umang goelThings to know about UPI transactions!UPI ID stands for Unified Payment Interface Identity. UPI is the form of payment devised by NPCI (National Payments Corporation of India)…Jul 16, 2023Jul 16, 2023
umang goelHow to design multi-region & multiplayer online game!Problem Statement:Oct 25, 20221Oct 25, 20221
umang goelSystem Design: Gmail (How do Emails flow across Internet)!Emails(Electronic Mails) are the most common way of communication which is fast, cheap and easily accessible. In this article we will…May 23, 2022May 23, 2022
umang goelThings to Know about Authentication/Authorization protocols!Securing the servers and data is one of the biggest challenge in IT industry today. There are lot of open standard protocols which are used…May 16, 2022May 16, 2022
umang goelThings to know about Digital Payments! (Part 1: Basics)Since last few few years we have been listening about the fintech evolution a lot. Fintech has been there since a long time but people…May 11, 20221May 11, 20221
umang goelHow to build video upload/stream service like Youtube!Problem Statement:Jan 9, 20223Jan 9, 20223
umang goelSystem Design: Useful concepts for building services at scale!-Part 2In this previous article we had discussed on some of the important concepts needed for building services at scale. If you haven’t read it…Dec 15, 2021Dec 15, 2021
umang goelObservability : Logs vs Traces vs Metrics!Software systems have become the integral part of any organisation. As the organisation evolve the software systems also evolve and become…Dec 9, 20216Dec 9, 20216