I design interactions that feel inevitable.

Featured Work

Project Alpha

Interaction design for a mobile-first experience.

MobileInteraction Design

Project Beta

Design system and component library.

Design SystemsUI

Project Gamma

AI product design and prototyping.

AIPrototyping

I'm Zhang Jiachang, an interaction designer with a focus on mobile operating systems, AI-powered products, and design systems. I believe the best interfaces disappear — they feel so natural that using them becomes inevitable.