João Dias Barbosa

An employment-oriented social network targeted at the central Europe market.

Throughout this engagement, I built a new module that held a set of fenced features that would enhance the user's job search by defining an accurate set of criteria. The development was done using UIkit and SwiftUI, following the MVVM-C pattern, handling data via GraphQL. It was supported by extensive unit testing (XCTest), UI testing, and end-to-end testing (Calabash).

White-label iOS-based platform that held multiple clienteling apps for different fashion brands to be used by sales assistants inside stores.

An iOS/Android app that provides a deeper engagement between users and music festivals by integrating features like interactive maps, schedule data, and music discovery tools.

An iOS peer-to-peer payments app. Cashtag was a 2013 Seedcamp winner.
On this engagement, I have built the iOS app and its back end using the Django Rest framework. I was also responsible for implementing push notifications.

A financial guidance app that provided chat-based and telephone consulting sessions with financial experts.

In this engagement, I worked on chat features through an integration with the Salesforce Chat SDK and MessageKit. I refactored the app’s high-level architecture and navigation and built its integration with Auth0 to handle authentication. Finally, I fixed several bugs related to Salesforce chat events and the chat’s working hours and availability.

White-label Android/iOS app to create wall decorations by allowing the user to select different frames from a wide range of available layouts that could hold pieces of art or personal photos.

An interactive game for couples to enhance their intimate relationship through a variety of challenges. I have built the iOS app from the ground up using SwiftUI and Combine following the MVVM pattern.

An iOS object tracker app that locates external devices via Bluetooth.
Integrated with Parse Android lib, REST API, and cloud functions. It used a push notification service and geolocation queries. I was responsible for building the iOS app from the ground up and integrating it with the Parse SDK to connect with cloud functions.

An Android object tracker app that locates external devices via Bluetooth.
Integrated with Parse Android lib, REST API, and cloud functions. It used a push notification service and geolocation queries. I was responsible to build the Android app from the ground up and integrate with Parse SDK to connect with cloud functions.

An iOS journaling app to store pictures and notes and share them with friends and family. Throughout this engagement, I was responsible for building the iOS app and the back-end code built using Django Rest framework.

An iOS journaling app to store pictures, videos, and notes of children to be shared with friends and family.

An Android app where users can create checkpoint-based racing tracks and compete with other users.

A JavaScript-based engine that generates statistical visualization methods fitting the respective data types, built for an iOS app.

An iOS app for the leading online marketplace in developing countries. I implemented the new design and built flexible custom interface components that could be reused through all the apps according to a schema delivered via an API.

A healthcare workflow application for clinicians and administrators. Using iBeacons to track the user's location, its main purpose is to capture the interplay of key resources in the context of patient encounters and also giving clinicians a more upgraded insight into the patient's current state.