D
Denys Levada
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Senior Frontend Engineer | React, TypeScript | UI/UX, Design Systems, Web Performance
Ukraine
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Jobs
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Senior Frontend EngineerCode.orgNov 2022 - Current (3 years 11 months)Developing design system (e.g. react-bootstrap), implementing redesigns for the whole application, helping different teams with launches of the new labs/student's activities, features. Main goal: Work on the Code.org rebrand initiative and develop a Code.org-wide design system. Key Responsibilities: ● Design System Development: Led the creation of a scalable React-based design system, developing 16+ reusable components and ensuring WCAG-compliant accessibility, improving UI consistency across 5+ teams and reducing design-related tech debt. ● Frontend Rebranding & Mo- React JS DeveloperBCD TripTechDec 2019 - Dec 2021 (2 years 1 month)Developing complex web application for international corporate booking of flights, hotels and cars for business trips (see tripsource.com) The application was previously written in Angular by other developers in other company and was receiving negative feedback from main office. The task of our team was to rewrite the application from scratch with React replacing Angular application step by step (Flights, Cars, Hotels) both for web application and native mobile applications (using webview). Technologies: React.JS, Typescript, Redux, Redux-Thunk, Jest, Axios, i18n. Responsibilities: implementing new features, discuss their architecture, performance
- React.JS DeveloperCodemotion NinjasFeb 2019 - Dec 2019 (11 months)Developing progressive web application for a tourism based booking market place. (Booking,com for sunbeds and watersports) Technologies: React, Redux, Sagas, Next.Js, Styled-Components. (Mostly stateless components and hooks api) Developing Electron app for sports analytics in hockey. (Gather and analyze all the game data through application) Technologies: Electron, React, Redux, Sagas, Reselect, Styled Components. Responsibilities: implementing new feature, discuss it's architecture, code review, perfomance optimizations. Show less
- Middle React JS DeveloperS-PROFeb 2018 - Feb 2019 (1 year 1 month)Developing social network for parents, mentoring junior front-end developers. Technologies: React JS, Next JS, Redux, Redux-Saga, Styled Components. Responsibilities: integration with back end, db, mobile app(React-Native), and third-party libraries; implementing new features; performance optimization; performing code review and refactoring; Mentoring junior front-end developers.
- LReact JS DeveloperLogic IT Solutions (LITS)Oct 2017 - Feb 2018 (5 months)Developing some projects from scratch to release, continue project development after other developers. Main technologies: React JS, Redux, GraphQL, Styled Components, Material UI, React DnD. Responsibilities: integration with back end, db and third-party libraries; implementing new features; creating ui elements; performance optimization; refactoring and reviewing code.
- Junior Front-end (React) DeveloperSednor Holdings LimitedOct 2016 - Oct 2017 (1 year 1 month)Developing flexible CRM analytics web application. (Flexible web analytics tool that provides insights and reports about visitors’ behavior on your websites.) Technologies: React JS, Reflux, React-Router, SCSS, Bootstrap, Gulp. Responsibilities: implementing new features, different APIs, refactoring and maintaining legacy code, performance optimization.
Education
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- Kharkiv National University of Radioelectronics — Master's degree, Systems EngineeringKharkiv National University of RadioelectronicsJan 2017 - Dec 2019 (3 years)
- H. S. Skovoroda Kharkiv National Pedagogical University — Bachelor's degree, Foreign philollogyH. S. Skovoroda Kharkiv National Pedagogical UniversityJan 2013 - Dec 2017 (5 years)