Information Systems & Technology. They're mostly contractors that are hired to build and work on Apple's internal tools and infrastructure. Buzzfeed News has a

Information Systems & Technology. They're mostly contractors that are hired to build and work on Apple's internal tools and infrastructure. Buzzfeed News has an excerpt [0] from Alex Kantrowitz's book Always Day One [1], which contains interviews with former employees that describes the dynamic. [0] https://www.buzzfeednews.com/article/alexkantrowitz/always-day-one-exclusive-excerpt-apple https://www.buzzfeednews.com/article/alexkantrowitz/always-d... [1] https://www.goodreads.com/book/show/52027218-always-day-one https://www.goodreads.com/book/show/52027218-always-day-one