Open to work
I build mission-critical backend systems and care about clean architecture, scalability, and reliability.
about
CSE graduate from BUET with a few years of shipping production software — backend services with authentication, caching, and clean architecture, plus full-stack platforms across exam systems, fintech wallets, and EdTech.
I care about the unglamorous parts: query plans, idempotent workflows, retry policies, and the rare bug that only shows up at 3am. I like teams that ship.
experience
Where I've worked, what I built, and the stack I shipped it with.
NestGO
projects
A mix of shipped products, infrastructure, and side projects across backend, AI, and full-stack.
Java · Spring Boot · High Concurrency
Online STEM exam platform built with Java and Spring Boot, supporting handwritten answer submissions, scheduled exams, live sessions, and automatic result publication. It runs on stateless REST APIs with Redis rate limiting and load balancing, so it stays stable even when thousands of students sit an exam at the same time.
Java · Spring Boot · Workflow Engine
Distributed workflow engine written in Java and Spring Boot for running asynchronous, dependency-aware backend jobs. It handles priority queues, DAG-based execution, scheduled jobs, retries with exponential backoff, dead-letter queues, and backpressure, so high-throughput pipelines keep working even when some jobs fail.
Spring Boot Backend Template
A Spring Boot backend I built as a clean reference template, with a layered architecture, OOP and a few common design patterns, DTO mapping, Swagger, PostgreSQL with Flyway migrations, and Docker. It has unit and integration tests covering about 90% of the code.
Android IME · Federated Learning
An Android keyboard (IME) in Kotlin that predicts Banglish text right on the device. Inference goes through TFLite at roughly 4.55ms, and the model is trained with a federated-learning setup (FastAPI backend, a tuned LSTM, INT8 quantization) that keeps user data on the phone.
skills
achievements