- Built features related to season promotions which are shown on specific dates of the year or should be only seen by particular groups of users, most of these features used feature flags to handle when they should be shown or not. To implement these features I've used React Native, Typescript, Graphql, Storybook, jest, Detox, Redux, Zustand, Flipper;- Documented our release process (describing our integration between GitLab, Bitrise, stores, Microsoft app center, and possible… Show more - Built features related to season promotions which are shown on specific dates of the year or should be only seen by particular groups of users, most of these features used feature flags to handle when they should be shown or not. To implement these features I've used React Native, Typescript, Graphql, Storybook, jest, Detox, Redux, Zustand, Flipper;- Documented our release process (describing our integration between GitLab, Bitrise, stores, Microsoft app center, and possible troubleshooting) and using Jira confluence which makes new team developers more secure with our release process (because now they have a single step-by-step to follow).- Improve our app security by implementing mobile security patterns: Recaptcha for sign-in, password strength for sign-up, two-factor authentication, and others, which resulted in a downgrade of hacking success, try, also a lot of good reviews on stores and compliments of our users mainly our biggest clients.- Improved our app rate in stores by implementing In-app review for specific momento of use in our app flow which was reflected in the increase in good review numbers, and number of users for both platforms (which consequently increased our revenue);- Replaced our old platform for app monitoring (OneSignal) for sentry that was cheaper, has better developer experience, and improves our bug track a lot of times.- Increased our unit coverage from 42% to 74% which makes our development more secure and professional.- Revive e2e tests after more than a year of not being used, fixing platform-specific problems, and updating to our current behaviors. This resulted in a full e2e test coverage of our most critical flows for both platforms. Show less

- Development of features related to performance improvements, that improve product list loading and PDP information;- Development of frontend features for seasonal promotions, that were seen on the app and converted new sales every different season;- Development of E2E and Unit tests that improve software quality and all app review processes;- Development of all setup for an app related to the pharmaceutical industry using, React Native, graphql, jest, detox, Zustand… Show more - Development of features related to performance improvements, that improve product list loading and PDP information;- Development of frontend features for seasonal promotions, that were seen on the app and converted new sales every different season;- Development of E2E and Unit tests that improve software quality and all app review processes;- Development of all setup for an app related to the pharmaceutical industry using, React Native, graphql, jest, detox, Zustand, make, storybook, reanimated;- Development of features for animal industry app using firestore, and react native for web, android and iOS;- Development of features related to performance improvement; Show less

- Development of all frontend implementation for kids mode on Globoplay Smartv app, one of the main streaming apps in Brazil, using React Native, Redux and context api, which can be seen now;- Development of features related to performance improvements, that improve list video loading time and was tracked for track platforms.- Update of track event methods to use Firebase;

- Development of an application for time company collaborator's time management using ReactJS, NodeJS, and Sequelize that was used for all employees;- Development of software for machine control;