@sameersh

Securing Microservices with JWT and RBAC using Spring Boot

Apr 30 · 4 min read · When building microservices, one of the biggest challenges is handling authentication and authorization efficiently without slowing down the system. Calling the user database for every request is not

🏥 OPD Queue Management System

Mar 18 · 9 min read · 📖 Read the full technical article on the author's website: 👉 https://celadon-phoenix-bb10c6.netlify.app/ ⚠️ Disclaimer: For technical research and educational purposes only. All system designs, a

1.0 From Chaos to Clarity: Token-Based OPD Queue Management

Mar 18 · 5 min read · Hospitals running OPD services often handle a high volume of patients, especially during peak hours. When queues are managed manually (registers, calling names, ad-hoc reordering), it quickly becomes

OPD Queue Management in Hospitals: The Problem and a Token-Based System Overview

Mar 10 · 6 min read · Hospitals running OPD services often handle a high volume of patients, especially during peak hours. When queues are managed manually (registers, calling names, ad-hoc reordering), it quickly becomes

Complete CI/CD Journey: From Code Commit to Live on AWS EC2

Dec 15, 2025 · 3 min read · As a backend developer, I always believed that writing code is only half the job. The real challenge begins when you need to deploy, automate, scale, and maintain it reliably. In this blog, I’ll walk you through my entire CI/CD journey, where I built...