Md. MinhajulHaque

Backed by a strong computer science foundation and a problem-solving mindset, I craft scalable solutions using modern frameworks, AI integration, and system-driven design. I focus on understanding problems at their core, optimizing performance, and building clean, user-centric products that scale reliably.

3000+
Users Served
20+
Projects Completed
1000+
Problems Solved
Md. Minhajul Haque

Md. Minhajul Haque

Full Stack Engineer & AI/ML Specialist

Sylhet, Bangladesh
About Me

Building the Future with Code

Final-year CSE student with hands-on experience in production systems, AI integration, and solving complex technical challenges.

Professional Focus

I prioritize database design, efficient code, practical problem-solving, and effective teamwork. My approach combines technical excellence with real-world impact.

Built production systems serving 3K+ users
1000+ algorithmic problems solved
AI/ML integration specialist
100% success rate in live events
End-to-end system architecture
1st Runner-Up - GreenCon Hackathon 2025

Education

Shahjalal University of Science and Technology

B.Sc in Computer Science and Engineering

Sylhet, Bangladesh
2021 - 2026CGPA: 3.64

Focus Areas

Full-Stack DevelopmentAI/ML IntegrationSystem DesignDatabase OptimizationReal-time Systems

Technical Skills

Each colony represents a domain of expertise, working together in perfect harmony

Backend
Frontend
Database
AI/ML
Mobile
DevOps
Node.js
Express
FastAPI
REST API
Microservices
React
Next.js
TypeScript
Tailwind
Socket.IO
PostgreSQL
MySQL
MongoDB
Redis
Prisma
LangChain
RAG
Qdrant
Gemini API
TensorFlow
Docker
Git
AWS
Jira
n8n
Kotlin
Jetpack
Firebase
Flutter

Learning Journey

My progression through semesters, projects, and achievements

1st & 2nd Semester2021-2022

Foundation: Computer Science Fundamentals

  • Explored CS basics: Discrete Math, C, C++ programming
  • Mastered problem solving from basic to complex
  • Learned data structures: Arrays, Stacks, Queues, Trees, Graphs
  • Advanced DS: Deque, Segment Tree, Fenwick Tree, Trie
  • Participated in online/offline programming contests
  • Practiced on: Codeforces, Vjudge, LightOJ, CodeChef
3rd & 4th Semester2022-2023

Algorithms & Mobile Development Journey

  • Continued competitive programming journey
  • Deep dive into algorithms: DP, Greedy, Graph algorithms
  • Mastered OOP concepts and design patterns
  • Started Android development with Kotlin
  • Built Doctors Appointment App - First major project
  • Transitioned to Flutter for cross-platform development
4th Semester2023

First Large-Scale Mobile Application

  • Doctors Appointment App - End-to-end development
  • Kotlin & Jetpack Compose mastery
  • Firebase authentication & real-time database
  • MongoDB integration for backend
  • Patient & doctor profile management
5th & 6th Semester2023-2024

Core CSE Courses & Full-Stack Development

  • Core courses: Operating Systems, Database, Networking
  • Continued problem solving and development
  • E-Commerce App - Amazon-like full-stack project
  • Multiplayer TicTacToe - Socket.IO real-time learning
  • REST API design & best practices
  • Cross-platform development expertise
6th Semester2024

Microservices Architecture & AI Integration

  • EduVerse - AI learning platform with 5 microservices
  • ~100K lines of code, 150+ API endpoints
  • Stripe payment gateway integration
  • Real-time features with Socket.IO
  • AI-powered content generation (Gemini API)
  • Research Assistant RAG application
7th Semester2024-2025

Production Systems & AI at Scale

  • TickEasy - Event ticketing serving 2-3K+ users
  • IKSS Blood Bot - Live automation with n8n
  • Eventure - AI event management orchestrator
  • Research on LLMs for Islamic Q&A (ICCIT 2025)
  • 100% success rate on production events
Hackathon 2025June 2025

