Focused on new ad products for small and medium-sized companies.

I work on cross-platform mobile ad rendering and performance. Typescript, Kotlin, and some Swift.

The team supports Windows, Mac, Linux, Android, iOS, Xbox, and PS5.

I was the team's Android expert and main engineer and owner for Android audio/video performance at Discord.

I designed and implemented Discord's video rendering library for Android which has 100+ million users.

Responsibilities: real-time rendering • encoding/decoding • camera • screen-sharing • audio routing • bluetooth • A/V sync • RTC networking • bandwidth estimation, many simultaneous participants

Image scientists would have a cool idea; I would get it to work well on bad phones.

Architected, implemented, and maintained VSCO's real-time photo and video-processing framework for Android, affectionally known as 'The Stack'. It was implemented in Java, Kotlin and C++, using OpenGL for compute and rendering, and MediaCodec for video coding, editing, and playback.

Responsibilities: photo and video editing • real-time rendering • video color-grading • physical emulation of analog film • sophisticated manipulation and compression of 3D lookup-tables • HSL and clarity tools • multi-dimensional interpolation

Awards: Best Photography App of 2015 by Google Play =^_^=

Implemented GPU acceleration for climate modeling software, porting parts of the WRF (Weather Research & Forecasting) model from Fortran/OpenMP to C/CUDA.