Gray joined Perimeter College's English Department in 2003 and was a chair by 2009. She served until 2016.
As her academic performance grew, she created Instructional Technology Coaching to train educators on the latest classroom management and student engagement tools. Carissa Gray covers everything from classroom gamification to image sourcing on ITC. Via ITC, she develops engaging workshops on the classroom experience in higher education and beyond.
Gray taught English at Georgia Perimeter College from 2009 to 2014. She taught English there from 2003 to 2009. In 2001 and 2002, she taught English in Bundang, Korea.