Van der Walt went to Afrikaanse Hoër Seunskool in Pretoria, where he earned a selection into the Blue Bulls side that played at the Under-18 Craven Week competitions in both 2009 and 2010.
[2] Van der Walt appeared in eleven of the Blue Bulls U19 team's matches during the 2011 Under-19 Provincial Championship, helping his side reach the final of the competition, where they lost to Gauteng rivals, the Golden Lions U19.
Van der Walt made his first class debut during the 2013 Vodacom Cup competition, starting in their 40–32 victory over Griquas in Kimberley.
[9] Van der Walt joined Kimberley-based side Griquas prior to the 2015 Currie Cup qualification series, signing a deal until October 2015.
[11] Van der Walt moved to French Pro D2 side Aurillac after the 2018 Currie Cup Premier Division.