João Portugal

I started my journey at a startup where I had the opportunity to participate in the creation of systems almost entirely from scratch — from mobile apps in React Native to full web platforms for IoT monitoring. I work primarily with TypeScript, Next.js, Node.js, and PostgreSQL, applying modern architectural practices like Clean Architecture, Domain-Driven Design (DDD), and Ports & Adapters. One of my key achievements was leading the architecture and development of a multi-tenant IoT monitoring platform used in healthcare environments. The system automates temperature and humidity tracking through connected sensors, generates regulatory reports, and offers real-time dashboards — replacing a previously manual, error-prone workflow. Another highlight was leading the development of a React Native mobile app that allows users to configure IoT devices via Bluetooth, with automatic MQTT connection. This innovation enabled clients to complete installations autonomously, reducing technical support needs and saving up to $100 per device installed. My goal is to join a team where I can contribute with technical excellence, learn from diverse professionals, and build scalable, robust products with real impact. Oh — and here's something not so obvious: my background as a professional musician gave me discipline, sensitivity, and a sharp ability to listen — skills I bring into every project and team I work with. If you're looking for someone who blends technical knowledge with adaptability and a hands-on mindset — let's connect!

• Programming Paradigms
• React with Tailwind CSS
• Mac OS Terminal
• n8n Overview
• React Native
• React Native Fundamentals
• EAD Project
• Use Case
• Clean Architecture and DDD Project
• React with Tailwind CSS
• Domain Modeling
• Clean and Hexagonal Architecture
• First Fullstack Application
• MacOS Terminal
• Prisma and Database
• Relational Database

• Getting Started with JavaScript, v2
• JavaScript: From First Steps to Professional
• TypeScript 5 Fundamentals, v2

• HTML and CSS: Practicing HTML/CSS
• Responsive Layouts: Working with Mobile Layouts
• WordPress: Building Sites with Elementor
• HTTP: Understanding the Web Under the Hood
• Node.js: REST API with Express and MongoDB
• React: Developing with JavaScript
• React: How Components Work
• React: Migrating to TypeScript
• TypeScript Part 1: Advancing Your JavaScript
• UML: Modeling Solutions
• Figma – Designing Your Mobile Site Layout
• UX: Understanding the User Experience
• Node.js: Creating Your First Library
• JavaScript I: Sorting Algorithms
• Networking: From Basic Concepts to Building an Intranet

• Full Stack Python Developer Career Program