Denys Provodnikov Email & Phone Number

Kyiv City, Ukraine

- Participated in the migration of legacy backend-rendered pages to a modern React SPA.- Took full responsibility for developing a new built-in chat application using RocketChat API, from initial design to production rollout, including front-end architecture and the initial version of UI/UX.- Successfully rolled out the chat feature to 100% of target users.- Utilized a technology stack including TypeScript, React, SCSS Modules, Tailwind, Webpack, Jest, and React Testing Library.- Managed code and CI/CD pipelines with GitHub; used JIRA for task management.

Kyiv City, Ukraine

Worked on two projects for the same customer, focusing on modernizing and enhancing performance.Project 1:- Participated in a legacy system migration from jQuery to a modern SPA with React and Redux.- Achieved significant performance improvements in critical areas.- Introduced unit testing and improved client-side code verification practices.- Refactored the system's core, significantly reducing the codebase.- Conducted onboarding sessions for newcomers and mentored junior/middle developers.- Worked with jQuery, React, Redux, Webpack, and Jest.Project 2:- Developed a new client-side application for an existing e-commerce system, from estimation to production.- Led the development from scratch and designed the front-end application core with SOLID principles in mind.- Maintained high code coverage for application logic.- Worked with TypeScript, React, Redux + XState, Webpack, and Jest.

Poltava Region, Ukraine

- Designed, developed and maintained javascript applications- Helped junior front-end developers to grow professionally- Participated in forming best practices for building javascript projects- Developed and published libraries and packages to open-source (npm, github)- Participated in designing UI/UX for internal projectsMain technology stack: React/Redux/MobX/Electron/Webpack/Jest/Enzyme