Case studies showing how I think through architecture, tradeoffs, and the messy middle of shipping.
A resilient git commit automation tool with BullMQ workers, multi-round retry, and non-fast-forward recovery — built to keep contribution graphs green without manual intervention.
A cross-platform password manager with zero-knowledge encryption, biometric auth, and a Chrome extension with WebSocket bridge for automatic credential capture and auto-fill.
A multi-agent repo analysis tool built as a developer playground at a US company, collaborating with 2 devs and the director — auto-generates docs, architecture diagrams, and changelogs with 150% performance gains from parallel orchestration.
A 6-column task board with drag-and-drop, Cmd+K command palette, automated task transitions, and recurring task scheduling with relative date math.
A privileged Linux daemon that autonomously tunes CPU/GPU fan speeds via PID control and workload classification over real-time sensor data, with a Tauri dashboard.
A multi-tenant Messenger concierge that handles Taglish/English inquiries with context retention and Filipino service tone, automating pricing, booking, and lead capture.
A production-ready React Native fintech app with 20+ features including AI receipt OCR, budget analytics, bill reminders, subscription tracking, and an offline-first data layer.
A microservices-based RAG chatbot for PDF ingestion, vector storage in Pinecone, and low-latency conversational retrieval with streaming responses.
A full-stack resume intelligence platform using OpenAI to extract structured data from uploaded resumes, with an AI-powered dashboard for candidate evaluation.
A real-time BERT-based network intrusion detection system with adaptive feedback loops, achieving 99.97% accuracy and 5.54ms average latency on evolving cyber threats.
A custom 2-layer neural network built from scratch (no ML frameworks) achieving 97.16% accuracy for malware detection via Android app permission analysis.
A mesh-based messaging platform built with 4 other devs, using Wi-Fi Direct for secure, internet-free communication with end-to-end encryption during emergencies.
A restaurant reservation system with secure authentication, scheduling, and admin dashboards built in Ruby with a normalized PostgreSQL schema.
A full-stack room reservation and scheduling system with OTP-based authentication — built for a software engineering course at UP Los Baños.
A multiplayer LAN game with real-time socket-based communication and player synchronization — built for a networking course at UP Los Baños, based on the traditional Filipino street game.
A fish-eat-fish game inspired by agar.io with responsive controls, collision detection, and growth mechanics in a vibrant underwater environment.
A commission project built with 3 other devs — a mobile app for real-time tree disease detection using YOLOv8 and TensorFlow via smartphone cameras.
A Flutter health monitoring app for COVID-19 campus protocols with QR check-ins, health condition logging, and admin approval workflows.
A clearance workflow platform built with 3 other devs for a web development course — role-based access, multi-step validation chains, and audit-ready API endpoints.
An interpreter for the LOLCODE esoteric programming language, implementing lexing, parsing, and evaluation from scratch in Python.
An interactive tool for solving quadratic spline interpolation and simplex method problems with visualization and step-by-step solutions.
A tic-tac-toe game with an unbeatable AI opponent using the minimax algorithm with alpha-beta pruning.