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Ervin Pangilinan Portfolio

Developer: Making tech feel simple, one complicated feature at a time.

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About Me

I started coding in 2021, turning a hobby into a daily practice. I build fast, accessible apps and have experience in both solo and team projects. During a backend internship, I worked on REST APIs, databases, secure logins, and automated releases. With a Computer science degree, I focus on clean, maintainable code backed by strong fundamentals and teamwork.

What I can do

  • Web Applications

    Web apps in different architectures: static, single‑page, server‑rendered, multi‑page, or hybrid built for speed, accessibility, and SEO.

  • Mobile Applications

    Smooth mobile apps with offline storage, native UI, and safe updates using React Native/Expo.

  • DevOps Basics

    Automated builds and releases (CI/CD), Docker containers, and cloud hosting with basic monitoring.

  • Game Development

    Small 2D games in Unity with simple controls, basic AI, and optimized UI/performance.



My Developer Timeline

Full-Stack Developer (Intern)

Five Twenty IT Service Jun 2024 – December 2024

Implemented end‑to‑end features for a corporate web platform designed REST APIs, refined responsive React UI, optimized database queries & strengthened testing for reliability.

Express
React
TypeScript
Prisma
PostgreSQL
Digital Ocean
Jest
Docker

Freelance Developer

Self‑Employed 2023 – 2024

Deliver responsive landing pages & small business sites with semantic, accessible markup and lightweight tooling.

NextJs
React Native
Supabase

Student Projects

Cavite State University Bacoor 2022 – 2024

Collaborated with other students on thesis and school projects building full‑stack features with clean architecture, solid state management & automated testing.

React
Node.js
Express
MongoDB
C#
Unity
Python
FastAPI
Spacy

Getting Started

Self Learning 2021

Explored programming fundamentals, version control & web basics turning curiosity into structured learning.

HTML
CSS
JavaScript
Java
Git

Technologies

Skills

  • Astro Astro
  • React React
  • TypeScript TypeScript
  • Node.js Node.js
  • Express Express
  • Prisma Prisma
  • PostgreSQL PostgreSQL
  • MongoDB MongoDB
  • FastAPI FastAPI
  • Python Python
  • React Native React Native
  • Docker Docker
  • Git Git
  • Unity (C#) Unity (C#)
  • Jest Jest

Projects

Selected personal, academic & internship work. Each emphasizes learning, maintainability & real user value.

  • image of paysera timekeeping system
    image of paysera timekeeping system

    Paysera Timekeeping System

    2024 – 2025

    Internship at FiveTwenty: our team built a timekeeping platform. I mainly contributed to the backend, including role-based access control, audit logging, API design, performance tuning, and automated tests.

    • React
    • ShadCN
    • Express
    • Prisma
    • PostgreSQL
    • TypeScript
    • Docker
    • Jest
    • Supertest
    • DigitalOcean
  • image of fair write a gender fair revision web application
    image of fair write a gender fair revision web application

    Fair Write (Gender Fair Revision)

    2024 – 2025

    Group thesis project: my role involved backend and NLP development, where I built REST APIs and integrated pipelines to detect biased terms and suggest inclusive alternatives in real time.

    • Svelte
    • Tailwind
    • Prosemirror
    • FastAPI
    • LanguageTool
    • spaCy
  • image of ajapco sales and inventory system
    image of ajapco sales and inventory system

    Ajapco Sales & Inventory System

    2023

    Freelance project developed a sales and inventory management system for selling japanese sweets.

    • React
    • Node.js
    • Express
    • MySQL
  • image of greencycle a recycling mobile app
    image of greencycle a recycling mobile app

    GreenCycle Mobile App

    2025

    Freelance project built online‑first backend logic with offline support for a recycling app and tested data sync between cloud and local storage across Android/iOS.

    • React Native
    • Expo
    • Supabase
    • TypeScript