Frontend Engineer

Quest Global; Bengaluru; On-site; INR 900,000 - 1,300,000; Full time

Job summary

Quest Global in Bengaluru is seeking a Senior Frontend Engineer to build high-performance, real-time web experiences for streaming and interactive workflows. You will focus on responsive UI, low-latency interactions, and robust behaviour under varying network conditions.

You will implement real-time features with React, WebRTC integration, and telemetry to support production diagnostics, collaborating with backend teams to ensure scalable, accessible components and a cohesive user experience.

Qualifications

• 6–10 years of frontend engineering with modern React.
• Strong React expertise in state management and performance profiling.
• Experience building real-time/interactive web apps with live updates.
• Comfortable debugging complex client issues (browser APIs, media devices, permissions).
• Strong testing discipline (unit/integration/e2e as appropriate).

Responsibilities

• Develop and maintain real-time web apps using React.
• Implement real-time features: video/audio rendering, screen share, chat, annotations, and remote interaction controls.
• Integrate with WebRTC clients and signalling flows; handle reconnection, device selection, and user permissions.
• Optimise for performance: render efficiency, memory usage, frame rate stability, and startup time.
• Build accessible, maintainable component architectures and consistent UX patterns.
• Collaborate with backend/WebRTC teams on APIs, events, and session lifecycle.
• Implement telemetry and client-side logging to support production diagnostics.

Skills

React

Real-time UI

WebRTC frontend

Performance optimization

Testing

Tools

WebRTC

Canvas/WebGL

Job description

Job Requirements

Role Summary

Senior frontend engineer building high-performance, real-time web experiences for streaming and interactive workflows. The role focuses on responsive UI, low-latency interactions, and robust behaviour under variable network and device conditions.

Key Responsibilities

• Develop and maintain real-time web applications using React (or comparable modern framework)


• Implement real-time features: video/audio rendering, screen share, chat, annotations, and remote interaction controls


• Integrate with WebRTC clients and signalling flows; handle reconnection, device selection, and user permissions


• Optimise for performance: render efficiency, memory usage, frame rate stability, and startup time


• Build accessible, maintainable component architectures and consistent UX patterns


• Collaborate with backend/WebRTC teams on APIs, events, and session lifecycle


• Implement telemetry and client-side logging to support production diagnostics

Work Experience

Must-have Skills & Experience

• 6–10 years in frontend engineering with modern React


• Strong React expertise (state management, performance profiling, component architecture)


• Experience building real-time/interactive web apps (streaming, collaboration, dashboards with live updates)


• Comfortable debugging complex client issues (browser APIs, media devices, permissions)


• Strong testing discipline (unit/integration/e2e as appropriate)

Good-to-have / Bonus

• WebRTC integration experience on the frontend (media tracks, device APIs, reconnection)


• Experience with Canvas/WebGL for overlays/annotations


• Experience designing UX for low-latency control/feedback loops


• Knowledge of observability tooling (client metrics, logging pipelines)