Welcome to my GitHub! I’m a Computer Science senior at Universidad Nacional de Colombia (GPA 4.3/5.0), graduating November 2025. I’m passionate about applying AI and privacy techniques to real‑world problems, from education technology to differential privacy, with hands‑on experience in full‑stack and research projects.
- Owlgorithm: A Python + Flask web app powered by GPT‑4o that guides Competitive Programming students through self‑explanation and reflection.
- Graph‑Neural‑GNN: Exploring oversquashing in Graph Neural Networks via Jacobian analysis and Cayley Graph Propagation on the CLRS benchmark.
- Differential Privacy: Implemented user‑level privacy constraints in statistical inference algorithms.
- Research Intern @ Purdue University
August 2024 – February 2025
• Built a GenAI‑driven tutoring app (GPT‑4o) for Competitive Programming education using advanced prompt engineering. - Software Engineer Intern @ Twilio
June 2024 – August 2024
• Developed a Spring Boot service for global phone‑number geolocation across 10 + countries. - Full‑Stack Engineer @ Universidad Nacional de Colombia
April 2021 – July 2021
• Created a Flask app integrating citation–database APIs to automate research‑paper metadata collection.
| Repository | Description |
|---|---|
| oversquashing‑measured‑by‑jacobian | Research code analyzing GNN oversquashing via Jacobians |
| Statistical‑inference‑with‑user‑level‑privacy‑constraints | Differential‑privacy experiments in Python/Jupyter |
| Secret Safe | Desktop cryptography app (RSA, ElGamal, AES) |
| COVID in Colombia | Data‑analysis of 6M+ COVID cases using PostgreSQL & scikit‑learn |
| best‑stocks | Vue.js equity‑tracking dashboard |
…and more! Check out my profile for all repositories.
- Languages: Python • C++ • SQL • Java
- Frameworks & Libraries: Flask • Spring Boot • Django • LangChain • GPT‑4o
- Dev & Data: Git • GitHub • Docker • Redis • PostgreSQL • scikit‑learn
- ✉️ junietoc@unal.edu.co
- 📍 Bogotá, Colombia
Thank you for visiting!
Feel free to explore my work and reach out if you’d like to collaborate.