Mobile Developer (Flutter/Dart) - AI-Driven Growth

WATI.io; Hong Kong; On-site; HKD 350,000 - 520,000; Full time

Job summary

Wati is seeking a Mobile Developer with 3-5 years of professional mobile development experience to build and improve our mobile applications for iOS and Android using Flutter and Dart.

You will collaborate with Product, Design, and Backend teams to deliver intuitive experiences that drive customer engagement and business growth, while leveraging AI coding tools to support development and ensure high code quality.

Qualifications

• 3-5 years of professional mobile development experience, including delivering production applications.
• Flutter and Dart experience preferred; strong native or hybrid/cross-platform developers willing to work with Flutter.
• Solid understanding of mobile architecture, state management, API integration, and application lifecycle.
• Experience with testing, debugging, Git, and mobile release workflows.
• Comfortable using AI coding tools, with the ability to review and validate generated code and take ownership of its quality.
• Ability to own features independently, collaborate effectively, and write clean, maintainable code.

Responsibilities

• Build and maintain Wati’s mobile applications for iOS and Android using Flutter and Dart.
• Own features from technical design through testing, release, and ongoing improvement.
• Collaborate with Product, Design, and Backend teams to deliver intuitive experiences that improve customer engagement and business growth.
• Use AI coding tools to support implementation, debugging, testing, and refactoring.
• Improve application performance, reliability, and code quality through testing and code reviews.

Skills

Flutter

Dart

Mobile development

API integration

Testing

Git

AI coding tools

Tools

Cursor

Codex

Claude Code

Job description

Wati is seeking a Mobile Developer with 3-5 years of professional mobile development experience to build and improve our mobile applications for iOS and Android using Flutter and Dart.

You will collaborate with Product, Design, and Backend teams to deliver intuitive experiences that drive customer engagement and business growth, while leveraging AI coding tools to support development and ensure high code quality.