Since the death of Steve Jobs, Apple has had a few shakeups at the top of its executive ladder. CEO Tim Cook has introduced several changes to the company's leadership which have been seen as him leaving his own mark on the tech giant. One of the most notable actions was the removal of Scott Forstall, the software engineer who headed up the division tasked with creating and maintaining iOS. In his place, Jobs put two Apple veterans in charge: Jony Ive and Craig Federighi.

Ive is something of a legend in Silicon Valley. Having been the principal design guru at the company, Ive was largely responsible for the teams that created the distinct minimalist look of the iPod, iPhone, iPad and Mac computers of the last decade. If it's possible to become a celebrity industrial designer, he has probably come closer than anyone in the history of the field.

Federighi, however, is lesser known outside of the tech industry. A graduate of U.C. Berkeley, he originally worked with Jobs at the latter's failed NeXT educational computing company. After spending several years at software company, Federighi was brought back to Apple to work on iOS and OS X.

After the departure of Forstall, who attracted criticism for the failure of Apple Maps, Ive was given responsibility for the design and user experience aspects of iOS while Federighi was tasked with managing the software team. Since this change, he has become one of the main salesmen for the redesigned, "flat" look of iOS and the company as a whole in the post-Jobs era.

As Forbes notes in a brief profile of Federighi, he has been largely successful in creating a good rapport with developers and the larger Apple community, but he faces a lot of pressure to deliver improvements to the software behind the iPad mini and MacBook Pro. To experience those improvements yourself, head over to the PortableOne store to check out the latest Apple technology.