Kubista holds several positions and advisory roles within the scientific and biotechnology communities including: Roche, ThermoFisher, Qiagen, Bio-Rad, and RealSeq Biosciences. He is also a member of the Scientific Advisory Council of Genetic Engineering News.
Kubista has also been involved in the establishment of modern molecular diagnostics in developing countries. Since 1999, he has served as an advisor to UNESCO, providing guidance and assistance to countries such as: Libya,  Egypt, Iran, Grenada, and Ghana.
Kubista is an expert advisor for the European Commission Research Directorate General. He also works as a special consultant in the Life Science field for AFRY and Pharma Relations. Kubista advises the United Nations Educational Scientific and Cultural Organization (UNESCO) and is part of the scientific advisory board for the International Biotechnology Research in Tripoli, Libya, under UNESCO.