maksimlipenka

Implementation of mobile app builder platform from scratch with React and Puppeteer.js (Scrapper service to display user-defined sites by url with possibility to change styles, javascript, add top and bottom bars with working navigation). Working on separate analytics platform for both web & mobile apps using Next.js. Implementation of various charts with highcharts and recharts. Implementation of multilanguage and dark theme systems. Reimplementation of complicated legacy custom navigation to regular react router. Migration of state management from Redux to React Query, simplifying data fetching and reducing unnecessary code for most parts of the project. Development of various workflows by best practices. Creation of custom components. Reviewing other developers code quality. Working on creating technical epics for translation of business requirements into technical Jira tickets, ensuring clear task definitions and smooth sprint planning. Collaboration on the creation and maintenance of technical documentation for web & mobile applications. Delivery the mobile app to app store and play market.

Successfully upgraded core libraries (React v15 to v17, Webpack v3 to v5 & webpack loaders, axios, babel, moment, lodash). Fixed all compatibility issues while maintaining backward compatibility. Reduced bundle size by optimizing dependencies and build config.

Development of various workflows by best practices. Migrate expo app to bare react native. Merge 2 react native applications into one. Redesign of the application. Creation of custom animated components. Development of notifications center with push notifications. Creation of background geolocation service for tracking users. Covering the application with unit tests. Reviewing other developers code quality. Delivery the app to play market and app store.

Development of various workflows by best practices. Solving non-trivial problems associated with storing and updating an up-to-date list of the world's airports. Implementing Stripe payments. Covering the application with unit tests.

Developing a cleaning platform using React, Express.js, MongoDB.