Oleh S.

12+ years of commercial experience, using: - React, Next.js, React Native, Redux, Angular.js, Backbone.js, Javascript, Typescript - Node.js, Express.js, Puppeteer, Strapi admin - Google Tag Manager, Google Apps scripts, Google Analytics - CSS, Less, Sass, Bootstrap, Tailwind - HTML5 - AWS EC2, NGINX Throughout my career, I have developed numerous web applications for clients from USA, Germany, France, Netherlands, Belgium, South Africa, South Korea, Canada and United Kingdom. These were mostly e-commerce, ed-tech and logistics projects. Over these years, I: - Developed multi-language Next.js applications based on next-intl library - Developed multi-language React application based on i18next and Phrase (PhraseApp) as translation management platform. - Transitioned React project from ES6 to Typescript. - Transitioned production website from outdated AngularJS to React, without any effect for users. - Have developed, published and supported in production multi-language React Native application for international ed-tech marketplace (now it has over 100K+ installs on Google Play and Appstore). - Conducted over 100 Front-end A/B tests that helped my clients to improve their revenue conversion and users experience. This had really huge effect. I'm very proud of this numbers. - Implemented PDF parsing tool with NodeJS. Website uses it for SEO till now. - Implemented PDF document generation tool with Puppeteer - Implemented html-processing service based on NodeJS (Express) - Implemented comples video-merging tool with Node.js utilizing AWS EC2 & S3 - Set up Google Tag Manager with Google analytics and other analytics tools - Worked with UI/UX teams in Zepplin and Figma. - Worked with Bitbucket, Gitlab and Github - Worked with Jira and Trello as issue tracking tools Look forward to discussing how I can contribute to your project. Ready to start right away