Dr. Marjanović is a Research Associate at the Faculty of Medicine, University of Belgrade. She is currently engaged in the Laboratory for Molecular Genetic Diagnostics of Neurological Diseases at the Neurology Clinic, University Clinical Center of Serbia, bringing over 10 years of expertise in the genetics of neurological disorders.

She completed her graduate and doctoral studies at the Faculty of Biology, University of Belgrade. Her PhD research focused on the prevalence of hexanucleotide repeat expansions in the C9orf72 gene in patients presenting predominantly motor and cognitive-behavioral symptoms. Her earlier scientific work was dedicated to the application of diagnostic techniques in neurogenetics, particularly fragment analysis of hexanucleotide repeats in the C9orf72 gene.

Dr. Marjanović has contributed to three research projects funded by the Ministry of Science, Technological Development, and Innovation, as well as one project supported by the Serbian Academy of Sciences and Arts. She is currently a participant in the International Genetic Frontotemporal Dementia Initiative (GENFI), a collaborative project aimed at advancing the understanding of the genetic basis of frontotemporal dementia.