🏆 1st Runner Up - GreenCon Hackathon

  • Crisis Communication App with mesh networking
  • Offline messaging without internet (Bridgefy SDK)
  • SOS alerts & real-time location sharing
  • Cross-platform Flutter app (Android & iOS)
  • Inspired by Hong Kong protests & Iraq crisis
7th & 8th Semester2024-2025

Machine Learning & LeetCode Mastery

  • Deep dive into Machine Learning & AI/ML
  • LeetCode problem solving (Medium to Hard)
  • Advanced algorithm implementations
  • Production system development
  • Focus on scalability and performance
8th Semester2025

Community Impact & Advanced Development

  • IKSS Website - Serving 1000+ students
  • 20+ volunteers, 7+ partner organizations
  • Advanced ML implementations with TensorFlow
  • Continued LeetCode & system design practice
  • Focus on scalable production systems

Featured Projects

From production systems to learning experiments

TickEasy

TickEasy

Event Ticketing & Management Platform

7th Semester

A comprehensive event ticketing and management platform designed to handle real-world events with enterprise-level performance. Successfully processed 2-3K+ attendees with 100% success rate across multiple live events.

Key Features:

  • Instant ticket booking without registration
  • Real-time QR verification via Flutter app (300-400/hour)
  • JWT-based authentication with BCrypt hashing
Node.jsExpressNext.jsTypeScriptPostgreSQL+3
2-3K+ users, 100% success rate
EduVerse

EduVerse

AI-Enhanced Learning Platform

6th Semester

A modern, microservices-based education platform that combines AI technologies with traditional learning methods. Features 5 microservices, 150+ API endpoints, and AI-powered content generation.

Key Features:

  • AI-Powered Content Generation (notes, quizzes, Q&A)
  • Microservice architecture with 5 services
  • 50+ REST APIs with JWT auth
Node.jsExpressNext.jsMySQLPrisma+4
~100K lines of code, 150+ APIs
Research Assistant RAG App

Research Assistant RAG App

AI-Powered Research Tool

7th Semester

A RAG (Retrieval-Augmented Generation) application for research assistance with diverse embedding and chunking strategies for optimal document parsing.

Key Features:

  • Diverse embedding strategies
  • Optimized chunking for documents
  • Vector database integration
FastAPIRAGQdrantLangChainPostgreSQL
Research productivity tool
Eventure

Eventure

Event Handling AI Tools Orchestrator

Hackathon

An AI-powered event management tool orchestrator that helps streamline event planning and execution with intelligent automation.

Key Features:

  • AI-powered event tools
  • Event planning automation
  • Intelligent recommendations
Next.jsAI/MLTypeScript
Live AI orchestrator
Crisis Communication App
Winner

Crisis Communication App

🏆 1st Runner Up @ GreenCon Hackathon 2025

Hackathon

A Flutter-based mobile application for crisis communication using mesh networking technology. Enables reliable communication when traditional infrastructure fails, inspired by Hong Kong protests and Iraq crisis situations.

Key Features:

  • Mesh networking without internet (Bluetooth + WiFi)
  • SOS alerts & emergency broadcasting
  • Real-time location sharing with maps
FlutterBridgefy SDKMesh NetworkingSQLiteProvider
1st Runner Up - GreenCon 2025
IKSS Blood Bot

IKSS Blood Bot

Blood Donation Automation System

7th Semester

A Telegram bot that automates blood donation requests and donor management for the IKSS community. Built using n8n workflow automation and JavaScript for real-time emergency responses.

Key Features:

  • Blood request handling via inline keyboard
  • Emergency broadcast with available donors
  • Donor registration & management
n8nJavaScriptTelegram Bot APIGoogle SheetsDocker
Live automation for university community
IKSS Website

IKSS Website

Islamic Knowledge Seekers Platform

8th Semester

A comprehensive website for Islamic Knowledge Seekers of SUST (IKSS), a student-led dawah organization at Shahjalal University. The platform serves as a central hub for spreading Islamic knowledge, managing events, and building community among Muslim students.

