Resume says : "Machine Learning Engineer".

Exactly how does that equate to knowing details of Apple's GPU implementation? Apple is a massive company.

The detractors around here would like to cede the absolute maximum possible territory that can be ceded to the copyright bully types, to avoid even the slightest possibility of trouble. "Did you even once enter Caffe Macs and eat a croissant? Stay 100 feet away from every FOSS project for life. Otherwise the beast might threaten us with a lawsuit."