About

About

Hi, I’m Rahul Chandna

Design, Develop, Write Tests, Refactor, Repeat.

I work end to end — from Solution Design Forum through change analysis, design, development, and DevOps (understand it, build it, run it) — with deep experience in payments and multicurrency systems architecture for financial services.

I have in-depth experience in technical analysis, refactoring legacy code, test-driven development, and making architectural changes using infrastructure as code to meet target architecture goals.

I love sharing what I’ve learned — I’ve run numerous internal training and knowledge-sharing sessions, built a structured training programme for engineering grads, and share what I’ve picked up over the years in the field on my blog and YouTube channel.

Always keen to connect with people working on interesting problems in fintech, payments, or engineering education.

This site

The posts here cover Java, Linux, Oracle, DevOps, security, and whatever else I was figuring out at the time. The earliest ones go back to 2010, though I only started writing them up in 2020 — so consider them reconstructed field notes.

Topics still on the backlog: Kubernetes and Docker in production, Jenkins and GitLab pipeline patterns, JWT + Kerberos authentication flows, NGINX and Apache as reverse proxies, Oracle PL/SQL edge cases, Java JVM internals and JIT behaviour, load testing with JMeter, and Citrix NetScaler Nitro API for HA deployments. I’ll get to them.

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