At my time at Meta I contributed to the Horizon Engine as well as Home, and 1st Party Worlds within Horizon Worlds. From shaders, to Typescript, owning features, C++, GLSL, 3D Modeling, performance optimizations, giving art direction, as well as VFX and dynamic lighting features for Events within Horizon.
Currently on the Horizon OS team but also contributed to the launch of the new Avatars.