JavaScript (React, Typescript)/ Mashup Developer

The client is from the financial sector and the role involves working in Kraków with a hybrid work model: 2 days per week in the office and 3 days remote.

• 10+ years experience with ReactJs 16.x or above
• Strong experience with TypeScript and ES6
• Hands-on experience using AI tools like GitHub CoPilot and Claude
• Strong experience with D3.js and AG-Grid Library
• Excellent knowledge of HTML5, CSS3, Bootstrap, including Media Query
• Experience working with Material-UI or similar React UI libraries
• Strong understanding of Enigma Js
• Experience in Qlik API integration is good to have
• Experience using Jira, Jenkins, and Ansible for CI/CD
• Experience with security vulnerability identification and mitigation
• Fluency in English (spoken and written)

• Develop UI components using React Hooks, React Redux, and middleware like thunk
• Integrate Qliksense API with the React layer
• Work with WebSocket technologies
• Use Axios and fetch for API calls
• Implement Unit testing using Jest and Enzyme
• Use Module Federation with Webpack
• Identify and fix security vulnerabilities in code
• Use Jira, Jenkins, and Ansible for automated deployments
• Manage source code and releases using GitHub or similar tools