Building a modern operational foundation with AWS

How we empowered a leading fintech with cloud-first agility

Client story

Industry

Banking and capital markets

Commercial banking

Who we worked with

A leading nonbank B2B cross-border payments company.

What the company needed

Build scalable, cloud-first infrastructure for innovation
Enable operational independence post-acquisition
Move out of legacy data centers promptly
Decompose monolithic systems into microservices to drive agility

How we helped

Delivered rapid migration with AWS services
Automated workflows with Terraform and Jenkins deployments
Improved infrastructure security with group-managed service accounts
Enhanced infrastructure stability with RabbitMQ and Amazon API Gateway

What the company got

Successfully migrated over 250 applications within 6 months
Achieved up to 30% increase in sprint velocity
Reduced support costs by up to 47%
Reduced variation in defect detection rate (DDR) by up to 20%
Designed a scalable cloud-first infrastructure
Enhanced system reliability and optimized performance

Challenge

Modernizing infrastructure for independence, agility, and growth

As one of the leading nonbank B2B cross-border payments companies, the client faced a critical challenge after being acquired: achieving operational independence within just six months. This required migrating over 250 applications and 650 servers from the parent company's legacy data centers to a modern, scalable infrastructure.

But migration alone wasn't enough. True operational independence demanded shifting from monolithic systems to agile, future-ready frameworks. The legacy infrastructure lacked the flexibility and innovation required to support long-term growth. Without decomposing these systems into microservices, automating regression testing, and embedding continuous integration and continuous delivery (CI/CD) practices, the company risked delays, inefficiencies, and rising support costs. This threatened both operational efficiency and long-term goals.

Solution

Smart transformation through AWS-powered innovation

To meet these ambitious goals, the client partnered with Genpact and AWS to execute a comprehensive migration and modernization strategy. Genpact used robust, integrated solutions to reform, rehost, and replatform.

Reform: We used AWS Command Line Interface and Terraform to streamline the configuration of infrastructural components such as load balancers, security groups, Amazon Route 53, AWS Certificate Manager (ACM), and API Gateway. This ensured automation and security
Rehost: Amazon Elastic Compute Cloud (EC2) instances and Amazon Elastic Container Service (ECS) clusters enabled seamless hosting of microservices, while RabbitMQ delivered a more efficient message queuing and integration
Replatform: Along with critical Windows configuration, we automated service deployments via Jenkins to enable smooth application and system updates

Impact

Embedding operational excellence

In just six months, we delivered an agile and scalable framework that set the client up for its next big growth leap.

The modernization effort delivered measurable results, including:

Up to 30% increase in sprint velocity
Up to 47% reduction in support costs
Up to 20% reduction in variation in DDR

These outcomes boosted system performance across functions. With improved reliability, faster service delivery, and a future-ready infrastructure, the long-term benefits included enriched customer experiences. The partnership between Genpact and AWS freed the company from legacy systems, showcased the power of modernization, and reinforced its position as a leader in cross-border payments.