Born in Perth, Western Australia, Dickson was raised in New Zealand and attended Otago Boys' High School.
Senior career
He made his senior debut playing for the Otago Razorbacks in the 2014 ITM Cup where he made 3 substitute appearances before becoming more of a regular the following year, featuring in 9 games, 7 of which were from the start and scoring 2 tries. 2016 was a pretty good year for the Razorbacks as they reached the Championship final before losing to North Harbour and Dickson was a key player for them in the second row, making a career-high 10 appearances. Dickson made 50 games for Otago in 2019.[4]
Super Rugby
Solid performances for Otago over the course of three provincial seasons put him on the radar of 2015 Super Rugby champions, the Highlanders, and he was signed to a contract with the franchise ahead of the 2017 season.[1]