# Hyunchul Yu > Product Designer at ProtoPie Location: San Francisco Bay Area, United States Profile: https://flows.cv/hyunchul I’m a Senior Product Designer with an engineering background and early experience as a software engineer, giving me a strong understanding of development environments and technology. My work in UX Research teams has strengthened my ability to communicate and empathize with diverse users. I have designed Mobile, Web, and PC experiences at global companies such as Samsung Electronics and HP, covering both consumer and B2B SaaS products. In the medical and healthcare domain, I contributed to UX innovation through service design projects at the Innovation Design Center of Asan Medical Center, and led the design of digital therapeutics applications as Head of UX at WELT. At Unity Technologies, I worked on real-time 3D projects involving digital twin technology. Later at Super Hero Unite, I worked as a Senior Product Designer on real-time 3D digital twin, metaverse, and AI solutions for shipbuilding and aerospace, using Unity to turn complex industrial workflows into intuitive, interactive experiences. Currently, I’m a Product Designer at ProtoPie, where I design the core UX and UI of ProtoPie Studio — a high‑fidelity prototyping tool that enables product teams to build realistic interactive prototypes. As a designer and team leader, I’m passionate about uniting cross-functional teams to turn ideas into products that users love. I have a strong track record of driving digital products from 0 to 1 — from concept to launch — and continuously improving user experiences post-release through user research and iteration. ## Work Experience ### Product Designer @ ProtoPie Jan 2025 – Present I design the core UX and UI of ProtoPie Studio, a high‑fidelity prototyping tool that enables product designers to create realistic interactive prototypes. ### Senior Product Designer @ Super Hero Unite Jan 2025 – Jan 2025 As a Senior Product Designer, I work on real-time 3D digital twin projects for shipbuilding and aerospace using the Unity engine. I am also involved in projects related to the metaverse and AI, contributing to the design of solutions across multiple domains. ### Head of UX @ WELT corp Jan 2024 – Jan 2025 As the Head of UX at WELT, I lead a talented team that includes Product Designers and Product Managers. I am responsible for designing the UX of our core products and overseeing both macro and micro-level UX for the services provided by WELT. ### Senior Product Designer @ WELT corp Jan 2024 – Jan 2024 I am responsible for the UX/UI design of a digital therapeutic app for insomnia patients, which uses AI technology and is classified as a medical device. This app requires a doctor's prescription for use. ### Senior Product Designer @ Unity Jan 2022 – Jan 2023 | Seoul, South Korea As part of the Accelerate Solutions team, I was responsible for UX design of client solutions. I worked as a UX designer with Hyundai Motor Company on a project developing digital twin solutions for their Hyundai Motor Group Innovation Center in Singapore. ### UX Designer @ Asan Medical Center (AMC) Jan 2021 – Jan 2022 | Seoul, South Korea As the sole UX designer at the hospital, I led the UX design of various projects. My work included designing the UX for an access control system implemented due to COVID-19, multiple mobile apps for patients and staff, the hospital information system utilized by medical staff in their daily work, a Bot project, operating room solutions for medical staff, and service design for elderly patients. ### UX Designer @ HP Jan 2016 – Jan 2020 | Seongnam, Gyeonggi, South Korea Contributed to UX design for various projects, including SaaS web solutions, mobile app prototyping, a web solution targeting developers, printer personalization feature UX (including printer front panel UI), and a voice user interface project. ### UX Designer @ Samsung Electronics Jan 2016 – Jan 2016 | Seoul, South Korea Participated in the UX design for Samsung Cloud Printing services, which included a mobile app, PC driver, and web application. My responsibilities involved integrating business requirements, defining service specifications, proposing UX designs to enhance the usability of various features, and creating comprehensive design guidelines. ### UX Researcher @ Samsung Electronics Jan 2014 – Jan 2016 | Suwon, Gyeonggi, South Korea Participated in UX research with a focus on improving the user experience of various services and products offered by Samsung Electronics' printing business division. In this role, I conducted usability testing on digital products, including websites, apps, and PC software, as well as hardware. Additionally, I conducted qualitative research to gain valuable insights into the user experiences at every interaction point between the business division and its users. ### Software Engineer @ Samsung Electronics Jan 2011 – Jan 2014 | Suwon, Gyeonggi, South Korea Developed embedded software that controls the printer engines using the C programming language. My responsibilities included coding embedded software, building ROMs in a Linux environment, and transferring them to the chips installed in printers. Furthermore, I was involved in measuring and managing the electrical signals within the printer circuits. ## Education ### Bachelor of Science - BS in Electronic and Electrical Engineering Sungkyunkwan University ## Contact & Social - LinkedIn: https://linkedin.com/in/hyunchulyu --- Source: https://flows.cv/hyunchul JSON Resume: https://flows.cv/hyunchul/resume.json Last updated: 2026-04-13