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Lead product designer. T‑Mobile, Microsoft, Home Depot.
I'm a Senior UX/Product Designer who works best when the problem is genuinely hard: AI systems, messy workflows, ambiguous briefs, multi-stakeholder systems where nobody agrees yet on what success looks like.
02Notes for visitors
A few things I want you to know.
Portfolio metrics include both verified deliverables and research-informed targets. Each is labeled to distinguish them.
Preferred contact: LinkedIn message or email. Response within 48 hours.
Contact
Let's talk about your next product design challenge.
Best fit: teams building AI products, enterprise workflows, or complex systems where the problem is genuinely ambiguous. Open to senior UX, lead product design, and product design roles. Full-time or contract.
01Channels
Email, LinkedIn and availability.
Email
takyejun@gmail.com
Best for hiring conversations and project inquiries. I read every message and reply within two business days.
LinkedIn
linkedin.com/in/peter-tak
Career history, recommendations, and recent activity. DMs open for serious conversations.
Location
United States
Open to full-time and contract roles starting 2026.
02Career arc
Twelve years across enterprise, healthcare, and consumer.
Apr 2025 – Dec 2025
T-Mobile
Lead Product Designer, Network & AI
Led end-to-end UX design of customer booking and service scheduling workflows tied to retail support and service operations, calendar-driven interaction flows, booking states, and enterprise design system components.
Feb 2025 – Apr 2025
Home Depot
Sole Product Designer, Core AI
Designed multi-step workflow interactions and AI-assisted analytics interfaces for enterprise data teams, reducing manual reporting time by 50%.
Oct 2022 – Apr 2024
Microsoft
Product/UX Designer III, Microsoft Graph Toolkit
Designed reusable Teams-aligned UI components, scalable Figma design system architecture, and developer-facing UX patterns across the Microsoft 365 ecosystem.
2022 – 2023
Anywhere Real Estate (prev. Realogy)
Senior UX Designer
Designed progressive web and mobile applications, led user research and moderated testing sessions, and contributed to internal design system development.
2019 – 2022
Vita (Onlife)
UX Lead, Healthcare
Led UX design of Syncs, a healthcare mobile application. Built a comprehensive design system based on Material Design and collaborated with development teams on data-driven, user-centered experiences.
May 2019 – 2022
Netflix Animation
Visual Designer
Designed motion and animation for Kulipari: An Army of Frogs (Netflix animated series), including animation production, title sequences, and pitch deck design. Built interactive content in Rive and redesigned the Kulipari franchise website with immersive animated experiences.
Sep 2019 – Apr 2020
Streets Market
Senior UX Designer, Retail & E-commerce
Rebranded e-commerce platform and meal kit service, integrated digital and physical retail experiences, and developed membership loyalty programs bridging online and in-store channels.
2016 – 2019
AGMD, Korea
UX/UI Lead, Creative Agency
Managed and delivered 30+ client projects for brands including Samsung, Innisfree, and MVNO (acquired by Toss), achieving an average 40% increase in user interaction rates across redesigned e-commerce platforms.
2018
Oculus / Meta
Oculus Launchpad Participant
Selected for the competitive Oculus Launchpad program, a VR/AR creator initiative supporting diverse developers and designers building immersive experiences.
03Perspective
How I think about design.
Operational clarity over visual polish
On the T-Mobile dashboard, three roles (fleet manager, analyst, executive) were sharing one view that served none of them. I split it into role-based defaults with context-preserving role switches. Fleet managers got their action queue at 9 AM. Executives got the weekly view they previously asked analysts to build manually. Time-to-insight for fleet managers dropped 54%. Executive sessions per week rose 38%.
Human control in AI, not against it
Designing T-Mobile's service-coordination voice AI, the temptation was to maximize automation. Instead I defined explicit capability boundaries: what the AI handles, what it routes to a human, and how the handoff carries context forward. The 12% escalation rate isn't a failure of the AI. It's the system correctly identifying its own limits. Trust comes from honesty about what AI can and can't do.
Speed is a design skill
At Home Depot I used AI-assisted prototyping to move from concept to testable interface in days, not weeks. The team could react to something real instead of debating a deck. Getting to a prototype fast isn't a shortcut. It's how you find the real problem before over-investing in the wrong answer.
Practice and research are the same problem
My HCI research asks which oversight timing regime best supports accurate human intervention when computer-use agents change workflow state across multiple steps. That's the same question I'm answering when I design Magic Apron's mid-project checkpoints or T-Mobile's AI escalation paths. Research grounded in practice produces better experiments. Practice informed by research produces better designs.
05Capabilities
What I can take from ambiguity to ship.
- UX research and synthesis
- Product strategy and opportunity framing
- UX architecture
- Enterprise dashboard UX
- Agentic AI and voice interaction design
- AI-assisted prototyping (Cursor, Claude)
- Developer tool UX
- Design systems and governance
- Motion design and Rive animation
- High-fidelity prototyping
- Accessibility and state design
- Stakeholder alignment
06Best fit
Roles and environments where my experience maps most directly.
- Senior UX Designer
- AI Product Designer
- Lead Product Designer
- UX Architect
- Enterprise UX / Workflow Design
- Data Product UX
- Agentic AI Product Design