? Design & implement new app modules based on the product requirements using Flutter framework ? Maintain existing codebases? Build reusable code and libraries for future use? Integrate user-interfaces elements developed by other developers? Build user interfaces designed by UI/UX designers? Integration of data storage solutions? Integrate various APIs from third parties? Debug existing apps components, fix issues and avoid regressions? Collaborate closely with the teams of UI/UX designers, and other developers and optimize application for maximum speed and scalability? Follow the company guidelines and best practices? Work with outside data sources and APIs.? Worked on Dart.js? Unit-test code for robustness, including edge cases, usability, and general reliability