ITMC Digital
Jan 2026 – Present
Software Engineer & Team Lead
Helping build ITMC Digital from the ground up, shaping products, systems, and the technical direction behind them.
India
I'm Biswajit, a software engineer who started with the backend and somehow ended up caring about the whole product. These days I work across backend systems, frontend, infrastructure, and the occasional design rabbit hole.
Internal platforms, side projects and the odd experiment, mostly backend with a frontend I care about.
All of LabsCapricorn Identity Services
Jul 2024 – Dec 2025
Associate Developer
Worked across development and automation for certificate workflows, while leading a small team and taking ownership of key technical work.
2022
Winner, Smart India Hackathon
Grand Finale, on a UIDAI (Aadhaar) problem statement.
Read the story
Big ideas are easy. Making them happen? That's the fun part. I like getting my hands dirty. Got something cooking?
I had the pleasure of working with Biswajit and was consistently impressed by his technical expertise, ownership, and professionalism. He is a strong Backend Engineer with excellent knowledge of Java and Spring Boot, always focused on building reliable and scalable solutions. A great team player with leadership potential, Biswajit would be a valuable addition to any engineering team. I highly recommend him.
· 10 min read
LRU Cache Explained: Design, Java Implementation, and the Mistakes That Trip Up Senior Engineers
A deep, practical walkthrough of how LRU caches actually work, how to build one correctly in Java with a HashMap and a doubly linked list, and the subtle mistakes that cause bugs in interviews and in production.
Read· 4 min read
Stop Designing REST APIs Wrong: 10 Mistakes Developers Keep Making
A practical guide to the 10 REST API design mistakes that create confusion, break clients, and add technical debt, with clear fixes for each.
Read· 9 min read
Cut Your LLM Token Bill in Half - How TOON Rewrites the Rules of JSON
Discover how TOON (Token-Oriented Object Notation) can reduce your LLM API costs by 30-60% through smarter data formatting designed specifically for AI applications.
Read· 16 min read
Encoding, Hashing, Encrypting: The Ultimate Guide to Securing Your Data
Understand the key differences between encoding, hashing, and encryption - including how they work, their use cases, and real-world examples.
Read
I’m hungry.
…for good projects, good problems, and things worth obsessing over.
I’m young, I move fast, I communicate well, and I care a stupid amount about what I build. If something’s worth obsessing over, I don’t care whether it’s 10 a.m. or 2 a.m. Sometimes you just keep going until the damn thing works.
0 → 11 → 100I’m up for both.
Tell me what you’re buildingInternet is my favorite thing.
Somewhere between these connections, the internet happens.
© 2026 Biswajit Rath