SSSameer Shaikhinshopx-microservices.hashnode.dev路Apr 30 路 4 min readSecuring Microservices with JWT and RBAC using Spring BootWhen 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 00
SSSameer Shaikhinchallengesofbackendev.hashnode.dev路Mar 18 路 9 min read馃彞 OPD Queue Management System馃摉 Read the full technical article on the author's website: 馃憠 https://celadon-phoenix-bb10c6.netlify.app/ 鈿狅笍 Disclaimer: For technical research and educational purposes only. All system designs, a00
SSSameer Shaikhinchallengesofbackendev.hashnode.dev路Mar 18 路 5 min read1.0 From Chaos to Clarity: Token-Based OPD Queue ManagementHospitals 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 00
SSSameer Shaikhinchallengesofbackendev.hashnode.dev路Mar 10 路 6 min readOPD Queue Management in Hospitals: The Problem and a Token-Based System OverviewHospitals 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 00
SSSameer Shaikhinchallengesofbackendev.hashnode.dev路Dec 15, 2025 路 3 min readComplete CI/CD Journey: From Code Commit to Live on AWS EC2As 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鈥檒l walk you through my entire CI/CD journey, where I built...00
