Principal Flutter Engineer

As a Principal Flutter Engineer at Bybit, you design and drive the architecture of our core mobile applications (iOS and Android) for one of the world's leading cryptocurrency exchanges, serving over 80 million users. You work across the full mobile stack, from Flutter UI optimization to native platform integration, ensuring high-quality product delivery and seamless user experiences at global scale.

What you'll do

• Design architecture and drive business feature development and iteration for our core mobile applications (iOS and Android), ensuring high-quality product delivery
• Work closely with Product Managers and UI/UX designers to accurately implement design mockups and deliver a premium, smooth user interaction experience
• Lead Flutter-side performance optimization initiatives, such as rendering frame rate improvement, app size reduction, and memory leak troubleshooting, to enhance overall app stability and loading speed
• Independently handle hybrid development between Flutter and Native (iOS/Android) for specific business scenarios, and package and maintain custom plugins
• Participate in code reviews, write high-quality maintainable code, and drive mobile engineering best practices across the team

What you bring

• Deep understanding of Dart language features, proficiency in Flutter UI rendering mechanisms, Widget lifecycle, and various UI components
• Solid experience with mainstream Flutter state management solutions such as Provider, BLoC, Riverpod, or GetX
• Familiarity with Android (Java/Kotlin) or iOS (Objective-C/Swift) native development, with the ability to write Platform Channels effectively
• Proficiency with version control tools such as Git, strong communication skills, and a collaborative mindset with a genuine curiosity for emerging technologies

What we offer

• Study Growth Fund to support your professional development and continuous learning
• Regular team-building activities, workshops, and internal events designed to promote collaboration and innovation
• Global collaboration as part of a diverse, international team
• Career advancement opportunities within a rapidly expanding global company
• Internal mobility and long-term career development support

About Bybit

Bybit is one of the world's leading cryptocurrency exchanges and digital financial platforms, established in 2018 and serving over 80 million users across more than 200 countries and regions. The company builds a seamless ecosystem spanning trading, payments, wealth management, custody, institutional services, and Web3, recognized as one of the most trusted and transparent platforms in the digital asset industry.