Simplify the following text for a Grade 9 native English-speaking person.
Original: Ray Ozzie ( born November 20 , 1955 ) is an American software industry entrepreneur who most recently served as the Chief Software Architect of Microsoft .
Simplified: Ray Ozzie ( born November 20 , 1955 ) is an American computer programmer . He is the `` Chief Software Architect '' ( the person in charge of programming ) at Microsoft .