Hi, I’m Hyeonjee.
Product Designer building AI-powered, data-driven digital products that drive engagement, retention, and scalable growth globally.
I’ve worked at moments of product inflection—global expansion, early monetization, and system-building in fast-moving environments. At a pre-IPO digital health startup, I focused on defining what users would find valuable enough to pay for and translating that value into scalable product experiences. The initiatives I led were later incorporated into the company’s subscription model, helping shape long-term revenue strategy during a critical growth phase.
I’ve led end-to-end design initiatives—from early problem framing and experimentation planning to beta testing and post-launch optimization. This includes designing an AI-powered health assistant that increased conversions by 120% and engagement by 58%, and transforming a basic health tracker into a comprehensive, AI-driven dashboard that doubled adoption and tripled retention.
Beyond individual features, I think in systems. I’ve authored brand guidelines and scaled design systems adopted by multiple global teams, ensuring consistency and scalability as products grow across markets. I work closely with product and engineering to define success metrics, navigate constraints, and iterate based on user research and product analytics.
Currently based in the United States, I’ve designed and shipped products used across the U.S., Mexico, Vietnam, and Indonesia. I’m most energized when design decisions directly influence growth, trust, and long-term product sustainability.
Get in touch
Connect on LinkedIn
View resume
About
Education
University of California, Los Angeles
Dongduk Women’s University
Awards
Indigo Design Award 2024
Indigo Design Award 2023
25th 2019 International Communication Design Competition
2019 Blue Awards International Competition
Exhibitions
Seoul Design Festival 2018
Design Art Fair 2017
Seoul Design Festival 2016




Service
Product Design
UX Research & Strategy
Product Design, UX/UI Design
Design Systems, Visual Design
Prototyping & Testing
Mobile App, Responsive Design
Graphic Design
Brand Identity Design
Marketing Design
Presentation & Pitch Deck Design
Illustration & Iconography
Print & Collateral Design
Hi, I’m Hyeonjee.
Product Designer building AI-powered, data-driven digital products that drive engagement, retention, and scalable growth globally.
I’ve worked at moments of product inflection—global expansion, early monetization, and system-building in fast-moving environments. At a pre-IPO digital health startup, I focused on defining what users would find valuable enough to pay for and translating that value into scalable product experiences. The initiatives I led were later incorporated into the company’s subscription model, helping shape long-term revenue strategy during a critical growth phase.
I’ve led end-to-end design initiatives—from early problem framing and experimentation planning to beta testing and post-launch optimization. This includes designing an AI-powered health assistant that increased conversions by 120% and engagement by 58%, and transforming a basic health tracker into a comprehensive, AI-driven dashboard that doubled adoption and tripled retention.
Beyond individual features, I think in systems. I’ve authored brand guidelines and scaled design systems adopted by multiple global teams, ensuring consistency and scalability as products grow across markets. I work closely with product and engineering to define success metrics, navigate constraints, and iterate based on user research and product analytics.
Currently based in the United States, I’ve designed and shipped products used across the U.S., Mexico, Vietnam, and Indonesia. I’m most energized when design decisions directly influence growth, trust, and long-term product sustainability.
Get in touch
hyeonjeekang.work@gmail.com
Connect on LinkedIn
linkedin.com/in/hyeonjeekang
View resume
Based in
United States
Background
South Korea
Markets Shipped
United States · Mexico · Indonesia · Vietnam
Design Scope
Product design · UX/UI · Brand & visual systems
About
Education
University of California, Los Angeles
Dongduk Women’s University
Awards
Indigo Design Award 2024
Indigo Design Award 2023
25th 2019 International Communication Design Competition
2019 Blue Awards International Competition
Exhibitions
Seoul Design Festival 2018
Design Art Fair 2017
Seoul Design Festival 2016




Service
Product Design
UX Research & Strategy
Product Design, UX/UI Design
Design Systems, Visual Design
Prototyping & Testing
Mobile App, Responsive Design
Graphic Design
Brand Identity Design
Marketing Design
Presentation & Pitch Deck Design
Illustration & Iconography
Print & Collateral Design
Hi, I’m Hyeonjee.
Product Designer building AI-powered, data-driven digital products that drive engagement, retention, and scalable growth globally.
I’ve worked at moments of product inflection—global expansion, early monetization, and system-building in fast-moving environments. At a pre-IPO digital health startup, I focused on defining what users would find valuable enough to pay for and translating that value into scalable product experiences. The initiatives I led were later incorporated into the company’s subscription model, helping shape long-term revenue strategy during a critical growth phase.
I’ve led end-to-end design initiatives—from early problem framing and experimentation planning to beta testing and post-launch optimization. This includes designing an AI-powered health assistant that increased conversions by 120% and engagement by 58%, and transforming a basic health tracker into a comprehensive, AI-driven dashboard that doubled adoption and tripled retention.
Beyond individual features, I think in systems. I’ve authored brand guidelines and scaled design systems adopted by multiple global teams, ensuring consistency and scalability as products grow across markets. I work closely with product and engineering to define success metrics, navigate constraints, and iterate based on user research and product analytics.
Currently based in the United States, I’ve designed and shipped products used across the U.S., Mexico, Vietnam, and Indonesia. I’m most energized when design decisions directly influence growth, trust, and long-term product sustainability.
Get in touch
hyeonjeekang.work@gmail.com
Connect on LinkedIn
linkedin.com/in/hyeonjeekang
View resume
Based in
United States
Background
South Korea
Markets Shipped
United States · Mexico · Indonesia · Vietnam
Design Scope
Product design · UX/UI · Brand & visual systems
About
Education
University of California, Los Angeles
Dongduk Women’s University
Awards
Indigo Design Award 2024
Indigo Design Award 2023
25th 2019 International Communication Design Competition
2019 Blue Awards International Competition
Exhibitions
Seoul Design Festival 2018
Design Art Fair 2017
Seoul Design Festival 2016




Service
Product Design
UX Research & Strategy
Product Design, UX/UI Design
Design Systems, Visual Design
Prototyping & Testing
Mobile App, Responsive Design
Graphic Design
Brand Identity Design
Marketing Design
Presentation & Pitch Deck Design
Illustration & Iconography
Print & Collateral Design