SENIOR FRONTEND DEVELOPER

Senior Front-end Developer

The main activities for this position are:
1. Write client-side code JavaScript to get, manipulate and update data from/to Web Services for Digital Tools and Platforms websites and applications using REST and WebSocket APIs.
2. Develop front end applications using React, React hooks, Redux, Redux/sagas and Material UI 3. Develop visualizations using D3.js, nivo, plotly and other visualization frameworks. 4. Develop mobile applications using React Native. 5. Convert into HTML/CSS image mockups into live prototypes. 6. Review, comment and approve pull requests and deploy them into the different organization environments. 7. Troubleshoot, fix and perform quality assurance of frontend components as well as the functionality of the custom applications, including responding to Service Gateway incidents. 8. Assist in the development and documentation of design system. 9. Assist in the development and documentation of front-end team standards and base code. 10. Participate in Agile/Scrum Ceremonies and assist in the estimation of task effort. 11. Perform manipulation and optimization of graphic resources for our websites and applications. 12. Other web design/development-related tasks, as requested by the unit manager or section.

The skills and experience required for this position are:
8+ years of experience in front-end development for web applications using modern JavaScript/TypeScript.
4+ years of experience with Next.js, including SSR (Server-Side Rendering), SSG (Static Site Generation), and API routes. Strong understanding of React.js fundamentals, including hooks, context API, and component lifecycle. Experience implementing secure frontend practices, including input validation, XSS/CSRF prevention, and secure authentication flows. Proficiency in OAuth2/OpenID Connect flows, integrating with backend services for secure user authentication and authorization. Integration with Microsoft Entra ID as an Identity Provider (IdP) is required. Strong commitment to unit and integration testing using tools like Jest, React Testing Library, or Playwright. Experience with state management libraries such as Redux or Zustand. Solid understanding of RESTful APIs , including client-side data fetching and caching strategies. Familiarity with CI/CD pipelines for front-end deployment using GitHub Actions or Azure DevOps. Experience with responsive design and cross-browser compatibility, using CSS-in-JS (e.g., styled-components, Emotion) or utility-first frameworks like Tailwind CSS. Working knowledge of Docker for local development and containerized frontend builds. Experience collaborating in distributed teams using Git (Azure DevOps preferred).