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
- 74
- Articles published
- 10+
- Clients shipped for
02 · Latest writing
Recent Writing
How to Use Post-Quantum TLS in Java 27 (JEP 527)
Learn how to use post-quantum TLS in Java 27 with JEP 527. Enable the X25519MLKEM768 hybrid key exchange, verify the handshake, and tune jdk.tls.namedGroups.
How to Block SSRF in Spring Boot 4.1 with InetAddressFilter
Learn how to block SSRF in Spring Boot 4.1 with the new InetAddressFilter on RestClient and WebClient, covering cloud metadata, internal IPs, and tests.
How to Use the React Activity Component for Instant Navigation
The React Activity component (React 19.2) keeps hidden UI mounted so navigation feels instant. Learn visible and hidden modes, prerendering, and state saving.
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