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👋 Welcome to My Portfolio

Hi, I'm
Sabbir Hossain

🏆 Competitive Programmer|💻 Full-Stack Developer|🤖 ML Researcher

Distinguished Graduate from United International University

Combining strong academic foundations with hands-on expertise in algorithms, full-stack development, and AI/ML research to build innovative, scalable solutions.

🎯2500+ Problems Solved
Codeforces Specialist
🏅2× ICPC Dhaka Regional Participant

Passionate about problem-solving and exploring innovative solutions. Love discussing Technology, History, Psychology, Neuroscience, and Nature.

About Me

Software Engineer | Competitive Programmer | AI/ML Researcher

I'm a fast and passionate learner with a Computer Science degree from United International University. My journey combines strong academic foundations in core CS concepts, DBMS, algorithms, and data structures with hands-on expertise in full-stack development, AI/ML research, and competitive programming.

As a dedicated competitive programmer, I've solved 2500+ algorithmic problems across multiple platforms, achieving Specialist rating on Codeforces (1578) and 4-Star on CodeChef (1854). I've competed in 2× ICPC Dhaka Regional and secured top positions in multiple IUPCs, demonstrating my problem-solving capabilities and algorithmic thinking.

In research, I developed a Bangladeshi Dialect Speech Recognition system using transformer-based architectures and LoRA fine-tuning for my undergraduate thesis. My published conference paper on rice grain classification showcases my expertise in deep learning and computer vision, applying cutting-edge ML techniques to real-world problems.

My project portfolio spans diverse domains: from Nostalgia (social media for elderly with ML recommendations and face matching) to microservices architecture, online judge platforms, and disaster management systems. As UIUCPC mentor and founder of UIU Scholars Squad, I've trained 50+ students and reached 3,000+ learners, sharing knowledge and fostering collaborative learning.

Quick Facts

🎓

Education

UIU CSE Graduate

Deep understanding of CS fundamentals, DSA, DBMS

🏆

Competitive Programming

Codeforces Specialist (1578)

CodeChef 4-Star (1854)

2× ICPC Dhaka Regional Participant

🥇

Programming Contests

IUPC: MU 42nd • KUET 50th • CUET 51st • IUT 53rd

🏅

Project Show Awards

1st in Advanced OOP

2nd in System Analysis & Design

3rd in DBMS & SE Lab

📊

Data Science

AI/ML Researcher

Kaggle Competitor

Bachelor of Science in Computer Science & Engineering

United International University2021 - 2025

Competitive Programming

2500+ Problems Solved Across Platforms

2× ICPC Dhaka Regional Participant • 300+ Contest Participations

Codeforces

1900+

Problems Solved

1578

Max Rating

Specialist

Rank

@pagol

CodeChef

1854

Max Rating

100+

Problems

4-Star

Rank

@sabbir772

AtCoder

300+

Problems Solved

967

Max Rating

Green

Rank

@sabbir772

Achievements

Contest placements, hackathons, and competitive programming milestones

UIU CSE Project Show: 1st in Advanced OOP, 2nd in System Analysis & Design, 3rd in DBMS & SE Lab

10th Place in ML Olympiad 2024

2× ICPC Dhaka Regional Participant (2024, 2025)

IUPC Rankings: MU 42nd | KUET 50th | CUET 51st | IUT 53rd | DUET 69th

Top-20 national rankings in individual programming contests

300+ online programming contests participated.

10+ onsite contests including BUET, CUET, KUET, IUT, MU, DIU, and more.

Tech Stack

Proficient across Full-Stack Development, Machine Learning, and DevOps

Core Strengths

Most proficient and frequently used technologies

C++

Python

Java

SQL

Django

Git

VS Code

Proficient Skills

Languages

CC++PythonJavaSQLC#JavaScriptPHP

Backend & APIs

Node.js.NET CoreFlaskREST APIgRPCWebSocketsMicroservices

Frontend

JavaScriptReactReact NativeBootstrap

Databases

PostgreSQLMongoDBMySQLSQLite

AI/ML & CV

PyTorchYOLOOpenCVHugging FaceRAGTransformersSpeech Recognition

DevOps & Tools

DockerKafkaAgileLinux

Featured Projects

Building innovative solutions across Full-Stack, Machine Learning, and System Design

Nostalgia — Social Media Platform for Elderly Users

Integrated NID-based identity verification with JWT-secured authentication. Built ML-driven recommendation pipelines for friends, posts, and blogs. Implemented intelligent person-matching using face recognition, behavioral history, and education data.

NID Verification
Different aged Face Matching
Real-time Chat
ML Driven Recommendations

Caregivers — Platform for Compassionate Support

Engineered a full-stack caregiving platform with scheduling, approvals, blogs, chat, calendar, and chatbot. Enhanced discoverability through advanced search, autocomplete, and role-based administrative controls.

