Featured Project
Smartpay
Cloud-based payment processing system with automated reconciliation and real-time monitoring.
Problem
Traditional payment systems require manual reconciliation, lack real-time visibility, and struggle with scale during peak loads.
Businesses need a reliable, automated payment processing system that can handle high transaction volumes while maintaining security and compliance.
Architecture
Infrastructure Layer
Built on AWS using serverless architecture. Lambda functions handle payment processing, API Gateway manages endpoints, and DynamoDB stores transaction data with automatic scaling.
Processing Pipeline
Event-driven architecture using SQS for reliable message queuing. SNS notifications for real-time alerts. CloudWatch for monitoring and automated responses to anomalies.
Security & Compliance
IAM roles with least privilege access. Encryption at rest and in transit. CloudTrail for audit logging. Secrets Manager for credential management.
Tech Stack
Cloud & Infrastructure
- • AWS Lambda (serverless compute)
- • API Gateway (REST endpoints)
- • DynamoDB (NoSQL database)
- • S3 (object storage)
- • CloudWatch (monitoring)
- • Terraform (IaC)
Application & Tools
- • Python (Lambda functions)
- • Node.js (API layer)
- • SQS & SNS (messaging)
- • IAM (access control)
- • Secrets Manager
- • GitHub Actions (CI/CD)
What I Built
Payment Processing Engine
Serverless functions for transaction validation, processing, and reconciliation with automatic retry logic and dead letter queues.
Real-time Monitoring Dashboard
CloudWatch dashboards with custom metrics, alarms for transaction failures, and automated incident response workflows.
Infrastructure as Code
Complete Terraform configuration for reproducible deployments across environments with state management and drift detection.
CI/CD Pipeline
GitHub Actions workflows for automated testing, security scanning, and deployment with rollback capabilities.
What I Learned
Serverless Architecture Patterns
How to design event-driven systems that scale automatically. Understanding cold starts, concurrency limits, and cost optimization strategies.
Observability & Debugging
Building comprehensive logging and tracing in distributed systems. Using CloudWatch Insights for debugging production issues.
Security Best Practices
Implementing least privilege access, encryption strategies, and compliance requirements. Managing secrets and credentials securely.
Infrastructure as Code
Writing maintainable Terraform modules, managing state, and handling infrastructure drift. Automated testing for infrastructure changes.
Screenshots
Dashboard View
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Architecture Diagram
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Monitoring View
Coming Soon
API Response
Coming Soon
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