UI Developer

About the job

Job Title : UI Developer Required Experience : 4–7 Years Experience Location : Noida, Dehradun – On-site (5 days / week) Employment Type : Full-time Job Summary We’re building a mission-critical analytics platform that processes millions of data points daily for thousands of professionals. The work you do will directly affect the speed, accuracy, and usability of a platform. This role is perfect for engineers who are already strong in modern front-end development and want to deepen their expertise in real-time systems, high-performance data visualization, and scalable architectures. What You’ll Do • Develop high-performance, responsive applications using React and TypeScript. • Implement real-time streaming using Server-Sent Events (SSE), WebSockets, and Pub / Sub messaging with fallback strategies. • Build data-rich visualizations with Apache ECharts, D3.js, or Highcharts. • Optimize UI performance for large-scale datasets and thousands of concurrent users. • Write and maintain unit, integration, and E2E tests. • Collaborate with designers, backend engineers, and product managers in an Agile environment. • Ensure accessibility compliance. • Debug, troubleshoot, and fix production issues. Must-Have Skills • React & TypeScript • JavaScript (ES6+) fundamentals • Data visualization libraries : Apache ECharts, D3.js, Highcharts, Chart.js, or Recharts • SSE, WebSockets, Pub / Sub messaging • SCSS / SASS, CSS Modules, or CSS-in-JS • State management • REST and GraphQL API integration • Performance optimization techniques • Accessibility best practices • Git-based workflow Preferred Skills • Experience in analytics and dashboards • Micro-frontend architectures (Webpack Module Federation, Single-SPA) • Component library creation and npm publishing • CI / CD pipelines, Docker • PWA development

Requirements

• React & TypeScript
• JavaScript (ES6+)
• Data visualization libraries
• SSE
• WebSockets
• Pub / Sub messaging
• SCSS / SASS
• State management
• REST and GraphQL API integration
• Performance optimization techniques
• Accessibility best practices
• Git-based workflow

Preferred Technologies

• React & TypeScript
• JavaScript (ES6+)
• Data visualization libraries
• SSE
• WebSockets
• Pub / Sub messaging
• SCSS / SASS
• State management
• REST and GraphQL API integration
• Performance optimization techniques
• Accessibility best practices
• Git-based workflow