Hello, I'm
Backend developer and AI researcher from Dhaka, Bangladesh. I build secure Spring Boot APIs, RAG-based AI products and privacy-preserving federated learning systems, and I'm the founder of CouAI.
I started CouAI, my own company, to turn my backend and AI research work into real products. I lead its vision, product direction and engineering.
Where I've built and led.
Backend systems, AI products and full-stack apps.
Digital wallet API with account creation, virtual wallets and P2P transfers. Stateless JWT authentication, role-based authorization and ACID-safe transactions with @Transactional, in an N-Tier architecture with centralized exception handling.
GitHubRAG pipeline with Pinecone vector search and a multi-model layer (Llama 3.1 + Gemini) for accurate legal answers. Multilingual React and Tailwind interface, deployed on Render and Vercel.
Live demoGitHubSocial platform with a NestJS, TypeORM and PostgreSQL backend (REST APIs, JWT auth, Swagger docs) and a Next.js and TypeScript frontend for post feeds and profiles.
FrontendBackendAuto-switches the device sound profile using OpenStreetMap geofencing and Retrofit-based API integration. Built during my Duke of Edinburgh Gold Award skill period.
GitHubFederated learning, healthcare prediction and genomic AI.
Federated learning framework for adult content detection under Non-IID data distributions.
Forward temporally validated, calibration-aware prediction with fairness and explainability in a population-based cohort. Dhaka International University.
Co-authored a lightweight ResNet-based framework for genomic embeddings. CUET, Chattogram.
Backend, AI or a project for CouAI. Send me a message.