Williams attended Florida International University from 2009 to 2012. During his tenure, he collected 150 total tackles, including 45 for loss, 18 sacks, seven pass deflections and two forced fumbles. He also record 18.0 sacks, which is second in school history. He earned All-Sun Belt honors three times during his career.
Williams played mostly special teams, but was forced into the starting lineup due to the injuries of Jarrett Johnson and Melvin Ingram. He played 13 games, starting 6, collecting 10 tackles, 1 sack, and a forced fumble.