Hi, I'm Soojin.
I design AI and consumer products from 0 to 1.

DesignIntelligence

Seven years across AI, consumer, and enterprise products.
I work from early research and product direction through interaction design, systems, and launch.

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Recent work: T-Mobile's first AI assistant
AI Products Consumer Scale 0 to 1 Systems & Interaction
T-Mobile HYUNDAI IKEA BELK Google Developers Group

Selected work

Lead Product Designer · 3 AI patents · Webby Award winner

T-Mobile Agentic AI

Led 0 to 1 product design for T-Mobile's first AI assistant, from early concept through production handoff. Designed the conversational, multimodal, and system patterns across web, iOS, and Android.

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Bill explanation. The assistant reads the bill, highlights what changed, and stays available for follow-up questions.

Voice and UI together. Voice handles open questions while structured options appear when tapping is faster.

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Available in context. The assistant stays available while users browse, compare devices, or check promotions without leaving the current flow.

T-Mobile's AI Assistant, Webby Awards People's Voice Winner

Webby Award Winner.
The Best Use of AI and Conversational Interface Design.

Lead Product Designer · 8M annual visitors · +65% map comprehension

T-Mobile Coverage Map

Led the redesign of T-Mobile's Coverage Map, used by 8M people each year. Simplified network, signal, and location data so customers could understand coverage without decoding the map.

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Address-level coverage. Search an address to see coverage at the location that matters.

5G coverage result for a searched address

Plain-language coverage status. A searched address shows clear outdoor and indoor coverage status instead of relying only on a color legend.

Coverage along a driving route, previewed before you go

Coverage along a route. Preview expected coverage for a drive, including coverage along the route and relevant network information.

Coverage inside the everyday app map

Coverage in the everyday map. Coverage appears inside the app map people already use for family and places.

Coverage at a glance. Network and signal information were reorganized to reduce how much users had to interpret.

Founding Product Designer · B2B AI / ML · 300% revenue growth

Mondrian AI

Founding Product Designer for a B2B AI platform used by enterprise ML teams. Led the product structure and core workflows across data, model development, deployment, and reporting. The platform grew 300% in revenue and was adopted by enterprise customers including Samsung and Hyundai.

Platform dashboard. Brought Data Catalog, Studio, and SharePoint into one entry point for enterprise ML teams.

Published reports. Turned notebooks into shareable reports with inline discussion for teams reviewing model results.

Yennefer Admin dashboard with CPU, memory, storage and GPU gauges, usage trend, GPU table and project table

Admin dashboard. Cluster capacity at a glance, with every GPU and project traced to an owner.

Product walkthrough. An end-to-end flow from the home dashboard into recently updated projects.

Most recently

Senior Product Designer,
T-Mobile

At T-Mobile's AI Innovation Lab, I led 0 to 1 product design across AI and large-scale consumer experiences, from early product definition and research through interaction design and engineering handoff.

Recognition
4 AI design patentsPatents
5 HCI publications · IEEE / ACM · Best Paper AwardResearch
Lecturer, Fast Campus · Mentor, Google Developers GroupTeaching
M.S. Technology Innovation, University of Washington · M.S. Design Intelligence, Yonsei UniversityEducation
Contact

Let's talk.

Open to Senior Product Designer roles across AI, consumer products, and complex systems.

Email
soojin.ux@gmail.com
Phone
425.749.0557
LinkedIn
in/hwangsoojin
Resume
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