Digital Banking Leader Achieves 70% Cost Savings With OpsTree

A leading digital banking company in India, serving over 100 million KYC-verified customers and gaining 400,000 new users each month.

The Problem Statement

The client wanted to address server vulnerabilities, optimize resources and manage real-time data for stakeholders amid high traffic. All of this needed to be achieved while supporting rapid customer growth and complying with strict RBI guidelines.

Challenges

Adhering to stringent governance and compliance standards set by the RBI for its operations.

Scalability issues due to overwhelming customer growth put pressure on the platform’s capacity.

Difficulty in managing and patching over 1,000 servers, each with a vulnerability rate of 70-80%.

High costs and poor manageability resulting from a large number of unused resources.

The need for automated hot patching and upgrading the entire tech stack.

Challenges in real-time data management for customers and retailers amid heavy traffic.

Solutions

With a clear emphasis on scalability, security, and resource management, our experts elevated the platform’s performance. This was accomplished without any disruption, maintaining compliance, and supporting rapid customer growth all at once.

Elastic Kubernetes Service (EKS) for real-time scalability and availability.

Migration from Harbor to Elastic Container Registry for container image management.

Role-Based Access Control (RBAC) on EKS clusters and a hardened Kubernetes cluster in-house for improved security.

Kubernetes deployment through AWS, integrated Prometheus and Grafana for observability, and set up Elastic for application logging.

Upgrading Kubernetes from version 1.09 to 1.21 and assisted with migrations of Java, Kafka, Elastic, and Zookeeper to modernize the tech stack.

Addressed Log4j vulnerabilities and integrated AWS Active Directory for specific AWS consoles for better platform security.

An automated backup solution on Managed and self-hosted PostgreSQL along with retention policies to lower the risk of losing critical data.

Set up IAM key rotation every 90 days and introduced multiple worker nodes to manage traffic effectively.

Automated server management with Ansible for 1000 servers and used Salt Stack for banking application servers.

Outcomes

Better Performance →

Achieved over 50% improvement in system performance with the upgraded tech stack!

Reduced Vulnerabilities →

Achieved a 35% reduction in vulnerabilities by addressing critical security issues.

Significant Cost Savings →

Reduced container registry costs by 70% via optimized resource management and container image storage solutions.

Improved Developer Insights →

Helped developers gain better visibility into infrastructure information.

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