SENIOR FULL-STACK DEVELOPER · 8+ YEARS EXP

Building scalable
applications, crafted
with precision.

I'm Charville Ubagan — a Senior Full-Stack Developer based in Lugait, Misamis Oriental, Philippines. With 8+ years of experience, I specialize in designing scalable, high-performance applications, modern JS frameworks, and secure API-driven systems.

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ABOUT ME

Turning complex business needs into clean solutions.

Senior Full-Stack Developer with 8+ years of experience designing and building scalable, high-performance applications. Proven expertise in modern JavaScript frameworks, cloud-based architectures, and API-driven systems, with a strong focus on performance, maintainability, and user experience.

Graduated with a Bachelor of Science in Information Technology from the University of Science & Technology of Southern Philippines (2014–2018) as a top-performing student and team lead on academic projects.

LOCATIONLugait, Misamis Oriental, PH
EXPERIENCE8+ Years
STATUSOpen for Opportunities
WORK HISTORY

Professional Experience.

Tech Lead

The Vam Group Dec 2024 - Jan 2026
  • Developed and maintained PHP-based web applications with a focus on performance and scalability.
  • Built and customized multiple WordPress websites, including theme and plugin development.
  • Implemented web security best practices to protect applications against common vulnerabilities.
  • Integrated third-party and internal APIs to enable secure data exchange and system automation.

Senior Full Stack Developer

Wise Vu Sep 2024 - Mar 2025
  • Led the development of client-focused WordPress solutions and backend APIs.
  • Integrated CRM platforms to streamline operations and enhance data-driven decision-making.

Full Stack Developer

Direct Sourcing Solutions Nov 2023 - Jul 2024
  • Oversaw AWS infrastructure and WordPress hosting services, optimizing performance, security, and reliability.
  • Implemented CI/CD pipelines to streamline development workflows and accelerate release cycles.
  • Resolved complex React Native issues across client applications, ensuring stable production releases.
  • Led the development of the company website and managed SEO initiatives across multiple client accounts.

Full Stack Developer

Goshen Cybernetics Feb 2018 - Sep 2023
  • Engineered an RFID-based attendance system with real-time SMS alerts for monitoring and notifications.
  • Developed cross-platform mobile applications using Ionic and React Native.
  • Designed and built a library management system using CodeIgniter.

Web Developer - Part Time

Cerebro Diagnostic System Jan 2020 - Aug 2020
  • Designed and developed a secure web application for government hospital insurance claims, streamlining claim processing and improving data accuracy.

Desktop Application Developer

DPWH Regional Office CDO Dec 2017 - Feb 2018
  • Led the development of a biometric-based employee attendance platform, enhancing operational efficiency and data integrity.

Web Developer

Oro Support Solutions March 2017 - Jun 2017
  • Designed and developed custom WordPress websites for global clients, focusing on performance, scalability, and user experience.
TECH STACK

Skills & Expertise.

Comprehensive breakdown of technologies, frameworks, tools, and AI integration capabilities.

AI & LLM Integration

ChatGPT API Codex Claude Code Voice AI APIs Prompt Engineering

Programming Languages

Python C# C++ Java JavaScript TypeScript PHP Dart Swift

Web & Mobile Development

React Vue.js Laravel CodeIgniter Express.js WordPress Flutter React Native Ionic

Databases, Cloud & Tools

MySQL PostgreSQL Firebase Microsoft SQL AWS DigitalOcean WP-Engine CI/CD & Git
SELECTED WORK

Real Projects & Mobile Apps.

ENTERPRISE · LEGACY CRM · PAID ADS & ANALYTICS

Bosley — America's #1 Hair Restoration Company

Created the high-performance platform for America's premier hair transplant leader. Seamlessly integrated with legacy CRM systems, custom paid ads marketing pipelines, advanced tracking and analytics, and optimized for maximum speed and conversion.

Legacy CRM Integration Paid Ads Tracking High Performance Analytics
Bosley Preview
PYTHON · GOV APIS · HEALTHCARE (PHILIPPINES)

Cerebro eClaims — PhilHealth Insurance System

An application used by hospitals and diagnostic systems for processing Philippine Philhealth insurance claims. Designed using Python and integrated with official government APIs to manage patient transmittals, real-time claim statuses, and financial tracking.

Python Government APIs Healthcare Systems Desktop & Web Integration
eClaims Preview
AI · WEB APP · EDTECH (JAPAN)

LinguaAI Japan — English Learning Web App

An AI-assisted English learning platform tailored for Japanese students. Features interactive daily AI lessons for business email etiquette, automated grammar visualizer diagrams, and real-time speech analysis with pronunciation and diction feedback.

ChatGPT API Voice AI React Speech Analysis
LinguaAI Preview
Dashboard
Lessons & Grammar
REACT NATIVE · MOBILE · HIGHER ED

Mountain View College Mobile App

A comprehensive cross-platform mobile application built for Mountain View College students. Features secure SMS credential authentication, built-in digital student wallets for cafeteria purchases, real-time schedule tracking, clearance management, and direct institutional portals.

React Native SMS Auth Digital Wallet REST APIs
MVC App Preview
Welcome
Login
Dashboard
Wallet

Let's build something exceptional together.

Open to select full-stack roles, consulting, and engineering projects.

charvilleubagan@gmail.com +63 999 163 6700