Payment Gateway Infrastructure on AWS
Designed and deployed a highly secure and scalable cloud infrastructure to support a payment gateway system on AWS. The solution focused on security, compliance, automation, and high availability to ensure seamless financial transactions with minimal downtime and optimized costs.
The infrastructure was built with a multi-layered AWS design:
VPC with Public & Private Subnets for network isolation.
Application Load Balancer (ALB) to handle traffic across multiple availability zones.
Auto Scaling Group of EC2 / ECS Services for high availability and performance.
RDS (Aurora/MySQL) for encrypted and reliable transaction data storage.
ElastiCache (Redis) to improve speed and reduce latency.
Secrets Manager & KMS for managing API keys and encryption of sensitive data.
CloudWatch, GuardDuty, WAF & Shield for monitoring, security, and threat protection.
S3 (encrypted) for logs and secure backups.
Terraform & CloudFormation for Infrastructure as Code (IaC).
CI/CD Pipeline with Jenkins & GitHub Actions for automated builds and deployments.
Security First: Network isolation, TLS/SSL, IAM least-privilege policies, encryption with AWS KMS, and DDoS protection with AWS Shield.
High Availability: Multi-AZ setup with load balancing and auto scaling.
Compliance Ready: Architecture aligned with PCI DSS standards for financial transactions.
Automation: Infrastructure provisioning with Terraform/CloudFormation and CI/CD pipelines for seamless deployments.
Monitoring & Alerts: Centralized logging, CloudWatch metrics, and anomaly detection for real-time insights.
Cost Optimization: Rightsized resources, reserved instances, and auto scaling to minimize costs without affecting performance.
AWS (VPC, ALB, EC2/ECS, RDS, ElastiCache, S3, KMS, Secrets Manager, CloudWatch, WAF, Shield)
Terraform / CloudFormation
Docker, Kubernetes (optional for container workloads)
Jenkins, GitHub Actions (CI/CD)
Linux, Nginx, SSL/TLS
The solution achieved:
99.99% uptime for payment services.
30% faster transaction processing with caching and optimized infrastructure.
20% reduction in infrastructure cost through resource optimization.
A secure, compliant, and scalable platform ready for real-world financial applications.
Designed the AWS architecture from scratch.
Implemented DevOps automation with Terraform and CI/CD pipelines.
Set up robust security practices and monitoring.
Optimized costs while ensuring compliance and reliability.
