Ale Díaz

Full Stack Developer

Panama City, Panama

I build fintech & AI-powered mobile apps that work even when the internet doesn't.

Full Stack developer who has shipped apps with 20K+ combined downloads across fintech, AI/RAG, and e-commerce — from architecture to the app stores. I obsess over offline-first reliability, clean architecture, and experiences users actually love.

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How I Work

My Approach

End-to-End Delivery

From Figma to the app stores. I own the full lifecycle — architecture, development, CI/CD, and deployment.

FlutterNext.jsNestJSCI/CDFigma

Offline-First by Default

Real users have bad connections. I build apps that work without internet and sync seamlessly when it's back.

SupabaseHiveSyncReal-time

Clean Architecture, Not Just Clean Code

Scalable structure with clear boundaries. State management with BLoC/Riverpod, modular features, and testable layers.

BLoCRiverpodClean ArchSOLID

Career Path

Professional Experience

Software Developer

Tropipay

Barcelona, Spain Oct 2024 – Present

Developed cross-platform fintech app (Senda) using Flutter for remittance transfers, mobile top-ups, and digital vouchers — 10K+ downloads on Google Play
Contributing to RalioPay BaaS platform frontend with Next.js for financial services integration
Set up CI/CD pipelines using Codemagic, reducing deployment time by 70%
Implemented scalable solutions tailored to financial regulations for thousands of users

FlutterNext.jsCodemagicPush Notifications

RalioPay Senda Web Senda App

Full Stack Developer

Quasar Software

California, United States Jun 2023 – Sept 2024

Built vacation rental property scouting app (BNB Exchange) for Airbnb hosts — 10K+ downloads on Google Play
Led full development lifecycle reducing property onboarding time by 60%
Integrated Stripe for payments and geo-based search for high-ROI properties
Developed backend with Ruby on Rails for Pong Map sports facility discovery app

FlutterRuby on RailsFirebaseStripeMaps API

Quasar UI D'Lujo BNBX App Pong Map

Flutter Developer

Dofleini

Havana, Cuba Jan 2023 – May 2023

Developed mobile e-commerce app for Tuambia, a Cuban marketplace platform
Implemented state management with Riverpod for efficient data flow
Built product catalog, shopping cart, order management, and authentication features

FlutterRiverpodREST APIs

Flutter Developer

While True Solutions

Havana, Cuba Dec 2022 – May 2023

Developed sports betting app with physical printer integration and sports tracking app
Built real-time score and statistics monitoring for live sports events
Implemented push notifications for live updates and betting status

FlutterHardware IntegrationReal-time Data

Software Developer

Bisalltec S.A.S

Guayaquil, Ecuador Nov 2021 – Dec 2022

Led end-to-end development of HallMed, a mobile health management app
Managed entire project from UI/UX design to deployment independently
Integrated Supabase for real-time database, authentication, and backend services

FlutterSupabaseUI/UX Design

HallMed

Side Projects

Personal Projects

Rplay

Soccer Social Network & Tournaments — 1K+ Active Users

Social network and tournament management platform for amateur soccer players and organizers, with 1K+ active users and growing. Create your sports profile, track match performance, and get discovered by scouts. Advanced tools for team registration, match creation, and real-time statistics.

FlutterNestJSNext.jsTailwindCSSPostgreSQL

Play Store App Store

Mind Cows

Supabase Hackathon Project

Multiplayer puzzle game where players challenge their cognitive skills by guessing the exact numbers in each position of their opponents' boards.

FlutterSupabaseReal-timeMultiplayer

GitHub Hackathon

Freelance Work

Freelance Projects

Synopsia

AI-Powered Knowledge Base

Mobile application that allows users to interact with their device files — audio, documents, and images — organizing them into folders to build a personal knowledge base. Users can then chat with an AI assistant that leverages this curated content to provide contextualized, intelligent responses.

FlutterPythonAI/RAGAudio & Text ProcessingRealtime Chat

View details

Work Connect

HR & Recruitment Platform

Human resources application for managing job applicants. Candidates register their profile, upload their CV, and AI automatically extracts all relevant information including skills, education, and work experience to streamline the recruitment process.

FlutterPythonAI/MLCV ParsingHR Tech

View details

Stock Tracker

Inventory & Sales Production Reports

Business inventory management application with sales production reports (SPR) and offline-first architecture. Track stock levels, manage product catalogs, and generate detailed sales reports seamlessly even without internet connection. Powered by Supabase with real-time sync across devices.

FlutterSupabaseRealtime SyncOffline-FirstSPR/IPV

View details

Background

Education

Computer Engineer

Technological University of Havana

Havana, Cuba • 2019

Official Site QS Ranking

Spanish

Native

English

B2 Upper-Intermediate

Let's work together

Always open to new opportunities and interesting projects. Feel free to reach out!

LinkedIn GitHub