From Monolithic to Microservices: How a FinTech Pioneer Revolutionized Its Digital Banking Platform for Scalability and Speed

About the Client

The client is a prominent US-based fintech company specializing in cloud-based digital banking solutions. Their innovative platforms empower banks and credit unions with secure, scalable banking platforms for retail and business digital banking, digital account opening solutions, data analytics, and bank fraud detection technologies.

Their solutions help regional banks better compete with top-tier financial institutions by leveraging advanced banking strategies and best practices.

Goal

Our Fintech client had an ambitious goal to completely transform their banking software products by moving from an outdated monolithic platform to a modern, cloud-enabled, microservices-based architecture.

This shift was essential to address challenges of their legacy system, like poor reliability and limited scalability, which often led to service interruptions. By adopting this new architecture, the client aimed to improve delivery service, respond more quickly to market changes to stay competitive, and keep up with evolving regulations.

The transformation would also strengthen their position as a leader in the Fintech industry, ready to tackle today’s challenges and seize tomorrow’s opportunities.

1. Backlogs and SLA breaches

A growing backlog of unresolved bugs and issues impacted SLAs, resulting in financial penalties from end clients. Service interruptions eroded customer trust and increased overall operational costs.

2. Manual testing and inefficient QA

Reliance on manual QA processes significantly slowed down product update release cycles and increased regression risks. This impacted both compliance, user experience and overall customer satisfaction.

3. Knowledge gaps

A lack of documentation and limited knowledge transfer during internal and vendor collaboration increased the project complexity, resulting in technical inefficiencies and a continued dependency on the legacy system.

4. Cultural and operational shifts

New leadership sought a more agile, self-directed culture, but entrenched processes, large backlogs, and an overburdened team slowed progress.

Solution

Bridgenext was selected as their partner due to our extensive experience in the FinTech and financial services industry. We provided an objective perspective on their operational challenges and, as a trusted partner, demonstrated a deep understanding of their vision. This expertise and collaborative approach were the key factors in their decision to choose Bridgenext to accelerate their modernization journey.

Bridgenext partnered with the client to design and fast-track a comprehensive modernization strategy for their banking software, addressing key operational concerns while ensuring compliance and laying a strong foundation for future scalability. Key technical initiatives included:

Agile Team Structuring and Scaling

  • Provided a dynamic group of 120 skilled professionals strategically organized into domain-specific Agile Scrum teams to enhance problem-solving.
  • Drastically reduced the bug backlog impacting SLAs by identifying and prioritizing high-risk issues.

Legacy Architecture Modernization

  • Led the transformation from a monolithic architecture to a microservices-based model, enhancing modularity and enabling seamless cloud integration.
  • Migrated outdated .NET frameworks from WCF to modern .NET Core and REST APIs, improving performance, speed, and reliability.
  • Spearheaded the migration and refactoring of monolith services, transitioning databases from SQL Server to PostgreSQL for greater scalability and efficiency.

Quality Engineering Transformation

  • Developed a robust Playwright-based automation framework, streamlining over 2,500 test cases. This significantly reduced manual regression efforts and ensured more reliable, consistent releases.
  • Developed integration-ready automated test cases for seamless CI/CD integration, minimizing escaped defects and accelerating time-to-market.

Compliance-Driven Access Control

Collaborated closely with the client’s executive leadership to implement AWS Workspaces for QA with VNET isolation, ensuring secure and compliant access to development and QA environments. This approach maintained strict adherence to zero-access policies for production and staging systems in offshore locations.

24×7 Support of Platform Roadmap

Bridgenext was instrumental in facilitating the company’s transition to a Global Capability Center in India, ensuring a smooth and efficient process with robust knowledge transfer mechanisms.

Results

The engagement produced measurable operational outcomes across delivery cadence, platform architecture, test automation, SLA compliance, knowledge transfer, and team capability — all of which reduced customer-facing friction and improved service delivery.

  • Accelerated Time-to-Market – 50% faster UAT execution significantly accelerated feature rollouts for their digital banking platform.
  • Platform Modernization & Scalability – 400+ microservices deployed, creating a fully-scalable cloud-based banking solution – better positioned for future innovation initiatives in predictive AI and enhanced data analytics.
  • Automation & Efficiency – 95% automation coverage reduced manual effort by 40%, cutting release times and improving reliability.
  • Improved SLA Performance – 80% reduction in SLA-impacting issues, significantly reducing penalties and enhancing customer satisfaction.
  • Enhanced Knowledge Management – Comprehensive platform documentation and addresses knowledge gaps and fosters stronger collaboration.
  • Collaborative and Empowered Team – By expanding the team and streamlining workflows, we cultivated a confident and collaborative environment. This transformation enabled more efficient delivery and introduced quarterly feature releases for FIs.

Industry

BFSI

Benefits

  • 50% Faster UAT
  • 400+ Microservices Deployed
  • 2500+ Tests Automated
  • 80% Fewer SLA Issues