In April 2011 Scott joined Edinburgh as an elite development player. He made his competitive début on 2 September 2011 against Cardiff Blues. His first try came against 2010–11 Celtic League winners Munster. Since then he has become a familiar feature for Edinburgh, combining his upbringing as a stand-off with his strength in the tackle to great effect as a play-making centre with an eye for the try line. Having become a regular feature in the Edinburgh Rugby midfield, Scott signed a contract extension in October 2012 that will keep him at the club until 2015. By the middle of January 2016 he had played 70 times for Edinburgh and had scored 14 tries. On 16 January 2016, an announcement that Scott had signed for Aviva Premiership side Gloucester, to join for the start of the 2016–17 season.His last match for Edinburgh was against the Cardiff Blues on 7 May 2016. On 21 February 2018, Scott re-signed with his hometown club Edinburgh back in the Pro14, on a two-year deal ahead of the 2018-19 season . He made a try-scoring debut for Scotland A in February 2012 in the 35–0 win over England Saxons at Netherdale. The following month he gained his first international cap, coming on as a replacement in the RBS Six Nations match versus Ireland at the Aviva Stadium. His first start for Scotland came in June, on touragainst Australia. In the 2013 Six Nations Championship he started at inside centre in all of Scotland's matches. He appeared for Scotland in a mini-tournament in South Africa in the same year. He went on Scotland's tour to Japan in 2016. in the same year. He went on Scotland's tour to Japan in 2016.