Task: Explanation
Input (English): Avadis "Avie" Tevanian is an American computer scientist. He was senior vice president of software engineering at Apple from 1997 to 2003, and then chief software technology officer from 2003 to 2006. He was a long-standing friend of Steve Jobs. Question: Did both Stephen P. Mugar and Avie Tevanian work in a high leadership capacity at a large firm? Answer: yes
Output (English):  He was senior vice president of software engineering at Apple from 1997 to 2003, and then chief software technology officer from 2003 to 2006.