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Hello, I'm Wahid Arefin Data Scientist & Business Analytics Expert

Results-driven data scientist with expertise in Python, Java, SQL, and cloud technologies. Skilled in machine learning, data visualization, and troubleshooting to deliver reliable, scalable solutions. Experienced in leveraging AWS, Docker, and CI/CD pipelines to support deployment and optimize performance. Passionate about applying technical expertise to enhance efficiency, resolve complex issues, and contribute to innovative cloud-based solutions.

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Wahid Arefin
Python
SQL
ML
Tableau
Power BI
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About Me

Get to know me better

Data Scientist & Business Analytics Expert

Analytical and adaptable professional with a master’s in data science, experienced in Python, Java, and SQL for problem-solving, system optimization, and data-driven decision-making. Skilled in building scalable solutions, troubleshooting technical issues, and delivering clear documentation. Eager to apply technical expertise and collaborative skills across development, analytics, and support functions to drive business and technology outcomes.

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Skills & Expertise

Technologies I work with

Programming & Cloud Engineering

Python 95%
SQL & Oracle 90%
R Programming 85%
Java 85%
Git & REST APIs 80%

Machine Learning & Statistics

Machine Learning 90%
Statistical Analysis 88%
Predictive Modeling 85%
Data Mining 80%

Data Visualization & BI

Tableau 90%
Power BI 88%
Excel & NodeXL 85%
R Shiny 80%

Cloud & DevOps

AWS & Azure 85%
Docker & CI/CD 80%
GitLab & GitHub 88%
MLOps & Automation 75%

Experience & Education

My journey so far

Cybersecurity & Data Operations Intern

Conatix

March 2025 - Present

Strengthened API security by implementing endpoint protections and JWT integration, reducing vulnerabilities in cloud-based data flows. Troubleshot system crashes across multiple virtual machines, improving uptime and reliability. Compiled and analyzed threat intelligence from VirusTotal and Malware Bazaar, supporting data-driven decisions for cloud security.

API Security JWT Integration Multi-VM Testing Threat Intelligence Cloud Security

HR Analyst Intern

Continental Tyres Sdn Bhd.

January 2023 - April 2023

Conducted in-depth analysis of generational preferences for compensation and benefits, developed tailored strategies using Power BI and Excel. Engineered automated HR analytics metrics and managed recruitment processes including resume screening and candidate interviews.

Power BI Excel Analytics HR Analytics Data Analysis

Master's in Data Science

Monash University

2024 - July 2026 (Expected)

Currently pursuing advanced studies in Data Science, specializing in machine learning, statistical analysis, and business analytics. Developing expertise in AI applications, predictive modeling, and data-driven decision making for business impact.

Machine Learning Statistical Analysis AI Applications Business Analytics

Bachelor's in Business Analytics

Sunway University

2020 - February 2024

Completed comprehensive studies in Business Analytics, focusing on data analysis, statistical methods, and business intelligence. Built strong foundation in programming, data visualization, and analytical problem-solving.

Business Intelligence Data Analysis Statistical Methods Data Visualization

Featured Projects

Some of my best work

Slide→Quiz Generator

📚 Slide→Quiz Generator

A modern, AI-powered quiz generator that converts PDF slides into interactive multiple-choice quizzes with an integrated AI tutor. Features PDF text extraction, Gemini AI integration, multiple quiz sets, and real-time feedback with smart fallback systems.

HTML5 CSS3 JavaScript PDF.js Gemini AI
Fête à Crêpe - Premium Crepe Cafe Food Ordering System

🥞 Fête à Crêpe - Premium Crepe Cafe Food Ordering System

A comprehensive food ordering system for a premium French crepe cafe in Chilly-Mazarin, France. Features bilingual support (EN/FR), full-featured admin panel with real-time menu management, advanced analytics dashboard with Chart.js visualizations, and responsive design optimized for all devices.

HTML5 CSS3 JavaScript Chart.js Responsive Design Admin Panel

Heart Disease Risk Prediction

Developed a machine learning-based cardiovascular risk prediction system achieving 92.4% accuracy using Random Forest model. Created an interactive R Shiny web application for healthcare professionals to perform rapid risk assessments.

Python Random Forest R Shiny CRISP-DM

Used Cars Predictive Pricing System

Designed a comprehensive system using XGBoost model for predicting and filtering used car prices based on criteria like mileage and condition. Integrated with Python web framework for easy user interaction and data visualization.

XGBoost Python Data Visualization Web Framework

Cybersecurity Threat Intelligence Dashboard

Developed threat intelligence data collection and analysis system at Conatix. Created comprehensive dashboards for malware analysis, competitor benchmarking, and security metrics visualization.

Data Collection Threat Intelligence Dashboard Design Security Analytics

Interactive Business Intelligence Dashboard

Created comprehensive business intelligence dashboards using Tableau and Power BI for data-driven decision making. Integrated multiple data sources with advanced analytics and real-time reporting capabilities.

Tableau Power BI Data Integration KPI Metrics

HR Analytics & Generational Insights

Conducted comprehensive analysis of generational preferences for compensation and benefits at Continental Tyres. Developed automated Excel-based HR analytics metrics and created tailored strategies using Power BI.

Power BI Excel HR Analytics Statistical Analysis

Statistical Analysis & Data Mining

Comprehensive statistical analysis projects using R, Python, and SQL for data mining, hypothesis testing, and predictive analytics. Applied advanced statistical methods including regression analysis and clustering algorithms.

R Programming Python SQL Statistical Modeling

Get In Touch

Let's work together

Let's discuss your next data project

I'm always interested in new opportunities and exciting data science projects. Whether you need predictive modeling, business analytics, or data visualization, feel free to reach out!

Location

Malaysia

Email

mdwahidislamarefin@gmail.com

Phone

+60-163016-913