Key Features:

  • Dynamic home page with daily Quranic verses
  • Event management system with filtering
  • Islamic resources library (videos, articles, PDFs)
ReactTypeScriptViteTailwind CSSLucide Icons+1
1000+ students reached, multiple events
Full-Stack E-Commerce App

Full-Stack E-Commerce App

Amazon-like Learning Project

5th Semester

A complete e-commerce application replicating Amazon core features. Built to learn best practices in REST API design, error handling, and frontend modularity.

Key Features:

  • User authentication with JWT
  • Product catalog with search & filters
  • Shopping cart with real-time updates
FlutterNode.jsExpressMongoDBJWT
Learning project - Best practices
Doctors Appointment App

Doctors Appointment App

First Large-Scale Mobile Application

4th Semester

End-to-end Android application for doctors and patients to manage appointments and health records. First major mobile project built independently from scratch.

Key Features:

  • Doctor & patient profiles
  • Appointment scheduling & management
  • Personal health records
KotlinJetpack ComposeNode.jsFirebaseMongoDB+1
First large-scale mobile project
Multiplayer TicTacToe

Multiplayer TicTacToe

Real-time Communication Learning

5th Semester

A completely responsive online multiplayer TicTacToe game that works on Android, iOS, Web, and Desktop. Built to learn real-time communication with Socket.IO.

Key Features:

  • Phone number login with OTP
  • Real-time multiplayer gameplay
  • Create/join game rooms
FlutterSocket.IONode.jsMongoDBProvider
Socket.IO learning project

Deeper Understanding of JavaScript

Beyond syntax — understanding how JavaScript works under the hood

Execution Context & Call Stack

Deep understanding of how JS executes code - creation phase, execution phase, scope chain, and variable hoisting

💡 Optimized nested function calls in TickEasy for 300-400 QR scans/hour

Event Loop & Asynchronous JS

Master of the event loop, microtasks, macrotasks, and non-blocking code execution

💡 Real-time Socket.IO implementations in EduVerse & TicTacToe

Debouncing & Throttling

Performance optimization techniques to control function execution frequency

💡 Implemented search debouncing and scroll throttling across web apps

Closures & Scope

Leveraging closures for data privacy, function factories, and module patterns

💡 Built reusable middleware factories with closure-based state management

Prototypes & Inheritance

Understanding prototypal inheritance, prototype chain, and object creation patterns

💡 Created custom data structures and OOP patterns in backend services

LRU Cache Implementation

Built efficient caching mechanisms with Least Recently Used eviction policy

💡 Implemented API response caching to reduce database queries by 60%

Task Scheduler & Queues

Custom task scheduling with priority queues and job processing for background operations

💡 Built job queue system for async email notifications and data processing

Technique

LRU Cache + Query Optimization

Issue

API Response Time: 850 ms

Action

Applied lru cache + query optimization to optimize performance

Result
60% faster
Technique

Debouncing Implementation

Issue

Search Performance: API call on every keystroke

Action

Applied debouncing implementation to optimize performance

Result
90% fewer calls
Technique

Throttling Pattern

Issue

Scroll Handler: Fired 1000+ times/scroll

Action

Applied throttling pattern to optimize performance

Result
99% reduction

Core Focus Areas

  • Reasoning over memorization — understanding the "why" behind language features
  • Performance-first mindset — writing code that scales with user load
  • Async mastery — leveraging event loop for non-blocking operations
  • Memory awareness — managing resources and avoiding common pitfalls
  • Pattern recognition — building reusable solutions with closures and HOFs

Applied in Production

  • Built custom middleware with closure-based state management
  • Optimized event handlers for high-frequency user interactions
  • Implemented efficient data structures (LRU Cache, Custom Queues)
  • Debugged complex async race conditions in production systems
  • Reduced memory leaks through proper cleanup and GC understanding

Research & Thesis

Exploring the intersection of AI/ML with real-world applications

Evaluating and Enhancing LLMs for Islamic Question Answering

ICCIT 2025

This research focuses on evaluating existing Large Language Models for Islamic question-answering tasks and enhancing their performance through various techniques including prompt engineering, fine-tuning, and RAG (Retrieval-Augmented Generation) pipelines.

