Full Stack Developer

Jose Arpaia Quintero

I build fast, accessible web and mobile apps with React, Next.js and TypeScript.

TypeScript

React

Next.js

Node.js

About

A bit about me

I'm a full stack developer based in Panamá with over four years of experience building web and mobile applications. I currently work at BlueCore, crafting mobile banking apps for the financial sector with Ionic and Angular, before that I spent three years at Etyalab shipping web products with Vue, React and Next.js.

I work across the stack with TypeScript, Node.js and PostgreSQL, and lately I've been building AI-powered side projects like a gym routine manager with vision-based equipment recognition and a voice-first app for practicing spoken English. As a full stack developer, I enjoy working with a wide range of tools and technologies, and I'm always looking for ways to improve my skills and knowledge. Being able to work with projects that actually change people's lives is a dream come true to me.

Outside of code: I enjoy sports, pop culture movies, tv shows, and video games. I'm a big fan of football, enjoy watching italian Serie A matches and playing FIFA (or A.K.A nowadays as EA Sports FC lol) with friends. Also, I like reading books, or listening to audiobooks lately.

Location: Panamá
Experience: 4+ years · currently @ BlueCore
Focus: Web & mobile products
Languages: Spanish · English

Career

Professional Experience

Nov, 2024 — Present

Software Engineer at BlueCore, S.A.

I build and ship mobile applications for the financial sector, owning the UI layer and feature delivery end to end — from implementation to a polished, seamless user experience.

Develop and maintain mobile banking apps with Ionic + Angular for financial-sector clients.
Own the user interface layer: new features, UX consistency and performance.
Work day to day with a close-knit, supportive engineering team.

Nov, 2021 — Nov, 2024

Frontend Developer at Etyalab S.A.

For three years I developed and maintained the company’s web applications — building user interfaces, shipping new features and keeping the product experience consistent across releases.

Built and maintained production user interfaces with Vue, React, Next.js and TypeScript.
Shipped continuous visual and functional improvements across the product suite.
Owned user experience quality from design handoff to release.

Work

Projects

View all projects

Live

Quiniela Fifa World Cup 2025

This project is a full-stack web app for playing and guessing the results of the 2026 FIFA World Cup. It is built with Next.js, PostgreSQL, TypeScript, Tailwind CSS, and Node.js. The app uses a Neon.com postgresql database for storing the results of the matches and the user’s guesses. The app also uses vercel for hosting and deployment. The project is open-source and available on GitHub.

Live

Gym Routine Manager

This is a full-stack web app for building and managing personalized gym routines, powered by AI. Users create weekly routines organized by muscle groups, then use the built-in AI analyzer to identify gym machines from a photo — Claude Vision recognizes the equipment, lists the muscles it targets, and generates step-by-step exercises. Analyzed machines are automatically surfaced inside the relevant routine days based on muscle group matching.

Live

Chatterly

Chatterly is a voice-first web app that helps users practice spoken English through real-time AI conversations. Users speak directly into the browser — their audio is transcribed via Groq Whisper, processed by a LLaMA 3.3 70B model, and replied to using Azure Neural Text-to-Speech — creating a natural, immersive dialogue loop.

Live

URL Shortener

A production-ready URL shortening service built with Go, featuring a REST API, PostgreSQL persistence, and a server-rendered frontend. Implements FNV-32a hashing for short code generation, per-request logging middleware, and click tracking per shortened URL. Containerized with Docker Compose for one-command local setup.

Golang