Hihi, this is Junchao! People also call me David!

I am a user researcher & systematic designer in practice and a storyteller & media artist in heart.

Currently, I am a UX Researcher at ServiceNow, leading research to inform the design for better workflow. Previously, I was at Duolingo, leading research for the China team and the Duolingo English Test team. I also worked with Dr. Laura Dabbish at Carnegie Mellon University Human-Computer Interaction Institute’s CoEx Lab as a full-time HCI researcher. I was leading the NSF-funded research on account sharing behaviors in romantic couples. I used mixed research methods including interviews, diary study, participatory design, research through design, and quantitative data analysis to explore ways to support couples’ information sharing.

I enjoy doing research at the intersection of social computing and design research. I am interested in using participatory design and research to leverage individuals and communities as units for positive change to happen in the socio-technical system.

In my spare time, you can find me 🚴🏼, 🥾, 🎾, 🏸, ⛹🏼‍♂️, 🏊🏼‍♂️, 99.9 % chance outdoors!

I also enjoy making art such as Chinese calligraphy, Chinese Shuimo painting, and taking photos.



Our work ‘It’s Problematic but I’m not Concerned’: University Perspectives on Account Sharing got accepted to CSCW 2022 as a full paper.


Two papers Understanding and Designing for Disaster Preparation on Social Media and Designing a Self-efficacy Game for Health Literacy in Marginalized Communities got accepted to CHI 2021 as late-breaking work.

Started my intern at Duolingo as a User Experience Researcher, working with China Team and Duolingo English Test (DET) Team.


Our work “It’s Our Mutual Responsibility to Share”: The Evolution of Account Sharing in Romantic Couples. got accepted to CSCW 2021 as a full paper.


I attended my first CSCW and presented my poster abstract about romantic couples’ account sharing behaviors.


Our work “Did You Just Purchase a Butt Head on Amazon?”: A Diary Study of Couples’ Everyday Account Sharing got accepted to CSCW 2020 as a poster.


Started my full-time research associate position with CoEx Lab, directed by Dr.Laura Dabbish.