Senior Mobile App Developer (React Native / Flutter)

Genixbit; Singapore; Hybrid; SGD 110,000 - 150,000; Full time

Job summary

Genixbit in Singapore seeks a Senior mobile developer to build high-performance cross-platform apps for iOS and Android. You will implement smooth 60fps gesture animations, offline storage, and push notification pipelines.

Responsibilities include developing feature-rich React Native or Flutter apps, integrating native Swift and Kotlin modules when needed, and optimizing startup time, memory, and frame rates while managing deployment builds for App Store and Google Play.

Qualifications

• 4+ years of mobile app development experience with React Native or Flutter.
• Published mobile apps on App Store and Google Play.
• 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.

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

Mobile app development

UI/UX design

Job description

Full-time Singapore Singapore Hybrid Senior $110,000 - $150,000 SGD / year Posted: Sep 13, 2026 · Closes: Oct 3, 2026

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