Meet our team
Roastpic is a technology company composed entirely of students and professors from the Coffee Center at the University of California Davis. As scientists, we perform a lot of measurements of the size, color, and defect counts in coffee, which means we are intimately familiar with how laborious and expensive current methods are for quantifying these important metrics.
In 2022, two Q-certified computer science students who are deeply passionate about coffee joined the Coffee Center and started a project to use cell phones and computer vision to get high quality data about coffee. The result is Roastpic: an app explicitly designed to give the coffee industry hard data about coffee at a fraction of the cost of current methods.
Prof. Bill Ristenpart
CEO
Bill is a professor of chemical engineering and founding director of the Coffee Center at UC Davis.
Prof. Irwin Donis-Gonzalez
Chief Scientific Officer
Irwin is a Professor of cooperative extension in postharvest engineering in the Dept. of Biological & Agricultural Engineering at UC Davis.
Xiao (Harold) Liu
Chief Technical Officer
Harold is a PhD candidate in computer science at UC Davis, and is doing his dissertation on AI. He is also a Q-certified coffee expert.
Alice Dien
Lead Research Engineer
Alice is a PhD candidate in Biological & Agricultural engineering at UC Davis, with expertise in experimental characterization of post-harvest processing efficacy.
Zhuoheng (Andy) Li
Software Engineer
Andy is a senior undergraduate in computer science at UC Davis, and is also Q-certified.
Shrishti Chezhian
Research Engineer
Shrishti is a junior undergraduate majoring in Chemical Engineering at UC Davis and undergraduate researcher at the UC Davis Coffee Center.
Mengqi Cao
Head of design
Mengqi is a senior undergraduate majoring in Design, with expertise in user interface optimization.
Khoi Nguyen
Frontend Developer