Senior Java & Frontend Devs Needed

I need senior developers for a software upgrade project. You should ideally be located in China or fluent in Chinese.

Key Requirements:
- Expertise in Java and frontend frameworks (React/Vue)
- Focus on User Interface improvements

Ideal Skills:
- Strong background in web application development
- Experience in software upgrade projects
- Proficiency in UI/UX design principles
- Ability to work collaboratively and communicate effectively

Please provide relevant work experience and any portfolio pieces.