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Hyun Kim
Verified Expert in Design
Designer
San Francisco, CA, United States
Toptal member since May 19, 2020
Bio
Hyun has 10+ years of experience designing digital products for Fortune 500 companies and Bay Area startups. He loves to build intuitive, thoughtful, and beautifully crafted products for organizations looking for an autonomous designer who loves to ship quickly. Hyun works closely with top Bay Area VC firms like Greylock Partners and Bain Capital to help their portfolio companies with product design needs. Hyun has worked for many companies, including Intel, Walmart, J&J, Genentech, and more.
Experience
- UX Design - 12 years
- Web App Design - 11 years
- UI Design - 11 years
- User Experience (UX) - 11 years
- Product Design - 11 years
- Dashboard Design - 10 years
- Data Visualization - 9 years
- Mobile Design - 8 years
Portfolio
Work Experience
Founding Product Designer
2024 - PRESENT
Cogent Security
- Built the design function from the ground up: Defined Cogent’s design principles, processes, and tooling from scratch, enabling rapid prototyping and consistent UX across early features.
- Designed core user workflows for the MVP: Led UX for mission-critical experiences, including onboarding, dashboarding, and real-time alerting, directly influencing early customer adoption and retention.
- Partnered cross-functionally to define product direction: Worked closely with engineering and the founding team to translate abstract problem spaces into intuitive, shippable product experiences.
Technologies: AI Design, Figma, UX Design, UI Design, B2B, Enterprise Design, Startups, CSS, JavaScript, HTML, Web App UI, Visual Design, Web Design, Prototyping, Dashboard Design, User Experience (UX), Product Design, Web App UX, Web UX, Adobe Illustrator, User Flows, Information Architecture (IA), Balsamiq, Enterprise SaaS
Product Designer (Portfolio Companies)
2020 - PRESENT
Greylock Partners
- Worked closely with Greylock partners as a referral product designer for many of their early portfolio companies.
- Collaborated with the founders and core team on endeavors ranging from pre-seed to series B. Many Greylock Partners portfolio companies, including names of note like Airbnb and LinkedIn, pass $1 billion valuations.
- Built new MVP products and optimized product design needs for portfolio companies.
Technologies: Web Dashboards, Web Applications, Web App Design, User Interface (UI), SaaS Design, Responsive Web Apps, B2B, Figma, Web App UI, UI Design, Visual Design, Web Design, Prototyping, Mobile Design, Dashboard Design, User Experience (UX), Product Design, Web App UX, Web UX, Adobe Illustrator, User Flows, AI Design, Information Architecture (IA), Balsamiq, App Design, Fortune Global 500, Enterprise SaaS
Senior Product Designer
2020 - PRESENT
Bain & Company
- Helped design new digital products for Fortune 500 executive clients. Services from the digital team include UX research, product strategy, product design, and implementation.
- Conducted onsite UX research, did rapid collaborations, held design thinking workshops, and handled client presentations.
- Designed specific outputs that have included mockups, interactive products, heuristic evaluations, user personas, empathy maps, multi-variant testing, interactive prototypes, animations, and videos.
- Implemented UX research practices include multiple variant testing, A/B testing, usability testing, on-site observation, system usability scale, 5 Whys, user flows, user journeys, and storyboarding.
- Worked and collaborated with MBA consultants to help provide a balance of user needs and business objectives for our clients.
Technologies: Web Dashboards, Web Applications, Web App Design, User Interface (UI), SaaS Design, Responsive Web Apps, B2B, Enterprise Design, Enterprise SaaS, Enterprise, Dashboards, Fortune Global 500, SaaS, User Interviews, Usability Testing, Mobile UI Design, Mobile App Design, iOS App Design, Data Visualization, User Research, iOS, UX Design, Product Design, Web App UX, User Experience (UX), Dashboard Design, Mobile Design, Prototyping, Visual Design, UI Design, Web App UI, Balsamiq, Figma, Web UX, Adobe Illustrator, User Flows, AI Design, Information Architecture (IA), App Design
Founding Product Designer
2022 - 2024
Bedrock Security
- Led product design from 0 to 1. Helped transform early backend-only technology into a functional and user-friendly product, now used by 10+ enterprise customers and instrumental in securing Series A funding.
- Drove user-centered design through active customer engagement: Conducted direct interviews and feedback sessions with users to extract actionable insights, shaping product strategy and UX priorities.
- Created and implemented the design process and UI design system still in use today, enabling consistency and efficiency as the product scales.
Technologies: Figma, CSS, AI Design, Enterprise SaaS, B2B, Startups, Cybersecurity, Web App UI, UI Design, Visual Design, Web Design, Prototyping, Dashboard Design, User Experience (UX), Product Design, Web App UX, Web UX, Adobe Illustrator, User Flows, Information Architecture (IA), Balsamiq
Product Designer
2019 - 2020
Abnormal Security
- Worked as the sole product designer from their series A to series B funding of $24 million from top-tier Bay Area VC firm, Greylock Partners.
- Oversaw UX research including user interviews, persona creation, empathy mapping, user flows, user journeys, and usability testing.
- Collaborated with stakeholders including the founders, chief staff, engineers (ML, infra, front end), customer success, and marketers to help design new products for our suite.
