Backend DeveloperDeep knowledge in GraphQL, microservices and one of:a) NodeJS - Express.JS frameworkb) Java – Spring (core, data, security, REST), SpringbootGood knowledge on SQL (e.g. PostgreSQL), NoSQL (e.g. Cassandra etc.), Cloud conceptsFrontend - Deep knowledge in ReactReactJS concepts - hooks, redux, etc.MFA (Micro frontend Architecture), Webpack bundler, Babel transpilerBe able to work on both frontend and backend - at least with a 60%-40% ratioGood to have skills: Angular, Vue.