Principle Product Designer

Agnas (YooKyung) Han Lim

Los Angeles CA 661-***-**** ************@*******.*** linkedin.com/in/korina-han/ AI Portfolio Portfolio

SUMMARY

Principal UX Product Designer and senior UX leader with deep expertise in enterprise AI, data, and BI platforms. Led UX strategy and design systems at scale, driving $12M in cost savings, accelerating workflows by 25%, and supporting $50M+ in new business outcomes. Known for aligning executives, product, and engineering around shared decision frameworks, mentoring high-performing teams, and translating complex AI and data capabilities into scalable, accessible, and trusted user experiences across large B2B organizations.

KEY ACHIEVEMENTS

•Enterprise UX & AI Platform Leadership:Led UX strategy for large-scale AI and data platforms, influencing a 50+ person design and engineering organization and enabling $50M+ in new business through scalable, user-validated solutions.

•Design Systems as Business Infrastructure:Architected and governed enterprise design systems adopted across 10+ product lines, reducing time-to-market by 20%, increasing consistency by 30%, and generating $12M in cost savings.

•Lifecycle & Retention Impact:Designed post-purchase workflows and analytics dashboards that increased retention by 20%, session duration by 15%, and user satisfaction by 25% across enterprise users.

•Operational Efficiency Through UX:Applied Lean UX, experimentation, and reusable patterns to reduce development cycles by 20% while improving adoption and accessibility compliance.

•Ethical & Explainable AI UX:Established transparent AI UX patterns grounded in cognitive science and compliance standards, improving trust, decision accuracy, and adoption in regulated enterprise environments.

•Cross-Functional Executive Alignment:Partnered closely with Product, Engineering, Data Science, and executive stakeholders to translate business strategy into actionable UX roadmaps and delivery plans.

•Design Leadership & Talent Development:Built and mentored distributed UX teams through critiques, workshops, and feedback systems, improving quality, cohesion, and delivery consistency at scale.

CORE COMPETENCIES

•Enterprise UX & Data Product Strategy: Cognitive UX Design for AI/ML Interfaces & Ethical Systems, Data UX Strategy & Storytelling, Power BI, Tableau, MicroStrategy, Snowflake, SQL, Behavioral Analytics, Query Logic, Insight Visualization, D3.js, AI-Enhanced Workflow Design & Human-Centered Data Platforms

•Scalable Interaction Design & UI Systems: UX Systems Thinking, Modular UI Libraries, Design Systems Governance, Accessibility & Compliance (WCAG 2.1, ARIA), Cross-Platform Consistency, Responsive Product Design, Web, Mobile (iOS), SharePoint, Frameworks & Component-Based Design, React, Vue, Angular, Storybook

•Visual Design, Branding & Prototyping: UI/UX Prototyping, Figma, Adobe CC, Sketch, XD, Visual Systems,

Typography, Iconography, Color Theory, Branding, Specialized Interfaces, Packaging, Live Streaming, Creative Direction, Campaigns, Identity Systems, Cross-Media Consistency

•Tech Collaboration & Agile Delivery: Agile/Lean UX, SAFe Frameworks, Developer Handoff, Design QA, API Integration, Data/AI Accessibility, Ethical Compliance, Validation & Testing, Global Cross-Functional Team Enablement

•Strategic UX Leadership & Research: UX Strategy & C-Level Alignment, Product Road mapping, Stakeholder Workshops, Journey Mapping, A/B Testing, Usability Research, Insight Validation, AI/UX Innovation, Lifecycle Design, Human-AI Interaction, Scalable Design Ops, Team Mentorship, Feedback Culture, Enterprise Design Evangelism

PROFESSIONAL EXPERIENCE

AT&T Jul 2015 - Apr 2024

Principal UX Product Designer & Product Engineer - Data & AI Platforms (formerly: Lead Big Data Engineer, Sr. Big Data Engineer, Principal Design Analyst)

•Led an enterprise-wide UX transformation in partnership with the CDO, mentoring 12 designers and embedding inclusive UX frameworks into AI and data platforms supporting $2M+ executive investment decisions.

•Owned UX strategy for AI and analytics platforms used by 5,000+ employees, applying Agile/Lean UX and responsive design to accelerate workflows by 25% and meet enterprise accessibility standards.

•Architected and governed scalable design systems and reusable component libraries adopted across 10+ product lines, reducing time-to-market by 20% and generating $12M in cost savings.

•Directed UX for enterprise cloud migration initiatives, ensuring seamless user transitions, zero downtime, and continuity for mission-critical data platforms.

