Daniller started his professional career in Pretoria with the Bulls and after shining early on and making 7 appearances in the 2004 Super 2012 season his career began to falter. Impressive displays in Wellington earned him a move to the Cheetahs. He initially struggled to get game time and spent a spell on loan at the Griffons in 2008.
However, he has since become a dependable player for the Cheetahs and currently boasts a combined total of over 130 caps in all competitions.
In May 2014, it was announced that Daniller would move to Italian Pro12 side Zebre for the 2014-2015 Pro12 season. He played there for one season before returning to South Africa and rejoining the Boland Cavaliers.
Daniller represented South Africa Under 19 in the 2003 Institutional Review Board Under 19 World Championship and South Africa Under 21 in the 2004 and 2005 Institutional Review Board Under 21 World Championships.