Advanced Search and Filtering
Autocomplete
Task Scheduling
Chat & Chatbot

Library & Finance Microservices System

Architected a dual-microservice backend for library and university finance operations using REST and gRPC with JWT-based security. Implemented scalable authentication, book/loan workflows, and student fee processing.

Microservices
gRPC
Automated Testing

UIUCPC Online Judge Backend — Competitive Programming Platform

Ongoing

Developed an advanced online judge backend for UIUCPC using Django and Judge0 API integration. Implemented submission handling with Redis for inter-service communication, Base64 encoding/decoding, Docker containerization, and comprehensive test case management with detailed status tracking.

Judge0 Integration
Redis Messaging
Docker Deployment
Real-time Status Updates

FundWave — Crowdfunding & Loan Platform

Built a comprehensive crowdfunding platform with university loan management, campaign creation, bidding system, and real-time payment integration. Implemented secure authentication, loan/fund posting, reviews system, and MongoDB-based data management.

Bidding System
Payment Integration
Loan & Campaign Management

ShecchaShoinik — Disaster Volunteer Management System

Developed a disaster volunteer management system with blood bank integration and task coordination to streamline volunteer efforts. Implemented real-time chat and live news/map updates for efficient disaster tracking and communication.

Blood Bank Integration
Management System
Real-time Chat
Live Map Updates

Jamnai Bus — Intelligent Bus Management System

Built an intelligent bus management system integrating IoT hardware, computer vision, and web technologies. Implemented YOLOv5-based AI passenger counting, real-time bus tracking, digital ticketing, and Raspberry Pi hardware control for automated operations combining software, hardware, and ML.

AI Passenger Counting
IoT Hardware Integration
Real-time Tracking
Software + Hardware + ML

Research & Publications

Advancing AI/ML through Speech Recognition and Computer Vision

Bangladeshi Dialect Speech Recognition

Undergraduate Thesis

Developed an advanced speech recognition system for Bangladeshi dialects using multimodal NLP and audio data. Applied transformer-based architectures and LoRA fine-tuning on large language models for dialect adaptation.

Weighted Learning System Proposed
Transformer Models
LoRA Fine-tuning
Multimodal NLP
LLM Adaptation
Dialect Recognition
Curated Dataset
Audio Processing
PyTorchTransformersLoRANLPLLMSpeech RecognitionMultimodal LearningAudio ProcessingDataset Curation

Bangladeshi Rice Grain Classification

Conference Paper (Peer-reviewed)

Developed a CNN-based rice grain classification model leveraging a custom-curated dataset and OpenCV-based preprocessing, incorporating transfer learning techniques for high accuracy classification.

Custom Dataset
Transfer Learning
Image Processing
PyTorchOpenCVCNNTransfer Learning

Experience

Teaching, mentorship, and community leadership roles strengthening programming foundations

Co-Founder & Instructor

Sept 2022 – Present

UIU Scholars Squad (UIUSS)Dhaka, Bangladesh

Co-founded and guided an educational outreach initiative delivering live sessions on core CS topics and benefiting 3,000+ students.

Designed structured modules for programming, data structures, and algorithms
Led interactive sessions with live coding and Q&A
Built a collaborative learning community within UIU
Reach 3000+ students through workshops and online sessions
CJavaOOPData StructuresInstructionCommunity Building

Mentor & Judge

Jan 2025 – Dec 2025

UIU Competitive Programming Community (UIUCPC)Dhaka, Bangladesh

Mentored 100+ students in algorithmic problem-solving while judging and curating intra-university contests.

Guided mentees through contest strategies and live problem walkthroughs
Led problem-setting and judging to foster a strong competitive culture
Promoted analytical thinking across UIU campuses
C++PythonProblem DesignContest CoachingJudging

Undergraduate Teaching Assistant (UGA)

June 2024 – Oct 2024

United International University (UIU)Dhaka, Bangladesh

Assisted faculty with labs, coursework evaluation, and personalized academic support in programming and data structures.

Guided students through lab exercises and hands-on coding
Improved problem-solving proficiency via one-on-one mentoring
Supported grading and feedback for programming assignments
CC++Data StructuresTutoringLab Support

Campus Activities

Mentoring and empowering the next generation of problem solvers

UIUCPC Mentor

Trained 50+ members, led judging and problem setting for multiple Intra-UIU Programming Contests, and served as Undergraduate TA.

UIU Scholars Squad Founder

Conducted live sessions on core CS topics, reaching over 3,000 students and fostering a collaborative learning environment.

📄 Resume & CV

Download role-specific resume tailored to your hiring needs

General Resume

2026

Comprehensive overview of skills, projects, and achievements

Software Engineer

SWE

Full-stack development, system design, and software engineering

ML/AI Resume

AI/ML

Specialized in Machine Learning, AI, and Computer Vision

Academic Resume

Research

Focus on academic projects, research, and publications

Let's Build Something Amazing

I'm always open to discussing new projects, research opportunities, or collaborations.

+880 1571-144383
+880 1571-144383
sabbir772002@gmail.com

Send Me a Message