Kevin Tenn
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RingJul 2016—Jun 2018Design Lead

Consumer IoT experience + design system

Led design across Ring's consumer IoT product line and built the company's first design system across iOS and Android.

Team
1 PD · 4 iOS ENG · 4 Android ENG · 2 QA ENG · 1 UX Writer
Stack
iOS (Swift / SwiftUI), Android (Java)—Ring Style Kit mirrored across both platforms with shared tokens, against firmware + back-end on hardware-launch cadences.
Audience
1M → 10M+ US homeowners
Timeline
Jul 2016—Jun 2018
Scope
Consumer IoT product line (Floodlight Cam, Video Doorbell 2 + Elite, Spotlight Cam family, Security System) shipping on fast firmware / back-end / iOS / Android sprints—plus the Ring Style Kit, the company's first design system across iOS and Android.
Responsibility
Design lead and acting PM on hardware launches; redesigned live video and home (the two most-used app surfaces); created and maintained the Ring Style Kit; helped scale the design org 3 → 13.

Context

Ring shipped consumer IoT hardware on aggressive cycles—Floodlight Cam, Video Doorbell 2 + Elite, Spotlight Cam family, and the Security System—with firmware, back-end, iOS, and Android all converging on a hardware launch date. The app's two most-used surfaces (live video and home) were carrying brand-defining moments at a scale that doubled every year, and there was no shared design system to keep iOS and Android coherent as the design org tripled to support the cadence.

Approach

Led design and acted as PM across the IoT product line, working in agile sprints with firmware, back-end, iOS, and Android engineers to keep the shipped experience true to the prototype. Redesigned and shipped live video and the home experience in 2017–2018. In parallel, created Ring's first design system—the Ring Style Kit—mirrored in SwiftUI and Java with shared tokens, distributed across design and engineering, and load-bearing for scaling the design org from 3 to 13.

Impact

Ring grew from 1M to 10M US users between 2016 and 2018. The Style Kit became the shared substrate as the design org tripled, and after Amazon's $1B+ acquisition the work was presented to the IMDb and Amazon Devices & Services teams.

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