Garr moved to Texas Instruments in 1981.[2]
Garr worked at TI for almost twenty years. She held several leadership positions at TI, including advanced development manager, manager of the Information Technology group and manager of digital imaging.[2] She was the first African-American Level 3 Director of software engineering at TI. At TI Garr launched a minority leadership program that included guest speakers, a sponsorship scheme and professional development for people from minoritised backgrounds.[6] In 1997 Garr was named the "Black Engineer of the Year in Industry" by the council of engineering deans at historically black colleges and universities.[6] She attended the Stanford University Executive Program.[6] Garr returned to TI to lead the engineering teams working on programmes in defence and communications.[1]
In 1998 Garr was recruited by Cisco Systems.[1][7][8] At Cisco Garr led teams that looked after customer satisfaction and corporate quality.[9]