Juan Sebastián
Urrea López

Local multiplayer tournament game where a Human faces an Alien across six wildly different cosmic sports. Each game reinvents a classic competition — billiards in darkness, volleyball with shifting gravity, sumo on a volcano, and more. Won Best Game Experience at the Electronic Arts GameJam 2026.

Software-based naval radar operations simulator developed in collaboration with the Colombian Navy. Published at IEEE ICMT 2025 and validated by active naval personnel. Models radar sweep, target detection, and multi-target tracking in real time.

Annotated Jupyter notebooks and implementation exercises following the Sutton & Barto Reinforcement Learning textbook. Covers tabular methods, policy gradient, Q-learning, actor-critic, and function approximation — with clean Python implementations and plots for every major algorithm.

Collection of interactive, browser-based visualizations for every major topic in the AI textbook by Russell and Norvig (4th edition). Covers search algorithms, constraint satisfaction, Bayesian networks, reinforcement learning, and more — making abstract concepts tangible for learners.

AI-powered stock market analytics dashboard built with Vue.js. Aggregates financial news, runs sentiment analysis, and surfaces trading signals to help investors make more informed decisions with up-to-date market insights.

CLI tool and TypeScript library that extracts and batch-downloads GitHub's auto-generated OpenGraph social-preview images for any set of public repositories. Useful for portfolio builders, README generators, and automated documentation pipelines.

Large-scale ETL pipeline for collecting and preprocessing Spanish-language text to train 50-billion-parameter LLMs for Latin America. Covers 33+ institutions and 12 countries, aggregating legal, academic, and news content with deduplication and quality filters.

Event-driven microservices architecture on Google Cloud Platform for a luggage-broker backend. Implements CQRS with Cloud Run services, Pub/Sub messaging, Cloud SQL, and a CI/CD pipeline using GitHub Actions — demonstrating production-grade cloud-native patterns.

High-performance Rust implementation of the Pulse algorithm for solving the Constrained Shortest Path Problem (CSPP). Used in vehicle routing and logistics optimization, the Pulse algorithm efficiently prunes the search space via bound dominance, dramatically reducing computation time.

Interactive dashboard for characterizing radio-frequency signals in real time. Visualizes FFT spectra, signal strength over time, and anomaly detection overlays. Designed for spectrum monitoring and RF engineering workflows. Winner of Codefest Ad Astra 2024.

Lightweight satellite image encryption system designed for resource-constrained embedded hardware. Implements custom cipher algorithms optimized for low-power devices to secure imagery captured by small satellites. Winner of the Codefest Ad Astra 2024 national hackathon.

Developer tool for creating beautiful, searchable documentation sites hosted on GitHub Pages — written entirely in Markdown. Provides automated navigation, syntax highlighting, and responsive design with zero configuration, lowering the barrier for projects to have professional docs.

Interactive dashboard for Colombia's National Road Institute (INVIAS) to analyze bridge intervention priorities across the national road network. Models the graph of road segments and simulates connectivity impact of bridge closures using network analysis.

Aerial, space, and cyber software toolkit for monitoring and protecting the Colombian Amazon. Integrates satellite imagery processing, anomaly detection, and geospatial dashboards to support conservation authorities. Winner of the Codefest Ad Astra 2023 national hackathon.

Implementation of Conway's Game of Life compiled from Rust to WebAssembly, following the official wasm-pack tutorial. Runs the cellular automaton simulation at near-native speed inside the browser, demonstrating Rust's memory model and WASM interop via JavaScript.

Data analytics platform for the manufacturing industry, providing operational KPI dashboards, production line anomaly detection, and predictive maintenance insights. Designed to integrate with real-time sensor streams and legacy ERP systems.

Empirical study of inline test co-evolution across 30+ open-source Java projects, conducted during a Summer Undergraduate Research Fellowship at Cornell's Software Engineering Lab. Analyzes how inline assertions and tests evolve alongside production code over project histories.

Real-time classroom availability finder for university students at Universidad de los Andes. The app polls live seat data, surfaces open spots in seconds, and was deployed institutionally so students can register in last-minute open seats before they disappear.

Interactive visualization of the Vehicle Routing Problem with Time Windows (VRPTW) using Plotly. Formulates the combinatorial optimization problem as an integer linear program solved with GurobiPy, then renders routes and time windows in a rich web interface for analysis.

Curated collection of competitive programming solutions in Python and C++, organized by algorithmic paradigm: Greedy, Trees, Dynamic Programming, and Graph algorithms. Written during preparation for university coding contests and the ICPC.

Browser-based maze challenge game with multiple levels, retro aesthetics, and a competitive timer. Players navigate procedurally designed mazes, avoid obstacles, and race for their best completion time. Built entirely with vanilla JavaScript and CSS animations.

Open-source schedule builder for Universidad de los Andes students. Aggregates all available course sections, detects conflicts, and lets students build their ideal timetable visually. Received 8,000+ visits in its first two weeks and earned an official university endorsement.

Web application that uses NLP and AI to improve the search experience on SECOP II — Colombia's public procurement platform — so citizens and auditors can efficiently detect irregularities and fight corruption. Winner of the DataJam for Transparency Colombia 2022.

Python library for processing aerial and satellite imagery, including radiometric correction, band arithmetic, cloud masking, and change-detection algorithms. Built for environmental monitoring workflows and designed to be composable via a clean functional API. 3rd place at Codefest Ad Astra 2022.

Real-time 3-class face mask detection (with mask, without mask, improper use) using SSD architecture on Pascal VOC. Achieved mAP 70.2% at real-time speeds. Published at IEEE CI-IB&BI 2021 — a peer-reviewed international conference.

Comprehensive collection of class notes, problem sets, and study materials from multiple Computer Science and Engineering courses at Universidad de los Andes. Covers algorithms, data structures, AI, computer vision, and systems courses — used by hundreds of fellow students.