Introduction

The customer, a leading Pharmacy Benefits Administrator (PBA), faced challenges in scaling their legacy infrastructure, which processed approximately 1 million claims daily. As the organization onboarded new clients, the on-premises systems struggled to handle the increasing load, leading to potential business losses. 

Concept and Opportunity

The PBA sought a modernized solution to address scalability and performance issues while maintaining cost efficiency. The goal was to ensure high availability and faster response times, enabling the organization to support growing customer demands without compromising service quality.

Solution

A multifaceted cloud-based solution was implemented to address the challenges:

Cloud Architecture Implementation

  • Transitioned to AWS with distributed processing capabilities for seamless scalability.
  • Serverless solutions like AWS Lambda and API Gateway were introduced to achieve high availability at a lower cost.

Data Migration

  • Legacy data was migrated to the new system with zero data loss, ensuring continuity in operations. 
  • Data integrity and security were maintained throughout the migration process.

Performance Optimization

  • Edge locations via AWS CloudFront were utilized to route traffic efficiently, reducing latency and improving response times.

Database Modernization

  • Migrated to RDS (MySQL) for optimized database management.
  • Integrated Kinesis for real-time data streaming and analytics.

Technology Stack

The solution leveraged the following technologies:

  • Application Framework: MERN Stack (MongoDB, Express.js, React.js, Node.js)
  • AWS Services: Lambda, API Gateway, CloudFront, RDS (MySQL), Kinesis
  • Data Processing: AWS Glue, S3

Readiness and Adoption

The solution leveraged the following technologies:

The application is now live in production, with all clients successfully migrated to AWS. The system demonstrates exceptional scalability and reliability, seamlessly handling increased workloads without interruptions. By leveraging AWS's robust infrastructure, the platform ensures high availability, faster response times, and the ability to accommodate future growth demands with ease.

Result

Result Illustration

The transformation delivered remarkable outcomes:

  • Enhanced Scalability: The platform now processes over 3 million claims daily, tripling its previous capacity and ensuring seamless operations even during peak loads.
  • Cost Savings: Serverless deployments and optimized resource utilization significantly reduced infrastructure costs, eliminating the need for expensive on-premises hardware.
  • Improved Availability: Downtime has been minimized, achieving a 99.9% uptime SLA, ensuring consistent service delivery and enhancing user trust.
  • Performance Optimization: The system's architecture improvements have reduced latency and improved transaction processing speeds, delivering a faster and more reliable user experience.

These results highlight the success of the transformation in modernizing the platform, enabling it to meet current demands while being well-prepared for future growth.

Conclusion

By adopting cloud-based architecture and serverless solutions, the PBA successfully modernized its operations. The migration not only addressed immediate scalability issues but also positioned the organization for sustained growth and operational efficiency. 

Recommendations

To further enhance system performance:

  • Implement AI-driven analytics for fraud detection and predictive insights.
  • Expand edge locations globally for even faster response times across regions.
  • Continuously monitor system performance using AWS tools like CloudWatch for proactive maintenance and optimization.