Fernando – Flutter, Dart, OpenAI

A cross-platform sports prediction application for the 2026 FIFA World Cup, enabling users to predict match outcomes, compete in private leagues, and track their performance through global rankings across Android, iOS, and web.

• Designed and developed a cross-platform sports prediction application for Android, iOS, and web;
• Implemented Clean Architecture with feature-based vertical slices covering authentication, matches, predictions, leagues, and rankings;
• Developed application state management using BLoC/Cubit, navigation with go_router, and dependency injection with get_it;
• Built serverless backend functionality using TypeScript and Firebase Cloud Functions for prediction scoring, league management, and real-time ranking synchronization;
• Integrated Firebase Authentication, Cloud Firestore security rules, Storage, Analytics, and Hosting;
• Configured staging and production environments and implemented internationalization to support multiple languages;
• Established AI-assisted development workflows using version-controlled product specifications and architectural guidelines;
• Integrated Google AdMob to support in-app advertising and monetization.

Training ecosystem for sport climbing with a mobile app for athletes and a web dashboard for coaches.

• Delivered end-to-end development of a platform for athlete management and progress tracking;
• Built a Flutter mobile app for iOS and Android for student workout logging and progress tracking;
• Built an independent Flutter Web admin dashboard for coaches to manage users, routines, and metrics;
• Implemented BLoC/Cubit for predictable and decoupled state management;
• Applied Clean Architecture organized by layers and features;
• Leveraged Firebase, Firestore, Auth, Cloud Functions, and push notifications for backend and infrastructure;
• Applied SOLID principles and clean code practices to improve maintainability and scalability.

A mobile property management solution designed to streamline building and residential community management, supporting communication and coordination between property managers and residents.

• Led the integral refactor and ongoing development of the mobile application;
• Migrated a legacy codebase to Clean Architecture to improve maintainability and scalability;
• Implemented Riverpod for reactive, testable, and modular state management;
• Integrated the ChatGPT API to deliver a real-time translation system supporting 11 languages;
• Redesigned and implemented a new user interface focused on usability and performance;
• Consumed and optimized REST API services for backend communication;
• Applied SOLID principles and clean code practices to reduce technical debt.

A Flutter-based content management system for a digital healthcare platform focused on supporting maternal and child health and well-being through holistic care solutions.

• Designed and developed a content management system using Flutter;
• Implemented MVVM and Clean Architecture principles with BLoC/Cubit for state management;
• Developed audio and image upload functionality for content management;
• Integrated an HTML editor for creating and editing content;
• Integrated REST APIs and implemented JWT-based authentication.

An Android mobile application enabling users to communicate with and control a robot via Bluetooth, configure its Wi-Fi connectivity, monitor real-time information, and access usage statistics.

• Developed an Android mobile application enabling Bluetooth communication with a robot;
• Implemented real-time data exchange between the application and the robot;
• Developed user authentication and login functionality;
• Implemented robot Wi-Fi configuration through the mobile application;
• Developed functionality for sending control commands to the robot via Bluetooth;
• Implemented usage statistics tracking and visualization;
• Delivered the Android application.

A cross-platform Android and web application used by over 10,000 employees of a major European sports retailer, providing role-based functionality, secure access, and integrated cloud services.

• Developed the frontend for Android and web applications using Flutter;
• Built and integrated backend functionality using Firebase, including Cloud Firestore, Authentication, Storage, and Cloud Functions;
• Implemented image selection and photo capture functionality;
• Developed role-based user experiences and customizable light and dark themes;
• Configured and maintained separate development and production environments;
• Contributed to delivering a secure application that passed an external penetration test without serious findings during the initial assessment.