Emrul Kayes

____________Hi! I'm Kayes, a backend-developer from Dhaka, Bangladesh 👋

I am a Software Engineer focused on backend development, based in Dhaka, Bangladesh. I have 3.5+ years of experience building scalable systems, real-time applications, and high-performance APIs using NestJS, Node.js, and TypeScript.

I currently work at Intelligent Resources International (IRI) Ltd, where I build and maintain a resource tracking platform that handles 9.5K+ requests every day. Some things I have done there: rebuilt the sustainability footprint calculation engine from scratch — cutting response time from 3 seconds down to 600ms (an 80% improvement); set up a full monitoring system using Prometheus, Grafana, and Loki to track errors, payments, and system health; designed PostgreSQL database replication across multiple servers for better performance and reliability; and built a payment system supporting EBL (CyberSource), Stripe, and SSLCommerz. The footprint modules I developed are now used by 150+ factories across Bangladesh, Pakistan, and India.

Before that, I worked at Introbangla Limited, where I helped build a real-time ride-sharing platform called Carbangla. I implemented real-time push notifications using Redis and WebSockets, set up Nginx load balancing, and built a serverless media pipeline on AWS Lambda that could handle video, audio (up to 5GB), and large Excel datasets automatically. At Solutya Pvt. Ltd., I developed a full travel agency management system with live chat, payment gateways, and role-based access control.

Outside of work, I built a Chrome extension called Daily Quran that shows a random Quran verse every day with translation. I also built SearchQ — a scalable search engine using NestJS and Elasticsearch, designed to handle full-text search efficiently.

I hold a Bachelor's degree in Computer Science and Engineering from Shanto-Mariam University of Creative Technology. I was a finalist in the Code Samurai and KYAU National Hackathons, and recently completed the B-TopSE Basic Series Training Program by JICA-BCC-BASIS (2026).