1. Full-time undergraduate degree or above in computer and related majors

2. More than 5 years of Android development experience, proficient in Java/Kotlin language;

3. Have good architecture and interface design capabilities, understand object-oriented design and design patterns, and be able to implement reusable components with high quality; 

4. Familiar with performance optimization, familiar with underlying principles such as Android framework, multi-threading, data storage, network communication, etc.;

5. Have strong ability to analyze and solve problems, learn quickly, withstand pressure, and communicate and collaborate;

6. Applicants with experience in large-scale IM systems, social/community APPs, and first-line Internet product development will be given priority;

7. Applicants with development experience in large-scale project performance optimization, engineering efficiency optimization, cross-platform solutions, etc. will be given priority;

8. Be familiar with one or more third-party source codes. You need to be familiar with and understand design patterns and Android source codes.