Stefewn Johnson

Built a maintenance system and database in Microsoft Access, enabling admin users to issue maintenance notices Rebuilt TTC's old Microsoft Access forms and reports using HTML, CSS, and JavaScript for better functionality and UI Developed an employee database in Microsoft Access to streamline the process of updating TTC employee information, using SQL and VBA to reduce the task to a two-button operation

Programmer/Analyst Co-op - TTC - Toronto, Canada

(2025-05 - 2025-08)

• Built a maintenance system and database in Microsoft Access, enabling admin users to issue maintenance notices
• Rebuilt TTC's old Microsoft Access forms and reports using HTML, CSS, and JavaScript for better functionality and UI
• Developed an employee database in Microsoft Access to streamline the process of updating TTC employee information, using SQL and VBA to reduce the task to a two-button operation
• Engineered a calendar application using HTML, CSS, and JavaScript, displaying historical and current train service data for each day, peak, and train line for TTC staff

Research Assistant (Machine Learning) - York University - North York, Canada

(2024-05 - 2024-08)

• Built a GPT-2 model in Python to predict emotions in conversational text using sequence modeling
• Trained and fine-tuned the model on the DailyDialog dataset, including data preprocessing, tokenization, and a labeled text classification task
• Assessed model performance on emotion prediction tasks, like happy, sad, or angry, using classification accuracy

Soccer Head Coach - Thornhill Soccer Club

(2023-05 - 2025-10)

• Strategized training, ensured sports area upkeep, mentored players, and exhibited strong leadership for team success

Spec. Hons. Bachelor of Science - Computer Science - York University, Lassonde School of Engineering (2022-09 - 2026-04)