Jennings, 52, had a nine-year NFL playing career, spending six of them with the Chicago Bears. He also spent time in the World League of American Football (1991) and the UFL (2001).
He most recently went back to Clemson, where he played college football, to finish his business degree, while also serving as an undergraduate tight ends coach under head coach, Dabo Swinney.
Jennings served as a scouting intern with the Bills during last year’s training camp and preseason under the Nunn-Wooten Scouting Fellowship, run by the NFL since 2015.
“Keith interned with us last year and we really liked what saw from him," said Bills GM Brandon Beane.