Mid-senior Frontend developer

Education:
- Bachelor's degree or equivalent in Computer Science, Software Engineering, Information Technology, or related technical field.
- A Master's degree is an advantage.

Core React & general Front-End skills (Must-Have):

• 4+ years of professional experience with React (v16+).
• Strong proficiency with both class components and modern functional components using hooks.
• Experience migrating class-based components to functional patterns.
• Ability to design and maintain custom hooks for reusable logic.
• Solid experience with the React Context API + useReducer for state management.
• Ability to structure multiple context providers and optimize components to prevent unnecessary re-renders.
• Excellent ES6+ fundamentals, including async/await, promises, modules, array methods, and destructuring.
• Strong debugging, problem-solving, and code-organization skills.
• Experience developing in a Linux environment.
• Familiarity with Git-based workflows (GitLab/GitHub) and collaboration tools (Teams, Slack, etc.).
• Comfortable working in agile development environments.

UI & Front-End Skills (Must have):

• Experience with Material-UI (MUI v4), including custom theming and component styling
• Strong knowledge of Styled Components.
• Solid understanding of responsive design and component-driven UI architecture.

API & Data Handling:

• Hands-on experience integrating REST APIs using Axios or similar libraries.
• Experience working with Django REST Framework backends is a strong plus.
• Ability to manage data transformation, error handling, and robust API workflows.
• Experience handling files such as CSV, Excel, GeoJSON, and Shapefiles.

GIS/Mapping Experience (desirable):

• OpenLayers and Cesium experience (our primary 2D mapping library).
• Understanding of geospatial concepts (Coordinate systems and projections, Vector vs raster data, Feature rendering and styling)
• or similar geospatial analysis libraries.
• Experience with WMS/WFS services.
• If no GIS experience: you must have a strong willingness to learn geospatial concepts and work with mapping libraries.

Additional Skills:

• Experience with authentication flows (token-based auth, 2FA)
• Familiarity with error handling patterns and user feedback best practices
• Experience with internationalization frameworks (e.g., i18next)
• Knowledge of build tools such as Create React App or Webpack
• Understanding of code-quality tooling (ESLint, Prettier, pre-commit hooks)
• experience for interactive data visualization (nice to have)

Mindset & Working Style:

• Strong sense of ownership and ability to work independently on complex features
• Proactive problem-solving attitude and comfort navigating technical challenges
• Adaptable and eager to learn new technologies (including GIS concepts when needed)
• High attention to detail, especially when working on components used in critical infrastructure workflows
• Committed to continuous learning and staying current with modern React best practices
• Collaborative team player who contributes constructively to technical direction and code reviews

Responsibilities:

• Implement new features and UI enhancements across the application.
• Migrate legacy React class components to modern functional components using hooks.
• Collaborate with the front-end lead on architectural decisions and technical direction.
• Refactor large or complex components to improve performance, maintainability, and clarity.
• Integrate front-end features with Django REST APIs, including authentication and error handling.
• Debug and resolve issues across the codebase, including production defects.
• Contribute to high-quality documentation for complex features, workflows, and architectural patterns.
• Participate actively in code reviews, providing constructive feedback.