Rabinarayan PatraEngineering full-stack
systems that ship.
I'm Rabinarayan Patra (Rabi), an SDE II at Amazon. Java and Spring Boot on the backend, React and Next.js up front, AWS underneath. Before Amazon I spent three years at ThoughtClan building reactive Spring WebFlux services for high-throughput financial systems. These days I write about what I hit in production: keeping data correct, APIs predictable, and services standing up when real traffic arrives.
- 5+
- Years experience
- 700M+
- Daily transactions
- 77
- Articles published
- 10+
- Clients shipped for
02 · Latest writing
Recent Writing
Branch.io Deep Linking and Mobile Attribution Explained
A practical guide to Branch.io deep linking and attribution: how deferred deep links, NativeLink, and privacy-safe matching work, with real mobile app use cases.
How to Build an Interactive MCP App with the MCP Apps SDK
Learn how to build an MCP App (SEP-1865): declare a ui:// resource, register a UI tool, and wire the App SDK so your MCP server renders interactive UI in Claude and ChatGPT.
How to Defer JDBC Connections in Spring Boot 4.1 (Lazy Fetch)
Learn how Spring Boot 4.1 lazy connection fetching defers JDBC connections until the first statement, cutting pool pressure. One property, verified behavior, and limits.
03 · Selected work
Featured Work
Open-source tools I built because I hit the problem myself, then cleaned up enough to share.
sanitizer-lib
A Java library that scrubs untrusted input from a single annotation, so XSS and injection never reach your database. Drops into Spring Boot and JPA without the extra wiring.
05 · Collaborations
Reach developers who build, not just browse.
If your product genuinely helps developers, I'll put it in front of the ones who read, build, and ship, not just scroll past. I only take collaborations I'd be glad to use myself.
## What I offer
- Sponsored blog posts & tutorials
- Product reviews & integrations
- Newsletter sponsorships
- Tool & SDK integrations
audience: developers, engineers
status: open
email: hello@rabinarayanpatra.com