Backend Software Engineer
Hi, I’m Vijay — I build the stuff behind the stuff you use.
I’m a software engineer who enjoys figuring out what happens behind the scenes and turning messy problems into simple, reliable solutions. I spend most of my time building products and learning how things work.
This is where I share what I’ve built, what I’ve learned, and a few things I found interesting along the way.
5+ yrs backend
Open-source maintainer
Technical writer
Selected Work
Projects I’ve shipped and open-sourced
More projects
Java · Spring Boot · Instagram API · Inspired by SharkTank India
WYLD-Algorithm — Turning Posts Into Cashback Decisions
A backend service that checks Instagram posts against campaign rules and decides whether a post qualifies for cashback.
View source
Next.js · TypeScript · Supabase · Twilio · Inspired by SharkTank India
Scan2Call — Private Calling, Without Sharing Numbers
A privacy-first calling system that lets someone connect with you by scanning a QR code — without exposing either person's phone number.
View source
Skills & Expertise
The tools and ideas I use to turn problems into working systems.
Backend Engineering
Java, Kotlin, and Spring Boot — building clean, reliable services that are easy to evolve.
Microservices
Breaking complex systems into focused services that can grow and change independently.
System Design
Breaking complex problems into simple, reliable pieces that work well together.
Cloud Messaging
AWS, Kafka, and Redis — connecting services and keeping data moving where it needs to go.
Databases
Designing schemas, working with SQL, and finding ways to make data-heavy operations faster.
Quality & Reliability
Testing and monitoring — because “it works on my machine” isn't good enough.
Recent Writing
Notes on engineering, in public
More posts
Backend
6 min read
Why idempotency keys aren't optional once money is involved, and how I wire them into Spring Boot services without leaking complexity into business logic.
Open Source
8 min read
A year of issues, pull requests, and 2am production bugs taught me more about API design than any course could.
Open to backend roles, collaborations, and good conversations.
Get in touch