Hi, I'm Heesun.
I’m a Product Designer based in London with experience across both B2C and B2B digital products.
In my last role at YMX, I designed B2B VR solutions and digital twin platforms. Before that, at Knowmerce, I designed features for fromm—a K-POP fandom messaging app. I focused on enhancing the conversational experience between artist and fans. Working across these different areas has helped me build a strong design background for various services and users.
Before becoming a designer, I started my career as an actress in Korea. This unique background gives me a deep insight into how people think and act.
As an actress, I spent a lot of time studying scripts, analysing 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 - Jul 2026
Standardised UX/UI for a drug abuse prevention VR simulation and implemented UI assets directly in Unity to streamline engineer handoffs
Leveraged generative AI tools to accelerate design variations and automate repetitive tasks, improving overall design productivity and workflow efficiency
Designed a complex train maintenance scheduling dashboard, leveraging interactive prototypes to align PMs and engineers and streamline review cycles
Translated complex B2B requirements into intuitive user flows and scalable UI solutions across web and VR platforms, balancing user needs, business goals, and technical constraints
Knowmerce
UX Designer
Jul 2024 - Jul 2025
Led end-to-end UX/UI solutions for “fromm”, a global K-pop fandom platform with 280,000+ subscribers
Led the UX/UI process for the “Reply” feature for artists, reducing response time from 20 seconds to 5 seconds and increasing message volume by 4.6%
Optimised the subscription renewal journey by empathising with user frustrations, resulting in a 39% increase in subscription conversions
Conducted user interviews and competitor research to find design insights, sharing findings in team study sessions to improve research quality
Improved design systems and streamlined the design to development handoff process, enhancing team communication and minimising resource waste
Collaborated with PMs and engineers to align B2B/B2C requirements and ensure a consistent user experience