•Institutionalized UX research practices (usability testing, surveys, behavioral analytics), increasing user retention by 20% and reducing onboarding time by 15%.

•Built and led a global design team of 12, establishing critique rituals and quality standards that improved design consistency by 30% and strengthened inclusive design culture.

•Partnered with five cross-functional product squads to deliver BI tools and AI dashboards using React, achieving full WCAG 2.1 accessibility audit compliance.

•Designed ethical, explainable AI UX flows grounded in cognitive science and regulatory standards, increasing user trust scores by 25%.

•Consolidated fragmented BI tools into a governed B2B marketplace, reducing redundant dashboards by 40% and streamlining enterprise insight discovery.

Northrop Grumman Corporation Oct 2014 - Jun 2015

Lead UX/UI Designer, SharePoint Systems (Contractor)

•Redesigned 10+ SharePoint platforms using SharePoint Designer, standardizing UI patterns, which cut inconsistencies by 35% and sped up department-wide adoption.

•Improved tool efficiency by redesigning user journeys and implementing WCAG-compliant UI, increasing task completion rates by 20% and ensuring accessibility for over 5,000 users.

•Revamped onboarding flows with contextual assistance, increasing platform adoption by 25% while ensuring responsive, accessible design across web and mobile.

•Executed UX enhancements through A/B testing and usability studies, simplifying features and raising user satisfaction scores by 15%.

SADA Systems Inc. Feb 2014 - Sep 2014

Sr. Graphic Web Designer / Developer/UX Strategy, and Scalable Design Operations

•Directed UX strategy for a corporate microsite, conducting 20+ stakeholder interviews and mapping user journeys that improved task efficiency by 25% and increased content engagement rates.

•Developed modular UI libraries and standardized design systems across 3 platforms, achieving full WCAG 2.1/ARIA compliance and reducing design-to-dev handoff times by 30%.

•Coordinated cross-functional brand governance for 5 business units, streamlining asset workflows that reduced design revisions by 20% and ensured consistent, accessible brand identity across platforms.

Guidepoint Advisors / Guide Studio Independent Consultant & Owner Jan 2002 - Present

Creative Director - Strategic Design Executive / Leading AI, Data UX, and Product Innovation at the C-Level

•Consolidated experience from Hans Graphic Arts, Guide Studio, and Guidepoint Advisors by applying behavioral analytics, WCAG 2.1 accessibility checks, and API-driven workflow integration, delivering integrated design leadership that broadened cross-industry expertise and enabled smoother project transitions.

•Provided strategic UX and AI/data design guidance for enterprise clients by implementing Agile workflows, AI-driven interface patterns, and data visualization strategies, improving client satisfaction and project efficiency.

•Led 50+ UX and branding projects across healthcare, tech, and retail, applying Figma and modular design systems to create responsive workflows, increasing client acquisition by 30% and conversion rates by 25%.

•Managed cross-functional teams of up to 10 designers/developers, delivering 3D and digital assets, reducing UI inconsistencies by 40%, and ensuring accessibility across platforms.

•Develop scalable design systems and multi-channel style guides, cutting design-to-development handoff time by 25% and aligning UX strategy with business goals while mentoring junior designers to improve client satisfaction by 20%, using Figma.

EDUCATION

Massachusetts Institute of Technology xPRO

Applied CS / AI engineering / product development

•Achievements: Designing and Building AI Products & Services (Certification) North Carolina A&T State University, Greensboro, North Carolina

Master of Business Administration

Pratt Institute, New York, NY

Master of Science, Communication Design

Otis College of Art and Design, Los Angeles, CA

Bachelor of Fine Arts, Communication Design

LICENSE & CERTIFICATION

•SAFe 5 Agilist: Certification by AT&T, May 2021

AWARD, EXHIBITIONS & PUBLICATIONS

AT&T Cross-Platform UX Optimization Award (2022)

•Drove $12M in cost savings through automation and scalable design systems. Summit International Awards – Bronze Winner

•Recognized for innovative modular game product promoting children’s cognitive engagement.

36th Annual Creativity Award & Publication

•"The Quality of Water* poster series promoting environmental awareness (Louisville, KY, Print) and *View Book, Visual Communications*, Otis College of Art and Design.

Exhibited Work

•Motion film - *Design and Sustainability*, Rubelle and Norman Schafler Gallery, Pratt Institute, exploring eco-conscious design narratives.

Academic Publications

•Cognitive UX Design Principles Guiding Children to a Friendly New-Digital Media Experience*, ProQuest.

LANGUAGES

•English (Fluent)

•Korean (Fluent)

Greensboro, North Carolina

New York, NY Los Angeles, CA

Contact this candidate