About Me
Architecting purpose-driven software with clean design patterns, practical systems engineering, and open collaboration.
Engineering Approach
I am driven by turning intricate problems into clear, dependable software. Rather than treating code as just syntax, I approach development from a systems perspective—prioritizing architectural clarity, maintainability, and real-world utility in every layer I touch.
My experience spans full-stack web platforms, cross-platform mobile apps, automated data pipelines, and intelligent systems powered by modern AI and machine learning. Whether architecting civic intelligence engines like ProjectTrack to uncover public infrastructure insights through graph databases, or applying Domain-Driven Design to space exploration apps, I enjoy solving concrete challenges that deliver measurable value.
Outside of solo engineering, I thrive in collaborative hackathons and open-source ecosystems. I value clean abstractions, well-documented APIs, and continuous iteration with forward-thinking engineering teams.
Recognitions & Honors
ITE Olympics — Java Competition 2025
Awarded 1st Place Champion in the Java Programming Competition organized by ACLC College of Mandaue - Computer Studies Organization.
ITE Olympics — Web Development Competition 2026
Awarded 3rd Place in the Web Development Competition organized by ACLC College of Mandaue - Computer Studies Organization.
Hacktoberfest Cebu 2026 — Best Overall Project
Organized by Cebu Tech Communities. Awarded to team "Reyal or Pake?" for high-impact open source engineering and project architecture.
Hacktoberfest Cebu 2026 — Best Use of AI
Organized by Cebu Tech Communities. Awarded to team "Reyal or Pake?" for exceptional integration of generative AI and LLM workflows.
Projects
A collection of civic intelligence platforms, native mobile applications, full-stack systems, and open-source browser extensions.
ProjectTrack
Civic Intelligence & Infrastructure Transparency Engine
Civic intelligence and transparency platform for DPWH infrastructure projects across Cebu. Transforms fragmented public civil works data into verifiable, geospatial, and graph-powered community intelligence.
Atmos
Native Weather App & AI Meteorological Assistant
A pure native mobile application (Android & iOS) delivering seamless real-time weather forecasting paired with an intelligent conversational AI chatbot assistant for meteorological context.
AstroLens
NASA Space Data & Astronomy Explorer
Cross-platform mobile application for exploring NASA's vast collection of space data — from daily astronomy images (APOD) and near-Earth asteroid tracking to space weather alerts, full-disc Earth imagery, and NASA media archives. Architected with Flutter and Dart using Domain-Driven Design (DDD) and Clean Architecture.
ShopLynx
Modern Full-Stack E-Commerce Platform
A modular full-stack e-commerce web platform engineered for seamless shopping, featuring dynamic product catalog management, persistent cart workflows, and secure order processing with RESTful API communication.
AdaptiFork
Modular Web Accessibility Hub Browser Extension
A highly modular and contributor-friendly browser extension acting as a customizable accessibility hub for the modern web, built with decoupled architecture for rapid community feature expansion.
Skills & Technologies
Tools, frameworks, and technologies I work with daily across full-stack web, mobile, and data workflows.
Languages
Core languages used for backend logic, mobile apps, and scripts.
Frameworks & Mobile
Component-driven frontends, native mobile apps, and REST API frameworks.
Databases & Storage
Graph databases, relational SQL stores, and real-time cloud data services.
AI, Automation & Tools
Inference pipelines, scraping engines, version control, and environments.
Education & Milestones
Formal academic background in Computer Science along with ongoing technical milestones.
ACLC College of Mandaue
Core Study & Practicum
Undergraduate curriculum centered on data structures, algorithmic efficiency, relational and graph database architectures, object-oriented design, RESTful API development, and cross-platform mobile computing.
Get In Touch
Whether you want to discuss a software engineering opportunity, collaborate on an open source project, or talk about civic tech — my inbox is open.
charliemangyao@gmail.com
Based in Consolacion, Cebu, Philippines · Open to remote & local roles