# Stefanie Yoon Jae Choi > Senior Product Designer at Microsoft Location: United States, United States Profile: https://flows.cv/stefanieyoonjaechoi I am a creative at heart and a product designer by practice. My creativity coupled with my curiosity for how people interact with technology and spaces both digital and physical fuel my passion for crafting human-centered experiences. ## Work Experience ### Senior Product Designer @ Microsoft Jan 2022 – Present Outlook Design System and Expressions team ### UX Designer 2 @ Microsoft Jan 2020 – Jan 2022 User Experience Designer for the Your Phone app team under Microsoft Mobile Experience (MMX). Took ownership and built experiences that required a deep horizontal knowledge of the end-to-end product. I created and expanded from the bottom up the Your Phone design system, Engagement experiences, and executed product initiatives that improved the quality and retention of the Your Phone app. ### Lead Intern Coordinator @ Microsoft Jan 2020 – Jan 2020 Led coordinating efforts with 2 fellow intern coordintators for our 2020 summer cohort of Experience Collective (XC) Design and Research Microsoft interns. Efforts involved coordinating an internship program that included 8 different product teams, 9 interns, each of their managers and mentors, and recruiters and business leaders of the organizations. Conducted multiple syncs with individuals in each party to ensure clear communication, organized intern events that allowed opportunities for interns to connect in smaller group settings, engaged with each intern to ensure their wellness throughout the internship, created opportunities for interns to present their final work with the larger design organization and leadership. ### UX Designer @ Microsoft Jan 2019 – Jan 2020 | Redmond, Washington ### Teaching Assistant @ University of Washington Human Centered Design & Engineering Jan 2018 – Jan 2019 | Greater Seattle Area Served as a Teaching Assistant for HCDE 210 Explorations in Human-Centered Design and Engineering. Led ideation, design, and research activities with pre-major students. Connected with students beyond the classroom setting and mentored students who were interested in the UX design field. ### UX Design Intern @ Microsoft Jan 2018 – Jan 2018 | Redmond, Washington UX Design Intern with the Mobile and Merchandising Experiences Team (MMX) under Windows Engagement. Designed forward-thinking cross-device experiences that improve the synergy between your PC and phone. ### UX | UI Designer @ Lonely Produce Jan 2018 – Jan 2018 | Greater Seattle Area Directed the creation, design, and user experience of Lonely Produce’s mobile platform: a digital marketplace where farmers can auction their surplus farmer’s markets produce to local customers, businesses, and restaurants all in real-time. Conducted research sessions and interviews with farmers and local business managers to discover existing pain points of current farmer-to-business transactions. ### UX Designer and Front-End Developer @ Puget Sound Healthcare System Jan 2018 – Jan 2018 | Greater Seattle Area Created and implemented a sustainable web-based resource for medical professionals and community members to identify and discover assistive technologies. Translated the current paper-based tool into a usable and accessible web-based tool. Collaborated with Occupational Therapists in participatory design sessions to design and develop a website where the content, usability, and functionality meets their and their clients' needs. ### User Experience and User Research Intern @ Royal Cause SPC Jan 2016 – Jan 2017 | Greater Seattle Area Contributed to the creation of the interface design and user experience of Royal Cause's new business web portal. Conducted ten user research sessions to evaluate the functionality of the portal and reported my findings in a 20-page report. Heavily participated in the iteration of the product and led the presentation demonstrating the web portal to managers of non-profit organizations. ### Student Intern @ CoMotion at University of Washington Jan 2014 – Jan 2016 | Greater Seattle Area Designed marketing content for Startup Hall Created online communication content and weekly e-newsletters for Startup Hall members Organized the member database and inventory data Provided tours of the facility to visitors from entrepreneurial communities worldwide ## Education ### Bachelor of Science - BS in Human-Centered Design and Engineering University of Washington Jan 2015 – Jan 2019 ## Contact & Social - LinkedIn: https://linkedin.com/in/stefaniechoi --- Source: https://flows.cv/stefanieyoonjaechoi JSON Resume: https://flows.cv/stefanieyoonjaechoi/resume.json Last updated: 2026-03-30