Flutter developer who ships mobile apps end to end: client, Firebase backend, monetization and store releases.

Mobile App Developer at Grupo Barceló · Studying Multi-platform Applications Development (DAM) at CIDE · Spain

Three apps live on the App Store under my own developer account, and FitVerso is also on Google Play.

Portfolio · LinkedIn · Email · My apps on the App Store

	FitVerso  Gamified fitness · iOS and Android · built solo Workout routes that unlock day by day, XP and levels, streaks, clubs, an AI nutrition chat and a PRO subscription. Flutter · Riverpod · GoRouter · Firebase · Cloud Functions (TypeScript) · Supabase · RevenueCat · HealthKit / Health Connect · WidgetKit and Live Activities
	Star AI  Gamified multi-model AI chat · iOS Free AI chat with an energy economy instead of fixed hourly limits. Switch between Fast, Smart, Code and Vision modes, earn XP and complete daily missions. Flutter · Riverpod · GoRouter · Firebase · Cloud Functions (TypeScript) · AdMob rewarded ads
	Sushii  Virtual-pet game · iOS Look after Nigi the nigiri, earn coins in a climbing minigame and keep a streak of real sushi dinners, solo or with a partner. No ads, no in-app purchases. Flutter · Firebase (Auth, Firestore, Storage) · Game Center · WidgetKit

_{App source code is private. I'm happy to walk through it on request.}

• Server-authoritative economy. In FitVerso, XP, coins and rewards are granted only by Cloud Functions inside atomic, idempotent transactions. PRO status is synced from a RevenueCat webhook instead of being trusted from the client, and new callables require Firebase App Check.
• LLMs behind the backend. LLM calls in FitVerso and Star AI go through Cloud Functions, with multi-model routing and automatic fallback. Model API keys stay server-side and never ship in the app.
• Automated releases. FitVerso's GitHub Actions workflows run analysis, tests and custom quality gates (file size, design tokens, callable contracts), build a signed Android App Bundle, upload iOS builds to App Store Connect and deploy Cloud Functions.
• Tested and bilingual. FitVerso has 230+ Flutter test files, plus Jest tests for Cloud Functions and for security rules on the Firebase emulator. All three apps are localized in English and Spanish.

TradeShips.io: a browser strategy game about naval trade and warfare. It is a fork of OpenFront.io (AGPL-3.0) that I reworked around the sea: submarines, torpedoes, naval mines and aircraft carriers; a trade economy with trade lanes, tariffs and national debt; a World Congress voting mode; and fleet and economic AI for bot nations. My changes add about 20k lines across 285 files, 6.8k of them tests.
_{TypeScript · Pixi.js · WebGL / GLSL · Vitest}

• Mobile App Developer, Grupo Barceló · Mar 2026 – present
  Building mobile apps in a professional setting, contributing to product work, ongoing maintenance and development best practices.
• Higher Technician in Multi-platform Applications Development (DAM), CIDE · Sep 2025 – present
  Non-university higher education (EQF level 5, 120 ECTS, 2,000 hours), combined with my own projects.

Mobile  

Backend  

Product & delivery  

Also: Riverpod, GoRouter, Swift (WidgetKit, Live Activities), Next.js, React, Tailwind CSS, Java, Python, SQL.

_{Apple, the Apple logo and App Store are trademarks of Apple Inc. Google Play and the Google Play logo are trademarks of Google LLC.}