- Designed our internal tools that our ML engineers and data scientists could leverage for their investigation process.
- Communicated and represented the customer's voice through weekly insights aggregated through multiple channels.
Technologies: Web Dashboards, Web Applications, Web App Design, User Interface (UI), SaaS Design, Responsive Web Apps, B2B, Enterprise Design, Enterprise SaaS, Enterprise, Designing for Data, Dashboards, Cybersecurity, SaaS, User Interviews, Usability Testing, Mobile UI Design, Mobile App Design, iOS App Design, Data Visualization, User Research, iOS, UX Design, Product Design, Web App UX, User Experience (UX), Dashboard Design, Web Design, Visual Design, UI Design, Balsamiq, Figma, Web App UI, Prototyping, Web UX, Adobe Illustrator, User Flows, AI Design, Information Architecture (IA)
Product Designer
2017 - 2019
Owsy
- Worked on multiple products including agency management, policy management, E&S insurance accounting, and a distribution API used for third-party integration.
- Worked as the sole designer and designed new products and features as well as redesigning existing ones.
- Conducted on-site interviews and usability tests to gain user insights throughout various offices in California.
- Designed user journeys, maps, and personas to compile strong UX insights and findings to stakeholders.
- Provided the information architecture, UX, interaction, visual, and UI for all of their products.
Technologies: Web Dashboards, Web Applications, Web App Design, User Interface (UI), SaaS Design, Responsive Web Apps, B2B, Enterprise, Dashboards, SaaS, User Interviews, Usability Testing, Mobile UI Design, iOS App Design, Data Visualization, User Research, iOS, UX Design, Product Design, Web App UX, User Experience (UX), Dashboard Design, Web Design, Visual Design, UI Design, Web App UI, Balsamiq, Figma, Prototyping, Web UX, Adobe Illustrator, Sketch, User Flows, Information Architecture (IA), Enterprise SaaS
Associate Creative Director | Partner
2016 - 2018
Websauce Studio (Acquired by White Rabbit)
- Managed the client interactions for design services and designed all projects from ideation to inception.
- Provided new design consulting services to the agency including product design, iOS and Android design, ethnography research, product strategy, information architecture, and technical feasibility.
- Increased Websauce's project workload capabilities by managing and designing five to six projects at a time.
- Helped double our company revenue from 2017 to 2018 and raise it by another 60% from 2018 to 2019.
Technologies: Web Dashboards, Web Applications, Web App Design, User Interface (UI), SaaS Design, Responsive Web Apps, Dashboards, SaaS, User Interviews, Usability Testing, Mobile App Design, iOS App Design, Data Visualization, User Research, iOS, Figma, UX Design, Product Design, Web App UX, User Experience (UX), Dashboard Design, Mobile Design, Prototyping, Web Design, Visual Design, UI Design, Web App UI, Balsamiq, Sketch, Web UX, Adobe Illustrator, User Flows, Information Architecture (IA), App Design, Fortune Global 500, Enterprise SaaS
User Interface Designer
2014 - 2016
Breyta
- Designed intranet systems and digital supply chain products for Fortune 500 companies.
- Collaborated closely with UX researchers, PMs, and engineers with an agile process.
- Produced high-fidelity UI designs from the basic box or sketched wireframes.
- Executed the correct branding standards and established proper aesthetics from colors, fonts, layout, logos, iconography, and illustrations.
- Worked on product strategy and UX responsibilities on smaller-scale projects.
Technologies: B2C, Web Dashboards, Web Applications, Web App Design, User Interface (UI), SaaS Design, Responsive Web Apps, B2B, Enterprise, Designing for Data, Dashboards, Fortune Global 500, SaaS, User Interviews, Mobile UI Design, Data Visualization, User Research, Figma, UX Design, Product Design, Web App UX, User Experience (UX), Visual Design, UI Design, Web App UI, CSS, HTML, Balsamiq, Sketch, Web Design, Mobile Design, Web UX, Adobe Illustrator, User Flows, Information Architecture (IA), App Design, Enterprise SaaS
Education
2010 - 2014
Bachelor's Degree in Design, Visual Communication
University of California, Davis - Davis, CA, United States
Skills
Tools
Sketch, Adobe Illustrator, Balsamiq
Platforms
Figma, iOS
Industry Expertise
Healthcare, Fitness, Cybersecurity, Exercise & Fitness, Health & Wellness, Automotive, Telecommunications
Languages
HTML, CSS, JavaScript
Other
Web App UX, Web App UI, Product Design, UX Design, UI Design, Visual Design, User Research, Web Design, Mobile Design, Data Visualization, Prototyping, User Flows, Dashboard Design, App Design, User Experience (UX), Web UX, iOS App Design, Medicine, Fortune Global 500, Dashboards, Designing for Data, Wellness, Mobile App Design, Mobile UI Design, Usability Testing, User Interviews, SaaS, Communication Design, Enterprise, Enterprise SaaS, AI Design, Information Architecture (IA), Enterprise Design, B2B, Responsive Web Apps, SaaS Design, User Interface (UI), Web App Design, Web Applications, Web Dashboards, B2C, Medical Software, Decentralized Finance (DeFi), Cryptocurrency, Blockchain, Startups
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