Nearly a week since he agreed to come to Oregon, Tim DeRuyter is officially the school’s new defensive coordinator.

The Ducks officially named DeRuyter, who served at Cal the past four seasons, their new defensive coordinator and outside linebackers coach on Thursday.

“We are excited to add a coach of the caliber and experience as coach DeRuyter to lead our defense,” Oregon coach Mario Cristobal said in a statement. “He is a proven difference maker with a track record for developing players to their full potential, and he has accelerated significant improvement in all of his stops as a defensive coordinator. We look forward to the significant impact coach DeRuyter will have on the Oregon football program and all of his contributions in taking our defense to the next level.”

Previously the head coach at Fresno State from 2012-17 and defensive coordinator at Texas A&M, Air Force, Nevada, Ohio and Navy, DeRuyter has been a defensive coordinator in 20 of his 31 seasons as a college coach, including the last 19 as either a defensive coordinator or head coach.