Prompt Engineering

Designing effective prompts to improve LLM accuracy on Islamic texts

Fine-tuning Mistral-7B

Domain-specific fine-tuning for better Islamic knowledge representation

RAG Pipeline

Implementing retrieval-augmented generation with authentic Islamic sources

LLM EvaluationMistral-7BRAGPrompt EngineeringIslamic NLPFine-tuning

NarrativeSense: Benchmarking Large Language Models for Socio-Political Identity Framing in Bengali News Articles

Ongoing

A computational benchmark to detect identity-based framing in Bengali news using expert-annotated data and state-of-the-art LLMs (GPT-4o, Gemini, Llama 3), revealing how narratives engineer polarization in low-resource languages.

LLM EvaluationBengali NLPSocio-Political FramingNews Analysis

Detection and Refutation of Misleading Historical Narratives

Interest

Developing NLP-based models to detect biased content and generate refutations grounded in authentic Islamic sources.

Misinformation DetectionNLPFact-Checking

Achievements & Certifications

Milestones and continuous learning journey

1st Runner Up - GreenCon Hackathon

Built crisis communication app with mesh networking

Production Systems

3K+ users across web and mobile platforms

1000+ Problems Solved

Codeforces, Vjudge, Leetcode, etc.

Production Impact

2-3K+
Total Users Served
100%
Event Success Rate
200+
APIs Developed
5+
Live Applications

Professional Certifications

Supervised ML

Regression & Classification

DeepLearning.AI

Andrew Ng

Issued Oct 2025

Docker Training

Absolute Beginner

KodeKloud

Issued Dec 2025

AWS Certified

Cloud Foundations

Amazon Web Services

Issued Jan 2026

Finetuning LLM

Basic

DeepLearning.AI

Issued Aug 2025

DevOps Workshop

Absolute Beginners

Ostad

Issued Aug 2025

Greentech Apps Foundation Logo

Greencon Hackathon 2025

An exhilarating experience participating in the Greencon Hackathon, organized by Greentech Apps Foundation. Focused on reflecting our commitment to developing practical, impactful solutions for Muslim communities in need, especially during crises.

3 – 4 July 2025
MEC

1st Runner Up 🏆

Team: NoSignalLab

Developed a crisis communication and utility app using mesh networking technology. Our solution enables device-to-device communication without internet, providing essential emergency tools for communities in disaster situations and areas with limited connectivity.

Key Features

Communication Core
  • 🌐 Mesh Networking via Bluetooth & WiFi
  • 📢 Broadcasting to all participants
  • 💬 Individual & Group Chat
  • 📍 Real-time Location Sharing
Emergency Tools
  • 🆘 SOS Alert System
  • 🔦 Built-in Flashlight
  • 🚨 Emergency Notifications
  • 👤 Role-based User Management

🔐 Encrypted Communication

🔋 Super Power Saving Mode

📱 Cross-Platform (Android & iOS)

🌐 No Infrastructure Dependency

Technologies Used

FlutterBridgefy SDKSQLiteFlutter MapGeolocator

Roman Raihan

Team Lead

LinkedIn

Md. Minhajul Haque

Full Stack Development & Mesh Network Integration

LinkedIn

Md Abdullah Al Mahadi Apurbo

Full Stack Development

LinkedIn
Award Ceremony

Award Ceremony

Project Presentation

Project Presentation

Mentoring & Supervision

Mentoring & Supervision

Team Collaboration

Team Collaboration

Hackathon Participants

Hackathon Participants

Let's Connect

GitHub

@minhaj47

Phone

+8801909484884

© 2026 Md. Minhajul Haque. Built with Next.js & Tailwind CSS.