Product Designer with 6 years of experience designing intuitive, data‑driven solutions across agency and startup

I design intuitive, user-friendly solutions that bridge business goals and user needs. With experience in a design agency, a startup, and personal product launch, I’ve successfully led UX/UI redesigns, run user research, and delivered conversion-focused results for clients like Samsung, Kakao, and Hyundai.

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My approach combines curiosity about users with a focus on business impact. Even with limited data, I conduct interviews and usability tests to uncover insights that drive impactful design decisions.

Experience

Cove

Product Designer

Mar 2026 - Present

Day1 Company

UXUI Coach

Oct 2025 - Present

Freelance

Freelance Product Designer

Aug 2025 - Mar 2026 (4M)

Team Ultra

Product Designer

Feb 2024 - Jun 2025 (1.5Y)

Duotone

Senior UXUI Designer

Aug 2020 - Aug 2023 (3Y)

pxd

UX Designer (Intern)

Sep 2018 - Dec 2018 (3M)

Testimonials

“Joy(Minkyung) has the rare ability to balance usability with visual excellence, delivering results that are both highly functional and aesthetically refined. Her design expertise spans across UX, UI, and design systems, which makes her an incredibly versatile designer.”

Jisu Yoon

Lead Product Designer, Team Ultra

“She was never the kind of manager who simply handed down tasks—instead, she involved me in the thinking process, guided me to approach problems logically, and encouraged me to grow while moving forward together.”

Name

UXUI Designer, Duotone

“Her sharp eye for insights and flexible communication skills within the team are particularly remarkable. Thanks to these strengths, even in complex projects with many stakeholders, she was able to keep the direction steady and deliver impactful outcomes.”

Kyungeun Kim

UXUI Designer, Duotone

“She excels across the entire design process — not only with strong hard skills in research, IA, and UI, but also with the ability to break down complex problems into clear, actionable steps quickly. She was a trusted teammate, regardless of the challenges we faced.”

Seri Lee

UXUI Designer, Duotone

“She has an outstanding ability to uncover the essence of user needs and translate them into clear, actionable solutions. I was constantly amazed by her sharp insights and her ability to approach problems from the core.”

Seungyoon Lee

Lead UXUI Designer, Duotone

“Joy(Minkyung) is not only a talented designer but also a true product partner with strong business acumen, design expertise, and collaborative spirit. I am confident she will thrive as a Product Designer in any global environment.”

Hajin Jeon

Product Designer, WaggleWaggle

Product Designer with 6 years of experience designing intuitive, data‑driven solutions across agency and startup

I design intuitive, user-friendly solutions that bridge business goals and user needs. With experience in a design agency, a startup, and personal product launch, I’ve successfully led UX/UI redesigns, run user research, and delivered conversion-focused results for clients like Samsung, Kakao, and Hyundai.

​

My approach combines curiosity about users with a focus on business impact. Even with limited data, I conduct interviews and usability tests to uncover insights that drive impactful design decisions.

Experience

Cove

Product Designer

Mar 2026 - Present

Day1 Company

UXUI Coach

Oct 2025 - Present

Freelance

Freelance Product Designer

Aug 2025 - Mar 2026 (4M)

Team Ultra

Product Designer

Feb 2024 - Jun 2025 (1.5Y)

Duotone

Senior UXUI Designer

Aug 2020 - Aug 2023 (3Y)

pxd

UX Designer (Intern)

Sep 2018 - Dec 2018 (3M)

Testimonials

“Joy(Minkyung) has the rare ability to balance usability with visual excellence, delivering results that are both highly functional and aesthetically refined. Her design expertise spans across UX, UI, and design systems, which makes her an incredibly versatile designer.”

Jisu Yoon

Lead Product Designer, Team Ultra

“She was never the kind of manager who simply handed down tasks—instead, she involved me in the thinking process, guided me to approach problems logically, and encouraged me to grow while moving forward together.”

Name

UXUI Designer, Duotone

“Her sharp eye for insights and flexible communication skills within the team are particularly remarkable. Thanks to these strengths, even in complex projects with many stakeholders, she was able to keep the direction steady and deliver impactful outcomes.”

Kyungeun Kim

UXUI Designer, Duotone

“She excels across the entire design process — not only with strong hard skills in research, IA, and UI, but also with the ability to break down complex problems into clear, actionable steps quickly. She was a trusted teammate, regardless of the challenges we faced.”

Seri Lee

UXUI Designer, Duotone

“She has an outstanding ability to uncover the essence of user needs and translate them into clear, actionable solutions. I was constantly amazed by her sharp insights and her ability to approach problems from the core.”

Seungyoon Lee

Lead UXUI Designer, Duotone

“Joy(Minkyung) is not only a talented designer but also a true product partner with strong business acumen, design expertise, and collaborative spirit. I am confident she will thrive as a Product Designer in any global environment.”

Hajin Jeon

Product Designer, WaggleWaggle

Product Designer with 6 years of experience designing intuitive, data‑driven solutions across agency and startup

I design intuitive, user-friendly solutions that bridge business goals and user needs. With experience in a design agency, a startup, and personal product launch, I’ve successfully led UX/UI redesigns, run user research, and delivered conversion-focused results for clients like Samsung, Kakao, and Hyundai.

​

My approach combines curiosity about users with a focus on business impact. Even with limited data, I conduct interviews and usability tests to uncover insights that drive impactful design decisions.

Experience

Cove

Product Designer

Mar 2026 - Present

Day1 Company

UXUI Coach

Oct 2025 - Present

Freelance

Freelance Product Designer

Aug 2025 - Mar 2026 (4M)

Team Ultra

Product Designer

Feb 2024 - Jun 2025 (1.5Y)

Duotone

Senior UXUI Designer

Aug 2020 - Aug 2023 (3Y)

pxd

UX Designer (Intern)

Sep 2018 - Dec 2018 (3M)

Testimonials

“Joy(Minkyung) has the rare ability to balance usability with visual excellence, delivering results that are both highly functional and aesthetically refined. Her design expertise spans across UX, UI, and design systems, which makes her an incredibly versatile designer.”

Jisu Yoon

Lead Product Designer, Team Ultra

“She was never the kind of manager who simply handed down tasks—instead, she involved me in the thinking process, guided me to approach problems logically, and encouraged me to grow while moving forward together.”

Eunhye Lee

UXUI Designer, Duotone

“Her sharp eye for insights and flexible communication skills within the team are particularly remarkable. Thanks to these strengths, even in complex projects with many stakeholders, she was able to keep the direction steady and deliver impactful outcomes.”

Kyungeun Kim

UXUI Designer, Duotone

“She excels across the entire design process — not only with strong hard skills in research, IA, and UI, but also with the ability to break down complex problems into clear, actionable steps quickly. She was a trusted teammate, regardless of the challenges we faced.”

Seri Lee

UXUI Designer, Duotone

“She has an outstanding ability to uncover the essence of user needs and translate them into clear, actionable solutions. I was constantly amazed by her sharp insights and her ability to approach problems from the core.”

Seungyoon Lee

Lead UXUI Designer, Duotone

“Joy(Minkyung) is not only a talented designer but also a true product partner with strong business acumen, design expertise, and collaborative spirit. I am confident she will thrive as a Product Designer in any global environment.”

Hajin Jeon

Product Designer, WaggleWaggle