UI Developer

We are building a mission-critical analytics platform that processes millions of data points daily for thousands of professionals. This role plays a key part in delivering fast, accurate, and highly usable user interfaces. You will work on real-time systems, high-performance data visualization, and scalable front-end architectures.

Roles & Responsibilities

• Develop high-performance, responsive web applications using React and TypeScript
• Implement real-time data streaming using Server-Sent Events (SSE), WebSockets, and Pub/Sub messaging
• Build and maintain data-rich visualizations using libraries such as Apache ECharts, D3.js, Highcharts, or similar
• Optimize UI performance for large-scale datasets and high concurrent user loads
• Write and maintain unit, integration, and end-to-end tests
• Collaborate with designers, backend engineers, and product managers in an Agile environment
• Ensure accessibility compliance and best UI/UX practices
• Debug, troubleshoot, and resolve production issues

Must-Have Skills

• Strong experience with React & TypeScript
• Solid understanding of JavaScript (ES6+) fundamentals
• Experience with data visualization libraries (ECharts, D3.js, Highcharts, Chart.js, Recharts, etc.)
• Hands-on experience with SSE, WebSockets, and real-time messaging systems
• Proficiency in SCSS/SASS, CSS Modules, or CSS-in-JS
• Experience with state management solutions
• Strong knowledge of REST and GraphQL API integration
• UI performance optimization techniques
• Knowledge of accessibility standards and best practices
• Experience working with Git-based workflows

Preferred Skills

• Experience building analytics platforms or dashboards
• Knowledge of micro-frontend architectures (Webpack Module Federation, Single-SPA)
• Experience creating component libraries and publishing npm packages
• Familiarity with CI/CD pipelines and Docker
• Experience with Progressive Web Applications (PWA)