, significantly improving usability and user productivity.

Back-end modernization introduced a modular structure, simplifying future updates and reducing time-to-market for new features.

Redundant features were eliminated and workflows streamlined, resulting in better organization and enhanced overall usability.

Testimonial – Hidden

“I could not ask for a better partner, LTIMindtree. I don’t believe there is a challenge that the team could not solve. You guys are awesome partners. I look forward to our continued partnership.”

Director, Process Optimization

Conclusion

This legacy system modernization marks a pivotal shift for the client—from maintaining legacy infrastructure to embracing a scalable, intelligent, and future-ready digital ecosystem. By moving away from outdated ColdFusion applications and embracing a modern .NET 8 ecosystem powered by GenAI, the client redefined how their teams work, innovate, and serve customers. With LTIMindtree as a trusted partner, the organization was able to streamline operations, improve usability, and future-proof their infrastructure—all while significantly reducing development and testing efforts. This case is a powerful reminder that with the right strategy and tools, modernizing legacy systems isn’t just possible—it’s transformative.

Ready to break free from legacy? Let’s build what’s next—together.

Contact us at BFS.AI@LTIMindtree.com to start your modernization journey.

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