[3] He has been employed as an adjunct professor at the Mendel University in Brno in Czech Republic (Department of Wood Science), full professor and head of the Wood Technology and Wood-based Composites Unit at University of Göttingen, R&D Manager at Funder Industries, and key researcher in the Austrian research institute, Wood K plus.

Wimmer is an IUFRO office holder in wood technology,[4] and he has been a member of editorial boards in several scientific journals, including Les/Wood, Wood and Fiber Science, Frontiers in Chemistry, Southern Forests, Springer Series in Wood Science, and Dendrochronologia.

In 2021/22, he served as the president of the International Society of Wood Science and Technology.

[5] His research teams have won awards in the area of biomaterials and wood technology.

[10] In October 2023, a meta-research carried out by John Ioannidis et al. at Stanford University included Rupert Wimmer in Elsevier Data 2022, where he was ranked at the top 2% of researchers of all time in wood science (forestry – polymers), having a c-index of 3.348[11] He also possesses an h-index of 54 and more than 8,500 international citations at Google Scholar.