Apple has hired one of ARM Holdings Inc.’s top chip engineers as the iPhone maker looks to expand its own chip development to more devices, including the Mac, and new categories like a headset.

The company hired Mike Filippo in May for a chip architect position, according to his LinkedIn profile. At ARM, Filippo was a lead engineer behind chip designs that power the vast majority of the world’s smartphones and tablets and was leading a new push into parts for computers.

Prior to his work at ARM, Filippo was also a key designer at chipmakers Advanced Micro Devices and Intel. ARM confirmed Filippo’s departure.

Gerard Williams III, Apple’s head architect of chips used in the iPhone and iPad left Apple earlier this year. Apple’s A series chips power its mobile devices using ARM technology. Its Mac computers have used processors from Intel.

The company initiated a plan several years ago to replace Intel chips in its Mac computers with processors based on the ARM architecture as early as 2020. Filippo’s experience in more advanced chips like those in servers would assist in that effort.