News of Lamiraux's exit from Apple broke on Sunday, while the key iOS engineer's LinkedIn page has also been changed to reflect his retired status.
Lamiraux actually retired a "couple of weeks" ago, and officially left Apple shortly after the latest iOS 7.0.3 update was released, reports 9to5Mac.
Working as vice president for iOS Apps and Engineering, Lamiraux was in charge of feature development and distribution, bug fixing and app-building frameworks for Apple's mobile operating system. As he answered directly to SVP of Software Engineering Craig Federighi, who is now in charge of both iOS and OS X, Lamiraux took on more responsibility in developing Apple's mobile OS.
Lamiraux first joined Apple in 1990 as a software engineer for the Mac platform, which would later be renamed OS X. In 2000, he earned a managerial position for OS X platform experience before becoming director of engineering for that department in 2004.
In 2005, he switched over to iOS under the important Apps and Frameworks section as director of software engineering, and became vice president of the department in September 2009.
It is not clear who will fill Lamiraux's now vacant position.