Preferred Frontend Frameworks

React/Next.js/Gatsby/React Native/Flutter

Backend

express.js/Koa/Nest.js

Databases

PostgreSQL/MySQL/MongoDB

Languages

javascript (ES6+)/typescript/html5/css/scss/less

Methods & Tools

redux/graphql/rest/bem/npm/webpack/gulp/pwa (progressive web apps)/amp

Additional

git/docker/sketch/figma/jira/trello/scrum/agile