Senior Mobile App Developer (React Native / Flutter)

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

Job summary

GenixBit Labs Pvt. Ltd. in Singapore is seeking a Senior Mobile Developer to build high-performance cross-platform apps for iOS and Android, delivering smooth 60fps animations, offline storage, and push notification pipelines.

You will work with React Native or Flutter, integrate native modules (Swift/Kotlin) when needed, and optimize startup time, memory, and frame rates. This role requires a track record of published apps in App Store and Play Store, plus strong UI/UX sensibility aligned with

Qualifications

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

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

Mobile app development

React Native

Flutter

Swift

Kotlin

UI/UX design

Performance optimization

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