Hi, I'm Heesun.
I’m a Product Designer based in London.
I have experience in both B2C and B2B industries. At Knowmerce, I designed features for fromm, a K-POP fandom platform, to connect artists and fans. Currently, at YMX, I design VR solutions and Digital Twin technology for B2B. Working in these different areas has helped me build a strong design background for various types of services and users.
Before becoming a designer, I started my career as an actor in Korea. This unique background gives me a deep insight into how people think and act.
As an actor, I spent a lot of time studying scripts, analyzing different situations, and researching characters to understand their motives. Now, I use these skills in my design process.
Work Experience
YMX
UX/UI Designer
Dec 2025 - Present
Deliver end to end UX/UI solutions for VR and Digital Twin platforms specialising in B2B tech
Design B2B internal systems by aligning corporate requirements with user-centered workflows
Craft prototypes to visualise complex interactions, making communication with the team smoother
Collaborate with PMs. engineers, and sales teams to align B2B requirements and ensure a consistent user experience
Knowmerce
UX Designer
Jul 2024 - Jul 2025
Led end to end UX/UI solutions for a global K-pop fandom
Led UX/UI process for the “Reply” feature for artists, reducing response time from 20 seconds to 5 seconds and increased message volume by 4.6%
Optimized the subscription renewal journey by empathizing with user frustrations, resulting in a 39% increase in subscription conversions
Improved design systems and streamlined the design to development handoff process, enhancing team communication and minimizing resource waste
Conducted user interviews and competitor research to find design insights, sharing findings in team study sessions to improve research quality
Collaborated with PMs and engineers to align B2B/B2C requirements and ensure a consistent user experience