Roman Kopylov
Портфолио
GoLance
● Worked at RockPeaks flow.rockpeaks.com (React, Redux, Next.js, Reactstrap, Apollo GraphQL, NFT and Flow). ● Added a hot module replacement plugin to Webpack. ● Created custom UI library with styled components. ● Implemented GraphQL Data Loader for PostgreSQL tables to reduce DB load. ● Worked at CaZZZino dev.jinglebets.com (React, GraphQL, Typescript, Web3.js). ● Created pixel-perfect designs with styled components. ● Integrated a context API to handle application state. ● Developed a small React Native application (using Expo) as a proof of concept. ● Wrote a custom Rest Api library with Context API.
Dasera
● Developed and maintained responsive web applications using React.js, Material-UI, Syncfusion and TypeScript, resulting in improved user experience and increased client satisfaction. ● Integrated RESTful APIs and third-party libraries to enhance application features and functionalities, resulting in improved user engagement.
Leobit
● Worked with a team of five to develop and deploy a full-stack application in Vue, PHP/Laravel, and MySQL to AWS. ● Implemented features like email authentication, customization profiles, content search, posts, comments, likes, polls, notifications, inbox messaging, and account settings. ● Heavily involved in customer research and iterating on the product based on feedback.