JavaScript / Mashup Developer

Summary: We are seeking a highly experienced Mashup Developer with a minimum of 10 years of expertise in ReactJS (16.x or above). The ideal candidate must demonstrate strong proficiency in Typescript, ES6, and AI tools such as GitHub Copilot. A solid foundation in D3.js, AG-Grid, and integrating Qliksense API with React is crucial. This role demands innovative problem-solving skills and the ability to create user-friendly interfaces.

What we offer:

• Hybrid 6 days ( flexible) from Warszawa or Kraków

• Rate: 180 PLN/ H + VAT

• B2B Contract

Main Responsibilities:

• Develop robust applications using ReactJS and integrating various components.

• Utilize AI tools for efficient development and coding practices.

• Implement state management using React Redux and middleware.

• Construct generic UI components for various applications.

• Integrate Qliksense API with the React layer seamlessly.

• Ensure high-quality code through unit testing frameworks.

• Work collaboratively in an Agile environment utilizing tools like Jira and Jenkins.

• Identify and address security vulnerabilities in the code.

Key Requirements:

• Minimum 10 years of experience in ReactJS (16.x or above).

• Hands-on experience with AI developer tools (e.g., GitHub Copilot).

• Strong expertise in Typescript and ES6.

• Experience with D3.js and AG-Grid.

• Solid knowledge of React Hooks and Redux.

• Proficient in HTML5, CSS3, and Bootstrap with media query exposure.

• Strong understanding of Material-UI or similar React UI libraries.

• Experience with Websockets and Enigma JS.

• Familiarity with Qlik API integration.

• Experience with unit testing using Jest and Enzyme.

Nice to Have:

• Experience with Axios and Fetch for API calls.

• Exposure to Module Federation using Webpack.

• Knowledge in utilising Jira, Jenkins, and Ansible for automated deployments.

• Familiarity with security vulnerability identification and remediation.

• Understanding of MI reporting platforms.