Apple COO Jeff Williams is retiring after 27 years. His exit marks another recent major leadership shift at the company.

Sabih Khan was 10 when his family left Uttar Pradesh’s Moradabad for Singapore in 1976. He was just another bright-eyed Indian child, landing in a city bursting with ambition. He barely spoke English then.

Since joining Apple in 1995, Sabih Khan played a key role in delivering each of Apple's innovative products to market.