Hi, I’m Estelle Cai
I design for how people think, feel, and behave.
Product Designer blending psychology, research, and technology to build thoughtful digital experiences.
Featured projects
Research-led work, from first interview to final interface.
A pharmacy waiting assistant that turns prescription wait time into clear status updates and optional, relevant shopping.
Role — Product Designer Read case study →
A warm screen-time companion that helps people understand their phone habits and change them without strict limits.
Role — Researcher & Product Designer Read case study →
An AI mentorship platform that gives psychology students clear, human guidance through three mentor roles.
Role — Researcher & Product Designer Read case study →
A school and home service that helps parents and teachers talk with children about sex education with confidence.
Role — Researcher & Service Designer Read case study →Selected experience
Design, research and product roles.
- UI/UX Design InternSummer Atlantic Capital
Designing SAC Nexus, a pre-launch B2B AI investment platform.
Sep 2026 – Present - Experience Design InternA4x Children’s Art Museum
Led 6 co-design sessions; story completion rose from ~40% to ~80%.
Mar – Jun 2026 - Product Manager InternFreemall Digital Tech
Shipped community features; cut the reporting flow from 5 steps to 3.
Jun – Aug 2025 - Research & Experience Design InternChina Development Research Foundation
Field study across 15 rural schools; training used by 50+ teachers.
Jun – Aug 2024
Hi, I’m Estelle.
I’m a designer who believes good ideas get better through testing, feedback, and a lot of iteration. Outside of design, you’ll probably find me on a tennis court, exploring places, or learning something new.