Case Study

Digital Banking Platform

Modernizing a bank's digital platform to support millions of customers with high reliability and performance.

Digital Banking Platform

Client

A regional bank serving retail and small business customers across multiple states.

Challenge

The bank's monolithic online banking system struggled with peak traffic, had limited observability, and required manual scaling and maintenance.

Outcome

  • Improved transaction throughput by 65%
  • Achieved 99.99% uptime across critical services
  • Reduced incident response time through centralized observability
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Our Approach

Service decomposition

We divided the monolith into clear bounded services, isolating payment, accounts, and notification domains to reduce blast radius.

Event-driven workflows

Introduced an async processing model for payments with durable queues and idempotent handlers to ensure safe retries.

Resilience & security

Applied chaos testing, circuit breakers, and strict authentication/authorization with robust secret management.

Tech Stack & Results

AWS Kafka Redis
Supported a 2M+ user base with predictable scaling and 65% better processing times in production.

Interested in a similar transformation?

We help banks and financial institutions modernize core systems — from payments pipelines to KYC and compliance.

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