Johnson-Farrell begins his sixth season at USF where he adds the Special Teams Coordinator responsibility to his role as coach of wide receivers and serving as USF's NFL liaison.
During his time at USF, the Cougars have made three playoff appearances and his receiving groups have been among the best in the NSIC. A year ago, he had two receivers to rank in the league's top 10 in catches or yardage. In 2018, Michael Maxwell and Nate Johnson (2018, 2019) were named All-NSIC performers under Johnson-Farrell's guidance.
A native of Odenton, Maryland, Johnson-Farrell was a coach on the 2016 NSIC championship team, in which he mentored receivers including all-league performers Josh Angulo, Brady Rose and Kyle Groeneweg. The Cougars won the NSIC with a perfect 11-0 league mark and finished 12-1 with a berth in the NCAA DII "Sweet 16" while earning a No. 8 ranking in the final AFCA Poll.

A native of Odenton, Maryland, Johnson-Farrell was a coach on the 2016 NSIC champions team, in which he mentored receivers including all-league performers Josh Angulo, Brady Rose and Kyle Groeneweg. The Cougars won the NSIC with a perfect 11-0 league mark and finished 12-1 with a berth in the NCAA DII "Sweet 16" while earning a No. 8 ranking in the final AFCA Poll.
He earned his Bachelor's degree in human development in 2012 from the University of Rhode Island.
At URI, he started 11 games as a senior at wide receiver, accumulating 44 catches and 567 receiving yards with four TDs. He also totaled 27 kickoff returns for 653 yards and 12 punt returns for 91 yards. He became the sixth player in school history to reach 4,000 all-purpose yards and moved into fourth place on the school's all-time receiving list with 162 catches. He was a 2012 all-conference selection at wide receiver and also a 2012 First Team All-new England performer. He had 400 receiving yards as a junior. As a freshman
, he caught at least one pass in every game and led the Rams with 1,478 all-purpose yards, in which he ranked third in the Colonial Athletic Association (CAA). During his freshman season, he was chosen as the CAA Football Rookie-of-the-Week. At the end of the season, he was selected CAA Football Third Team All-Conference.

In high school, Johnson-Farrell was a four-year player and earned a three-year varsity letter. During his senior year, he established single-season school records for receptions (103), yards (1,394) and touchdowns (25). He set Maryland Public School state records for single-season receptions (103), career receptions (174), single-season touchdowns (23) and career touchdowns (40). The Baltimore Sun and Baltimore Examiner selected Brandon as First Team All-Metro in 2007. He was voted First Team All-Metropolitan Area by the Washington Post and first team all-state. In addition, he was chosen to the Super 22 Senior All-Star Team by the Baltimore Sun in 2007.
He and his wife, Amanda, live in Sioux Falls, He is the son of Tracie and Brian Johnson-Farrell and has a brother, Brian.