Barras was employed as a track cycling coach at the Western Australian Institute of Sport from 1995 to 1998 where he coached Ryan Bayley. In 1999, he was appointed coach with Great Britain's sprint cycling program and his athletes - won gold (Jason Queally) and silver medals (team sprint) at the 2000 Sydney Olympics. In 2001, he was appointed Australian Institute of Sport / Cycling Australia track sprint coach.  He had a very successful 2004 Athens Olympics with Ryan Bayley winning two gold medals, Anna Meares one gold medal and one bronze medal and Shane Kelly winning a bronze medal.  After the being track sprint coach at the 2008 Beijing Olympics, where the Australian team won only one track medal, he transferred to Australia Institute of Sport / Cycling Australia women's road cycling program.    He was women's road coach at the 2012 London Olympics and 2016 Rio Olympics.
In 2002 and 2004, he was named Australian Institute of Sport Coach of the Year.
- 2004 Australian Olympic Team Handbook. Sydney: Australian Olympic Committee. 2004. p. 109.
- "The experts behind our Olympic champions". Body and Soul website. Retrieved 19 September 2017.
- "HPU Staff". Cycling Australia website. Retrieved 19 September 2017.
- "Barras changing roles". Cycling News website. Retrieved 19 September 2017.
- "Barras leaves Cycling Australia to lead New Zealand programme". Cycling News, 10 November 2017. Retrieved 12 November 2017.