Viro enables non-gaming developers to create immersive apps using familiar tools and frameworks. Viro powers the AR/VR experiences of large brands like Coca Cola, Paramount Pictures, and Dior, of large institutions like the American Museum of Natural History, and is used by thousands of emerging innovative AR developers.

• Designed and engineered Viro Body Tracking, a machine-learning based approach to body joint recognition and tracking, using state of the art neural networks. This technology was used to power Viro's Posemoji app for iPhone-based motion tracking and effects.

• Designed and engineered the Viro Renderer, a full-stack physically-based 3D renderer. Written in C++ and operates on iOS and Android. Includes classical and physically-based lighting and materials, has an easy-to-use scene graph API, is heavily optimized under-the-hood for 60 FPS, and integrates with both ARKit and ARCore for spatial technology.

• Designed and engineered ViroReact, a React-based binding to the ViroRenderer that enables React developers to build AR and VR applications simply and declaratively.

• Designed and engineered ViroCore, a Java-based binding to the ViroRenderer, essentially providing a "SceneKit for Android".

Promoted to Principal Engineer for work on Amazon Maps.

• Technical lead for 80 full-time engineers.

• Took on a wider role advising on 3D graphics and client-side decisions across Amazon.

• Migrated Amazon Maps from the devices team into AMZL (Amazon Logistics), where it became a core technology powering Prime Now.

Post-acquisition, grew UpNext into Amazon Maps, becoming lead engineer for Amazon Maps and expanding the team from 5 FTE to 80 FTE.

• Scaled UpNext to full feature parity with Google Maps, successfully launching Amazon Maps and the Amazon Maps API on the Fire phone and Kindle devices.

• Designed and engineered a cross-platform iOS and Android-based OpenGL native maps renderer, with support for 3D buildings, roads, dynamic labels, real-time traffic, and turn-by-turn navigation.

• Designed and engineered a distributed world-wide mapping cartography and tile generation system, for building vector-based mapping tiles at 17 levels of detail.

Founded in 2005, acquired by Amazon in 2012. UpNext was the first of its kind vector-based mapping platform. Acquired by Amazon to power Kindle maps and “last mile” delivery maps.

• Designed and engineered client-side (C++ / OpenGL) map renderer for Android, iOS, and web, along with a suite of cartography tools for designing map tiles.

• Built distributed, scalable tile generation system on AWS (EC2 + S3), covering mapping tiles for the United States at 17 levels of detail.

Products built on UpNext included the Verizon Maps app, NFL Super Bowl apps, and Telefonica maps.