Case Study - Crystal Samaksh Lambda

Crystal Samaksh faced critical operational challenges that impacted performance, security, and service delivery for its customers and business stakeholders. The existing infrastructure lacked a global content delivery and edge security layer, making it difficult to handle traffic spikes, ensure secure access, and deliver timely services to a geographically dispersed user base.

Key Challenges

• High Latency & Service Delays:Manual routing of requests to origin servers caused slower response times for members and partner hospitals across different regions. 
• Unpatched Security Gaps:Lack of automated certificate management, incomplete WAF configurations, and limited access controls exposed workloads to potential vulnerabilities. 
• Security Risks:Publicly accessible application endpoints and backend servers increased the risk of unauthorized access, data breaches, and non-compliance with regulatory standards. 
• Scalability Constraints:The system struggled to handle sudden surges in traffic, such as claim processing peaks or enrollment periods, resulting in slower services. 
• Operational Inefficiencies in Notifications:Reliance on traditional or third-party messaging systems for claim status, alerts, and communications was less reliable and more costly. 

i2k2 Networks designed and delivered a secure, production-grade AWS-native solution for Crystal Samaksh, following the AWS Well-Architected Framework. The solution emphasized global content delivery, scalability, and security while ensuring compliance with regulations and minimizing operational risk. 

Solution Highlights 

Content Delivery & Performance Optimization 

• Deployed Amazon EC2–based application infrastructure in the Asia Pacific (Mumbai) region to deliver reliable and consistent performance for Crystal Samaksh’s core applications. 
• Implemented Elastic Load Balancing (Application Load Balancer) to distribute incoming traffic efficiently across EC2 instances, improving availability and ensuring stable performance during varying workloads. 
• Utilized Amazon S3 for secure and cost-effective storage of application assets, logs, and operational data, reducing dependency on compute resources for static content. 
• Optimized network architecture using Amazon VPC, enabling controlled traffic flow, secure communication between services, and reduced latency within the cloud environment. 
• Enabled AWS WAF to protect application endpoints from malicious traffic while maintaining uninterrupted access for legitimate users. 
• Leveraged OpenVPN Access Server for secure remote access to cloud resources, ensuring encrypted connectivity for administrative and operational teams. 
• Monitored system performance and resource utilization using Amazon CloudWatch, allowing proactive identification and resolution of performance issues. 

Security & Compliance 

• Implemented AWS WAF to protect public-facing application endpoints from common web threats such as SQL injection, cross-site scripting (XSS), and malicious bot traffic. 
• Deployed application workloads within a secure Amazon VPC, ensuring network isolation and controlled access between cloud resources. 
• Configured security groups and network access controls to restrict inbound and outbound traffic, reducing the overall public attack surface. 
• Enabled AWS CloudTrail to record API activity and maintain detailed audit logs for security monitoring and compliance tracking. 
• Activated Amazon GuardDuty for continuous threat detection, identifying anomalous behavior, unauthorized access attempts, and potential security risks. 
• Utilized AWS Secrets Manager and AWS Key Management Service (KMS) to securely store and manage sensitive credentials and encryption keys. 
• Enabled Amazon CloudWatch for real-time monitoring and alerting on security events and system health. 

Scalability & High Availability 

• Deployed application workloads on Amazon EC2 within the Asia Pacific (Mumbai) region, providing reliable compute capacity to support Crystal Samaksh’s operational workloads. 
• Implemented Elastic Load Balancing (Application Load Balancer) to distribute incoming traffic across multiple EC2 instances, improving fault tolerance and ensuring consistent application availability. 
• Designed the infrastructure using Amazon VPC best practices, enabling controlled network segmentation and resilience against single-instance failures. 
• Ensured service continuity through careful instance sizing and resource monitoring, allowing the platform to handle workload variations without service disruption. 

Notifications & Operational Efficiency 

• Utilized Amazon CloudWatch to monitor application performance, resource utilization, and operational health, enabling proactive issue detection and faster incident response. 
• Enabled AWS CloudTrail to capture detailed API activity logs, improving visibility, governance, and audit readiness across the AWS environment. 
• Streamlined operational workflows by centralizing monitoring and logging, reducing manual intervention and improving day-to-day infrastructure management efficiency. 
• Improved overall system reliability by leveraging real-time alerts and performance metrics to support informed operational decision-making. 

Security and Monitoring: 

• Configured AWS WAF to protect Crystal Samaksh’s public-facing application endpoints from SQL injection, cross-site scripting (XSS), bot attacks, and other common web threats. 
• Deployed application workloads within secure private Amazon VPC subnets, ensuring network isolation and controlled access to critical systems. 
• Implemented NAT Gateways and VPC Endpoints to enable secure outbound communication while preventing direct public exposure of backend resources. 
• Enabled Amazon CloudWatch to continuously monitor system performance, resource utilization, and application health, supporting proactive issue detection. 
• Activated AWS CloudTrail to log all AWS API activity, providing complete audit trails and improved visibility for governance and security reviews. 
• Utilized Amazon GuardDuty for continuous threat detection, identifying anomalous activity and potential security risks in the AWS environment. 

• Improved application performance: Optimized compute, networking, and load balancing using Amazon EC2, Elastic Load Balancing, and VPC architecture resulted in faster and more consistent application response times. 
• High availability for critical services: Use of Application Load Balancer and resilient EC2 deployment ensured continuous availability of applications, minimizing service interruptions during maintenance and operational changes. 
• Enhanced operational visibility: Centralized monitoring and logging through Amazon CloudWatch and AWS CloudTrail improved system visibility and enabled faster issue detection and resolution. 
• Strengthened security posture: Implementation of AWS WAF, private VPC subnets, GuardDuty, and strict network controls significantly reduced exposure to external threats and unauthorized access. 
• Reliable and secure access: Secure remote connectivity using OpenVPN ensured encrypted access for operational and administrative teams. 
• Operational efficiency and cost optimization: Right-sized EC2 resources, optimized storage usage with Amazon S3, and controlled data transfer resulted in a cost-efficient cloud environment while maintaining performance and reliability.