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Jakub Kłobus
Jakub Kłobus
Technical Development Lead

Software Developer working at Callstack since the very beginning. After mastering web, he moved to React Native. Responsible for leading Delivery Team and technical recruitment. A fan of leadership as a partnership.


I provide expertise in


  • Node.js
  • Hapi.js
  • Express
  • Sequelize
  • GraphQL
  • .NET
  • MySQL
  • PostgreSQL
  • MongoDB
  • Elixir


  • JS (ES5, ES6, ES7)
  • React
  • MobX
  • Redux
  • Apollo
  • Relay
  • Bucklescript/ReScript
  • React Native Web


  • React Native
  • ObjectiveC
  • Android (Java, Kotlin)
  • Reason React Native


  • Babel
  • Webpack
  • ReasonML
  • Typescript
  • Jest

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