Joy Choi Email & Phone Number

Mountain View, California

Android development for Gboard -• Work on expressive features (GIFs, stickers, emojis, emoticons)• Full stack development of data pipeline from logging to dashboarding of key metrics and performance of expression usage.

Software development for the retail industry -• Full stack development of the web portal for Mi9 Retail's primary product, the Merchandise Management System, using the following key technologies: AngularJS, Node.JS, T-SQL, SSRS, and Microsoft Visual Studio.

Data mining application in the health industry -• Development of a health behavior recommendation system for diabetics/heart disease patients to be happier: this project was a continuation/implementation of a Data Mining course project. In the project, I developed an algorithm based on existing pattern mining and kNN algorithms to recommend a database of 'unhappy' users with contrast patterns that differed based on the 'happy' users most similar to them.• Development of a web app using Django framework to conduct health behavior survey.• Implementation of a kNN-based algorithm to map the user to personalized recommendations on how they can be happier.

Software development for the retail industry -• Full stack development of Mi9 Retail's primary product, the Merchandise Management System, using the following key technologies: .NET, T-SQL, WPF, and Microsoft Visual Studio.

York University

Image registration and error analysis in computer assisted surgery applications - • Designed and fabricated assemblies and tools using SolidWorks CAD design software.• Collected data and performed analysis on Matlab; results were published and presented in a medical imaging conference.• Served as a TA for an introductory computer science course for lab sessions of 40 students: prepared instructional material for Eclipse IDE and answered in-lab questions.

Tutored high school students in: Advanced Functions, Calculus & Vectors, Physics, and Chemistry.