During his early career he played for the Scottish Premiership sides Heriot's Rugby Club, Boroughmuir RFC, Ayr RFC & Glasgow Hawks.
Since 2015 he has represented the Army Rugby Union in their annual match against the Royal Navy Rugby Union. In 2015 he won the Man of the Match in a 36–18 win in front of 80,000 fans at Twickenham, England.[2]
As a soldier in the Royal Scots Borderers, 3rd Battalion He is currently based at Fort George Barracks in Inverness, Scotland.
He played for Bath 7s in the Premiership Rugby 7's Series in 2014.[3][4]
In 2015 he signed for Glasgow Warriors on a two year long contract from the Royal Regiment of Scotland in the British Army, where he played for their rugby team.
Junior Bulumakau won his Glasgow Warriors contract after a successful trial with the club. He played, as a trialist, against European Champions Cup runners-up Clermont in a 2015–16 pre-season friendly for the Warriors; scoring a try against the French opposition.[5]
On 23 May 2017 it was announced that Bulumakau had moved to the Doncaster Knights to play alongside his brother Andrew Bulumakau.[6]
On 12 April 2018, Junior, along with his brother Andrew, signed for Championship rivals Coventry from the 2018-19 season.[7]
At the age of eight, Bulumakau moved with his parents from Fiji to Scotland when his father joined the British Army.[8] He has thus been through the Scottish schooling system and is Scottish qualified, not only on residence. He has told BBC Scotland that he would love the chance to play for Scotland: "It's a massive dream for me; I've been watching Scotland since I was a kid; it would be an honour".[9]
On 25 January 2016, Junior Bulumakau was named in the Scotland Sevens squad for the upcoming Wellington Sevens tournament.[10] He made his international debut in the tournament, confirming his Scottish nationality, on 30 January 2016. He played against South Africa, coming off the bench for his debut. Although Scotland lost the match 28–5, Bulumakau scored Scotland's only try.[11]
