I’m Daye Ko, a product designer driven by human-centered innovation—designing products that meaningfully improve people’s everyday lives.
Experience
2024 — Now
Lead [Mosaic]Project UX Designer - project w/Samsung, IBM
• LLM-Based Samsung CoPilot UX Design and Prototype Development
• Develop user personas to guide the design process.
• Utilize appropriate tools and platforms to build a functional prototype.
• Leading overall design responsibilities and headed the TF design team.
2025 — Now
2025 — Now
샌프란시스코 만 지역
• Led end-to-end design for a restaurant-optimized POS workflow for peak-hour operations, enabling fast, error-resistant navigation under pressure.
• Designed a restaurant-optimized POS workflow for peak-hour operations, enabling fast, error-resistant navigation under pressure.
• Created a robust order customization system supporting complex modifiers and reducing missed/incorrect tickets.
• Supported diverse store setups via adaptable hardware UI patterns (rotation/height/wall-mount), minimizing setup friction across layouts.
• Led the design workstream end-to-end (requirements → flows → UI specs → QA) in a team project, aligning stakeholders on POS workflows for peak-hour operations.
2024 — 2024
2024 — 2024
대한민국 서울
• Conducted usability tests with 40 crypto newcomers and identified three cognitive barriers blocking first-time transactions.
• Designed an earnings & APR management experience, increasing DAU by 28% and feature retention by 35%.
• Built an in-app glossary, reducing terminology-related support tickets by 42%.
• Prototyped and validated a passkey-based login flow, cutting login time by 60% while maintaining existing 2FA security requirements.
• Introduced a multi-step onboarding flow, increasing completion from 72% to 93%.
• Redesigned the staking UI to clarify risk–reward trade-offs, improving trust scores by 22 points in a post-test survey.
2021 — 2023
2021 — 2023
대한민국 경기도 판교 카카오판교오피스
• Rebuilt a scalable design system and component library, cutting UI handoff time by 40% and reducing component duplication by 35%.
• Led the UX redesign of policy management and time & attendance tools, increasing employee satisfaction by 80% and improving task completion speed by 25%.
• Conducted usability tests every two weeks with the HR team (50+ total participants) to validate streamlined workflows.
• Analyzed Firebase event logs to uncover churn drivers; iterated on the product and increased MAU by 30%.
2020 — 2021
2020 — 2021
대한민국 서울
• Collaborated with 15 cross-functional squads to address UX pain points across financial flows.
• Introduced the “Easy Financial Services” framework, increasing NPS by 15 points and improving conversion by 20%.
• Designed step-by-step loan and investment flows, cutting form-completion time by 37%.
• Reduced customer inquiries by 25% by improving information architecture and adding contextual help within key flows.