Jawahar Selvaraj
Software Engineer
Writing about distributed systems, cloud infrastructure, Go, and the engineering ideas that make software reliable.
Recent Articles
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AWS AWS RDS Upgrades - Every enginner's nightmare
Upgrading a database is the stuff that nightmares are made of, especially when it comes to Amazon Web Services (AWS) Relational Database Service (RDS). It's like trying to change a tire on a car that's driving down the highway at 100 miles per hour!
Go Golang - Inheritance vs Composition
Have you ever worked with a system, where it often end up in an unexpected state?
Security Hashicorp Vault Associate Certification
I successfully completed the requirements to be recognized as a Hashicorp Vault Associate.
Recent Videos
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Symmetric vs Asymmetric Encryption in a nutshell. 🔒
Encryption is everywhere — but not all encryption works the same way. In this video, we break down symmetric vs asymmet
What is Checksum: The Easiest Explanation You’ll Ever See 👌
Checksums are everywhere — in downloads, network packets, hard drives, APIs, and distributed systems. But most developer
CQRS explained in a Nutshell – Simple Guide for Developers
In this video, we break down **CQRS (Command Query Responsibility Segregation)** — a powerful architectural pattern that