Work

Selected work, 2010 to today.

Platform design and engineering at Samsung, founding product work at a GenAI startup, and 20+ AI consumer apps I built and run as a founder. Four flagship stories in depth, the rest on one shelf.

01DNNR Tech · 2025–present

TJ Near & Hot

An AI discovery app for Trader Joe's shoppers that grew to 100K+ iOS installs a year on organic search alone, with a store rating rebuilt from 1.9 to 4.4 stars.

102KiOS installs in 12 months, all organic

14Kmonthly active users

1.9 → 4.4★App Store rating, July to October 2026

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02Samsung Electronics · 2019–2023

Samsung AR Emoji

Led the AR design team behind Samsung's AI avatar platform, used by 20M+ people a month: a redesigned avatar, the creator pipeline and authoring tool behind it, partnerships with Disney and other IP holders, and an iF Design Award.

20M+monthly active users on the avatar platform

iF AwardiF Design Award, visual communication, 2020

4platforms: phone, tablet, PC, watch, plus a Unity SDK

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03DNNR Tech · 2025–present

AutoMiles

A mileage tracker that logs every drive automatically on-device, with the best retention in my portfolio: 38% of users still active on day one, 17% on day seven.

37.6%day-1 retention

16.6%day-7 retention

5% → 60%+users with auto-detection on after day one

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04Samsung Electronics · 2014–2016

Tizen mobile design system

Architected the design system for Samsung's Tizen platforms across mobile, wearable, and TV: principles, component library, and interaction patterns, shipped on 10M+ devices and published publicly, enabling 10,000+ partner apps.

10M+devices shipped with the new UX

10,000+partner apps built on the published guideline

FirstTizen smartphone, launched in India

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DNNR Tech · 2025–present

Founder: product strategy, UX architecture, design, code, launch, analytics, and iteration, end to end.

2025–present What to EatPoint your camera at a menu in any language and a multimodal model identifies every dish and shows you what it is. Shipped to both stores with cost and failure cases designed in from day one. DNNR Tech 2025–present One person, 20+ appsThe system behind building and running 20+ live apps alone: shared modules, one analytics standard, a KPI pipeline across five data sources, and AI agents that handle QA, growth, and store operations. DNNR Tech 2023–present Swing Like ProOn-device computer vision that tracks a golfer's body pose frame by frame and compares the swing with a pro's in 3D. No sensors, no uploads, free. The first app I built end to end, now in its fourth year. DNNR Tech

Phygtl · 2024–2025

Founding head of design and product at a generative-AI social startup.

2024–2025 Phygtl: a GenAI social platformFounding head of design and product for a social platform that turned user-generated content into immersive 3D experiences with generative AI. Architected the UX, creator tools, onboarding, and community mechanics from zero. Phygtl, Inc.

Samsung Electronics · 2010–2023

From Android framework engineer to design system architect to AR design team lead.

2017–2018 Samsung PhoneCast VRSole UX designer for the Gear VR app that brought mobile apps onto a 200-inch virtual screen. Used store reviews, interviews, and usage data to decide what to build next, reaching 1M+ monthly active users. Samsung Electronics

Earlier

Where the engineering and product habits come from.

2012–2013 Android input framework engineerBuilt handwriting and keyboard frameworks for Galaxy devices: multilingual input, accessibility, and custom keyboard integration. Samsung Electronics

2010–2012 Android UI framework engineerBuilt and optimized core UI components (font engines, themes, transitions) across 100M+ devices. Samsung Electronics

2016–2017 Product manager, cloud LMSManaged full-cycle development of an AWS-deployed learning management system for exam preparation. Usher Institute

2007–2009 Web designer and developerDesigned and launched a virtual TOEFL exam system with real-time instructor feedback, cutting testing cost by $200 per student. Usher Institute

2004–2006 Systems engineer, training simulatorsDeveloped radar communication simulators that cut hardware training cost by $200K per unit. ROK Army Signal School

2000–2001 Co-founder and CEO, web agencyBuilt websites that helped nonprofits and small businesses go digital. C-Plus