Hi, I'm Justin Lee

Data Analyst | Data Engineer | Data Scientist | ML Engineer

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About Me

I am a Data Science graduate from Queensland University of Technology (QUT), specialising in data analysis, machine learning, and impactful data visualisation. I create data-driven solutions that drive business insights and innovation.

TECH Skills

  • Python, SQL, Tableau, R, MATLAB, C#
  • APIs, AWS, Azure, Databricks
  • Flask, Node.js, Express.js, React.js
  • MongoDB, MySQL, PostgreSQL, MS SQL Server
  • Power BI, Docker

Featured Projects

Telco Churn Prediction & Analysis
Telco Churn Prediction & Analysis

Built an end-to-end churn prediction pipeline with feature engineering, profit-optimized thresholding, SHAP explainability, and an interactive Streamlit app.

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AutoML Streamlit Web App
AutoML Web Application

Trained machine learning models using Streamlit and PyCaret with no-code UI.

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AIHW Hospital ETL Dashboard
AIHW Hospital ETL Pipeline & Dashboard

End-to-end pipeline that scrapes AIHW hospital-separation tables, loads PostgreSQL, and serves an interactive Streamlit analytics dashboard.

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Blockchain ETL Pipeline
Blockchain ETL

Extracted and transformed crypto transaction data to PostgreSQL using the Bitquery API.

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AI Flashcard Generator App
AI Flashcard Generator

Full-stack AI-powered flashcard app built with React.js, Node.js, MySQL, and OpenAI API.

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Stock Market Movement Classifier
Stock Market Prediction

Predicted S&P 500 up/down direction using Random Forest and engineered trend features.

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Layoff Data Cleaning in SQL
Layoff Data Cleansing

Cleaned global layoff data using MySQL with deduplication, standardisation, and null handling.

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MongoDB JSON Transformation Project
MongoDB Project

Transformed and cleaned raw JSON datasets for ingestion into MongoDB collections.

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Recipe + YouTube Search App
Recipe Search Web App

Searched recipes via Spoonacular API and fetched cooking videos using YouTube Data API.

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University Admission Scraper
University Scraper

Python scraper for extracting ATAR, degree names, and requirements from UniSC websites.

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Occupation Dashboard
Australia Occupation Analysis

Cleaned Australia occupation data and created interactive insights using MySQL and Tableau.

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AWS Docker Redis File Compressor
Cloud Hosting Project

File compressor app built with Docker, Redis, and deployed on AWS.

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London Bike Sharing Dashboard
London Bike Sharing Analysis

Cleaned bike-sharing data and created interactive insights using Python and Tableau.

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