Gwanwoo Kim

Coursework: Machine Learning · Software Design Patterns · Data Structures & Algorithms · Computer Architecture · Databases · Operating Systems

• Supporting research infrastructure through data migration, API development, and cross-platform application tooling involving Windows and macOS executable formats
• Collaborating with an engineering research lab focused on autonomous systems, contributing software solutions for data processing and system integration

• Preprocessed a confidential Canadian household survey dataset of ~57K records and 1,100+ features, handling missing values, encoding categorical variables, and performing feature selection
• Trained Elastic Net and XGBoost regressors to predict a calculated Housing Burden Ratio; XGBoost outperformed by 19 points in R²; applied PCA and UMAP for dimensionality reduction
• Applied SHAP value analysis to interpret model predictions, identifying household income-related features as the strongest predictors of housing burden

• Built a full-stack personal finance tool to address the lack of granular spending insights in Canadian banking apps, querying and joining multiple tables in the macOS iMessage SQLite database (chat.db) to extract RBC transaction notifications
• Wrote regex-based parsers to extract merchant names, amounts, dates, and transaction types from SMS text, handling structural differences between debit and credit card alert formats
• Developed a FastAPI backend serving parsed transaction data to a web dashboard displaying daily, weekly, and monthly spending breakdowns with per-day calendar views
• Implemented OAuth2 authentication to secure the dashboard, restricting access with token-based login flow

• Developed a network-level ad blocker in C++17 that intercepts and filters DNS queries against a 70,000+ domain blocklist, designed to run on a Raspberry Pi and block ads across all devices on a local network
• Built a companion web dashboard to visualize blocked requests and manage filtering rules, exposing the blocker's state through a lightweight backend interface