Lead Frontend Developer – React Native & Real-Time Systems

Winzons; India; On-site; INR 1,800,000 - 2,400,000; Full time

Job summary

PinnacleU in Bangalore seeks a Frontend Tech Lead to own and scale the React Native frontend, delivering real-time user experiences and robust WebSocket-based flows. You will oversee architecture, performance, and reliability across Android and iOS, driving end-to-end frontend decisions.

Lead the real-time frontend system, mentor engineers, and collaborate with backend and product teams to set standards and ensure high-quality, scalable frontend solutions.

Qualifications

• 4-5 years of frontend experience with ownership mindset.
• Deep experience with React Native in production apps.
• Hands-on experience building real-time systems using WebSockets.
• Strong understanding of Android and iOS internals.

Responsibilities

• Lead frontend architecture for a real-time, multiplayer system.
• Build and optimize WebSocket-heavy flows (live games, matchmaking, events).
• Own performance, latency, and UI consistency across Android, iOS, and Web.
• Design state management for real-time updates and edge cases.
• Debug complex production issues across devices and OS versions.
• Work closely with backend and product teams on system design.
• Set best practices, code standards, and review frontend PRs.
• Mentor frontend engineers and help them grow.

Skills

React Native

WebSockets

Frontend architecture

Performance optimization

Mentoring

Education

Bachelor's Degree in Computer Science

Tools

Expo

WebRTC

Job description

Company Name: PinnacleU

Job Role: Frontend Tech Lead

Work Type: Full-Time

Experience: 4-5 Years (Frontend + Leadership Exposure Preferred)

Qualification: Bachelor’s Degree in Computer Science or related field

Location: Bangalore

Role Overview

We are looking for a Frontend Tech Lead who can own and scale our React Native frontend. You will design and build real-time user experiences, handle WebSocket-based systems, and deeply understand how things work on Android and iOS at the infra level.

You will take end-to-end ownership of frontend architecture, performance, and reliability.

Responsibilities

• Lead frontend architecture for a real-time, multiplayer system
• Build and optimize WebSocket-heavy flows (live games, matchmaking, events)
• Own performance, latency, and UI consistency across Android, iOS, and Web
• Design state management for real-time updates and edge cases
• Debug complex production issues across devices and OS versions
• Work closely with backend and product teams on system design
• Set best practices, code standards, and review frontend PRs
• Mentor frontend engineers and help them grow

Requirements

• 4-5 years of frontend experience with strong ownership mindset
• Deep experience with React Native (production apps, not demos)
• Hands-on experience building real-time systems using WebSockets
• Strong understanding of Android and iOS internals (threads, memory, lifecycle, background behavior)
• Experience handling performance issues, re-renders, and frame drops
• Good understanding of networking, retries, reconnection logic, and edge cases
• Experience with animations, gestures, and high-FPS UI is a big plus

Good to Have

• Experience building consumer apps with live interactions
• Experience with Expo, EAS, or native modules
• Familiarity with WebRTC, sockets, or real-time gaming systems
• Past experience as a tech lead or owning a large frontend system