1,000+ users
Psycloud, at Bengal Byte
2025 – 2026
Principal architect of a clinical platform on Next.js, FastAPI, PostgreSQL and Redis: practitioner dashboard, assessment engine, and a backend built to EU data-protection rules.
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Abrar Mahir Esam
Full-stack software engineer. I architect production systems end to end, from data model to mobile client.
Where the line has run
300 concurrent users
Prime Minister's Office, Bangladesh
2024 – 2026
Architected a personnel and duty-management platform: Spring Boot on PostgreSQL and Redis, with React and Flutter clients.
SoftCar
2025
A car rental and fleet insurance platform. At Nyntax I built its insurance, booking and admin features in React and Express.
SpendSplit
2026
One bank balance split into Available and Savings, fully offline. Every figure is derived from the entries and never stored.
Nudge
2026
A local-first task manager with one promise: important tasks stay visible and keep reminding you until they are handled.
Astryn
2026
A local-first desktop command center with a Rust core. Credentials stay in the OS keychain, and the webview never sees a token.
Seven lines, one network
ML & Research
Published research, thesis work and running LLMs on consumer hardware.
Python, TensorFlow, YOLOv8, llama.cpp, Ollama, MCP servers
4 stops
Flutter
Cross-platform mobile apps that keep working offline.
Flutter, Dart, Riverpod, Drift, SQLite, Kotlin
4 stops
Java & Spring
Backends built to carry production load and keep data safe.
Java 21, Spring Boot, Spring Security, Flyway, PostgreSQL, Redis
3 stops
Career
The jobs, in order, from trainee to principal architect.
System design, CI/CD, TDD, JWT / OAuth2, RBAC, Docker
6 stops
TypeScript & React
Web clients and services, from dashboards to real-time tools.
TypeScript, React, Next.js, Node.js, FastAPI, PostgreSQL, MongoDB
13 stops
Rust
Native tools and desktop software that start instantly.
Rust, Tauri 2, async, GraphQL, SQLite
2 stops
Algorithms
Competitive programming since 2022, and three batches of students mentored.
C++, Data structures, Graph theory, Contests
4 stops