Senior Mobile App Developer (React Native / Flutter)

GenixBit Labs Pvt. Ltd.; Singapore; Hybrid; SGD 110,000 - 150,000; Full time

Job summary

Genixbit in Singapore is seeking a Senior Mobile Engineer to build high-performance cross-platform apps for iOS and Android using React Native or Flutter. You will implement smooth 60fps gesture animations, offline storage, and push notification pipelines to deliver a polished user experience.

You will optimize startup time, memory usage, and frame rates, and manage App Store & Google Play deployment builds and OTA updates.

Qualifications

• 4+ years mobile app development experience with React Native or Flutter.
• Solid track record of published mobile applications in App Store / Play Store.
• Deep understanding of mobile state management, native bridge calls, and push notifications.

Responsibilities

• Develop feature-rich React Native or Flutter mobile apps for iOS and Android
• Integrate native iOS (Swift) and Android (Kotlin) modules when needed
• Optimize app startup time, memory consumption, and frame rates
• Manage App Store & Google Play deployment builds and OTA update channels

Skills

React Native

Flutter

TypeScript

Swift

Kotlin

Push notifications

Tools

Firebase

Job description

Full-time Singapore Singapore Hybrid Senior $110,000 - $150,000 SGD / year Posted: Oct 28, 2026 · Closes: Nov 17, 2026

Share Job Card

Share this opportunity on LinkedIn, X, WhatsApp, or Facebook

About the Role

Build high-performance cross-platform iOS and Android mobile applications. Implement smooth 60fps gesture animations, offline storage, and push notification pipelines.

Key Responsibilities

• Develop feature-rich React Native or Flutter mobile apps for iOS and Android


• Integrate native iOS (Swift) and Android (Kotlin) modules when needed


• Optimize app startup time, memory consumption, and frame rates


• Manage App Store & Google Play deployment builds and OTA update channels

Requirements

• 4+ years mobile app development experience with React Native or Flutter


• Solid track record of published mobile applications in App Store / Play Store


• Deep understanding of mobile state management, native bridge calls, and push notifications


• Strong UI/UX design sensibility for iOS Human Interface Guidelines and Material 3

React Native Flutter TypeScript Swift Kotlin Firebase