Case Study

Accelerating Enterprise API Migration from MuleSoft to Kong for a UK Bank

Industry

Banking

Location

Our Contributions

API Modernization, Integration Transformation, Large-Scale Migration

Technologies

Kong, Spring Boot, Java

Coforge partnered with a leading UK bank to accelerate the migration of its enterprise integration landscape from MuleSoft to Kong. With MuleSoft approaching end-of-life, the bank required a fast, scalable, and low-risk migration strategy to ensure continuity of critical banking services.

By leveraging automated migration frameworks and a POD-based delivery model, Coforge enabled the seamless transition of a large API portfolio while modernizing the architecture in line with API-led and cloud-native principles. The transformation ensured operational stability, improved efficiency, and accelerated platform adoption.

Transformation Timeline

Phase 1

API portfolio assessment and dependency analysis

Phase 2

Migration strategy definition and framework setup

Phase 3

POD-based execution and automated migration

Phase 4

Production deployment and optimization

Drag

The Challenge

The bank faced an urgent need to migrate its MuleSoft-based integrations due to end-of-life timelines, requiring a rapid transition of critical workloads without disrupting operations.

The large portfolio of APIs introduced complexity in assessing dependencies, understanding migration impact, and ensuring seamless interoperability across enterprise systems. Additionally, maintaining service continuity during migration was critical to avoid disruption to banking operations.

The organization also aimed to modernize its API architecture to align with cloud-native and API-led design principles while adhering to strict regulatory and compliance requirements.

Our Approach

Comprehensive Migration Strategy

Conducted a detailed assessment of the API landscape and defined an optimal migration roadmap to ensure minimal disruption and maximum efficiency.

POD-Based Scalable Delivery Model

Deployed a POD-based execution model to enable parallel migration streams, accelerating the transition of over 1,000 APIs.

Automated Migration Frameworks

Developed automation-led frameworks to migrate APIs efficiently, reducing manual effort and improving consistency across the migration process.

API Modernization & Cloud Alignment

Re-architected APIs to align with modern, cloud-native, and API-led design principles using the Kong platform.

Seamless Deployment & Transition

Ensured smooth production deployment with continuous validation, maintaining service continuity and compliance throughout the migration lifecycle.

Partner / Technology Ecosystem

Kong API Gateway
Spring Boot & Java
API Integration & Migration Frameworks

Impact to Date

1000+ APIs

Migrated to Kong

+90%

Migration Automation Achieved

250+ APIs

Deployed to Production in 2 Months

30 APIs/Sprint

Consistent Migration Velocity