At Kitalon Labs, I contributed backend design for a production wallet and transfer system, applying the double-entry ledger model from my Kori project. I also brought over row-level locking and added domain-level safeguards and idempotency checks to protect transfers.
At Techmak Technology, I owned full-stack development of DhakaVoice, a civic engagement platform. I designed its relational schema, built REST API endpoints with NestJS and PostgreSQL, and developed Socket.io features for live notifications, status updates, and comment threads.
I’m actively developing Kori, an ACID-compliant financial backend, alongside Zenith, an agile project management platform, and Blip, a real-time chat application. Across these projects, I’ve worked on transaction safety, concurrent access, real-time systems, and secure authentication.
