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.

Apple on Tuesday named insider Sabih Khan as its chief operating officer, taking over from Jeff Williams, as part of a long-planned succession. Khan, who has been with Apple for 30 years and is currently the senior vice president of operations,

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