He began his coaching career at his alma mater (Miami) working as a graduate assistant from 2005-2006.[5] In 2007 He moved on to Florida International University where he served as defensive backs coach and in his final season with the team, the special teams coordinator. After 6 years at FIU, in 2013 Jeff starting a three-year stint as cornerbacks coach at the University of Texas at San Antonio.
This was followed by two seasons with the Indianapolis Colts of the NFL under head Coach Chuck Pagano who was his position coach when he played at Miami. In 2016 he served as an assistant to head coach,[6] then in 2017 as a defensive quality control assistant.
He spent 2018 as the cornerbacks coach at Boise State. In his lone season on Boise State’s staff, the Broncos ranked among the nation’s top 40 teams in third-down defense (.311), takeaways (24), scoring defense (22.1 ppg) and total defense (355.9 ypg).
Jeff joined Georgia Tech in 2019[7] under head coach Geoff Collins who had previously coached with in 2010, as the team’s cornerbacks coach and defensive special teams coordinator[8] (kickoff and punt coverage).
In his first season as Yellow Jackets’ cornerbacks coach, Popovich mentored an all-ACC selection in CB Tre Swilling. As defensive special teams coordinator, he oversaw a unit that blocked three kicks (tied for most in the ACC and 14th nationally) and improved its average kickoff return allowed by nearly six yards over the previous season (from 26.27 ypr in 2018 to 20.91 ypr in 2019).
On November 28, 2021 Jeff was fired by Georgia Tech.[9]