JavaScript (React, Typescript)/ Mashup Developer

For our Client, we are looking for an experienced JavaScript (React, Typescript) / Mashup Developer.

Location: Kraków – hybrid work model (2 days per week in the office, 3 days remote)
Cooperation model: Full-time / B2B
Project: Financial sector

Requirements

• 10+ years of experience on ReactJs 16.x or above
• Hands-on experience using AI tools (e.g. GitHub CoPilot, Claude) for development work
• Strong experience with TypeScript and ES6
• Strong experience with D3.js
• Strong experience with AG-Grid library
• Strong knowledge of React Hooks and React Redux (including middleware like thunk)
• Excellent knowledge of HTML5, CSS3, Bootstrap, including Media Queries
• Experience with Material-UI or other React-specific UI libraries
• Strong understanding of Enigma.js
• Strong understanding of WebSockets
• Strong understanding of integrating QlikSense API with React layer
• Experience with Qlik API integration
• Experience in unit testing using Jest and Enzyme
• Ability to build generic UI components
• Experience with Module Federation using Webpack
• Strong experience with Axios and fetch-like libraries for API calls
• Experience using Jira, Jenkins, Ansible for automated deployments
• Experience with GitHub or other source control and release software
• Experience in identifying and fixing security vulnerabilities in code
• Knowledge of MI reporting platforms
• Fluency in English (spoken and written)

Benefits

• Private medical care (Luxmed)
• Multisport card
• Collaborative team culture and modern tech stack