The podium performance moves the QAS athlete into second place on IBSF end of year rankings in the new Olympic sport which will make it's debut in Beijing 2022.
Walker finished just 0.54 seconds behind Swiss sliders Melanie Hasler and Martina Fontanive who tied for first place.
"This season we set our standards high, despite there being a global pandemic and this resulted in our biggest and best season by far" Walker commented.
"Medals and top ten finishes against the most competitive fields the sport has seen in many years, so we are very proud of what we have been able to achieve for Australia."
"Hopes are that we can just go from strength to strength as a team.
"This will require a lot of hard work and dedication to our sport and finding sponsors to help us go even faster (we are going to need the support that’s for sure) but this season has really motivated us and we are going to put everything we have into this Olympic year."
Walker had planned to finish her two woman bobsleigh season at the final event of the World Cup season in Konigsee, but the event was cancelled due to a track temperature equipment malfunction.
With the season now finished, Walker will now return back to Australia.
IMAGE: Bree Walker celebrates with her third place trophy in Königssee © Bree Walker Instagram