Building digital
products with purpose.
I'm Rabi — I build full-stack products end to end: Java and Spring Boot on the server, React and Next.js on the client.
- 5+
- Years experience
- 30+
- Projects shipped
- 28+
- Articles published
- 10+
- Happy clients
02 — Latest writing
Recent Writing
You Can Now Pay by Just Saying It. Here Is What Razorpay and NPCI Just Pulled Off
Razorpay and NPCI just launched Agentic Payments on Claude, letting AI complete UPI transactions on your behalf. Here is a breakdown of how it works, why India is the right place for it, and what it means for the future of commerce.
10 Essential Java Libraries to Reduce Boilerplate Code (Beyond Lombok)
Stop writing getters, setters, and mappers. Discover the essential Java libraries like MapStruct, Records, Retrofit, and jOOQ that will cut your codebase in half.
Fixing LazyInitializationException in Spring Boot: The Right Way
The #1 error in JPA explained. Why open-in-view is bad, and how to use JOIN FETCH, @EntityGraph, and DTOs to fix it permanently.
03 — Selected work
Featured Work
Open source projects and tools built to solve real-world problems.
sanitizer-lib
Enterprise-grade input sanitization framework for Java with seamless Spring Boot and JPA integration. Enforce data integrity with declarative annotations, preventing XSS and other injection attacks at the source.
04 — Freelance
Turn your idea into a
shipping product.
I specialize in building MVP web applications, internal tools, and high-performance products. Working solo means no account manager relay — just direct engineering.
Rapid Development
Get your MVP in front of users in weeks, not months.
Full-Stack Expertise
From database design to responsive frontend UI — end to end.
Direct Communication
You work directly with the engineer — you get faster answers and faster builds.
Let's talk details
Fill this out and I'll get back to you within 24 hours.
05 — Collaborations
Reach developers who build, not just browse.
Looking to showcase your product to an audience of working developers and engineers? I collaborate with brands that offer genuine value to the tech community.
## What I offer
- Sponsored blog posts & tutorials
- Product reviews & integrations
- Newsletter sponsorships
- Tool & SDK integrations
audience: developers, engineers
status: open
email: hello@rabinarayanpatra.com