Welcome to my GitHub! I’m a passionate Full Stack Engineer and DevOps professional, building scalable, production-ready applications and cloud-native solutions. My expertise spans React, TypeScript, Node.js, Kubernetes, Docker, AWS, CI/CD, and microservices architecture.
I focus on solving real-world problems with clean code, scalable design, and cost-efficient cloud solutions. From video streaming platforms to containerized microservices, I enjoy tackling complex technical challenges and building systems that scale.
| Judge | Count | Profile Links |
|---|---|---|
| Codeforces | 250+ |  |
| LeetCode | 100+ |  |
| CodeChef | 150+ |  |
| HackerRank | 100 |  |
| Name | Description | Project Link |
|---|---|---|
| NodeFleet | AWS K3s autoscaler reducing costs by 40-50% via Lambda, Prometheus metrics, and intelligent EC2 scaling with spot instances, Multi-AZ support, and predictive scaling. | Github |
| Askly | An intelligent open source RAG engine powered by Google Gemini - chat with your PDFs, stream AI answers word-by-word via SSE, and fall back to live web search automatically. | Github |
| Jatra | Fault-tolerant train ticketing system solving Bangladesh Railway's Eid traffic chaos. Built with microservices, K8s, Redis & OpenTelemetry. | Github |
| VisionSync | Scalable cloud-native video streaming platform built on AWS. Features adaptive DASH/HLS streaming, real-time processing with ECS Fargate (70% Spot), MongoDB replica set, Redis caching, Socket.IO updates, and full IaC automation with Pulumi & Ansible. Cost-optimized multi-AZ architecture with CloudFront CDN. | Github |
| SimplyDone | SimplyDone is a scalable To-Do app built with React.js (frontend) and Node.js (backend). Both are containerized with Docker and deployed on AWS EC2 instances with an Application Load Balancer (ALB) for high availability and fault tolerance. Pulumi is used as IaC | Github |
| R_Queue | A distributed job queue system using Redis, designed to manage tasks across multiple worker nodes in a cloud environment. It supports job prioritization, failure handling, retries, result storage, and monitoring. | Github |
