Biljana Tojtovska is born in 1980 in Skopje. She has finished her primary and secondary education in Skopje. She was part of the Macedonian olympic team at the International mathematics olympiads for high school students. She took part in many Balkan and International olympiads, where she was awarded an honorable mention and 2 bronze medals. In 1999 she started her studies in pure mathematics at the Faculty of mathematics and natural sciences in Skopje. She graduated in 2004 with a 9.88 grade average. As a DAAD scholarship holder she continued with her Master studies in stochastics and financial mathematics at the Technical University of Kaiserslautern in Germany. In 2007, she completed her studies with 1.0 grade average, writing the thesis "Martingale decompositions with application in finance", having Prof. Dr. Ralf Korn as a supervisor. For her academic achievements she was recognized as the best student at the Department of mathematics. During her stay in Germany she has worked at the ITWM Fraunhofer Institut on the project "Asset liability managment". She took part in different seminars, including the "Equity derivatives" workshop, organized by Credit Suisse in Frankfurt. After her return in Macedonia she worked in the Ministry of Finance, in the Middle office of the Department of public debt of Macedonia. Since the beginning of 2009, she is working as a teaching assistant at the Institute of informatics in Skopje. She was part of the following lectures – linear algebra, discrete mathematics, calculus, probability and statistics, information theory, operation research, numerical mathematics. Her research interests are in the field of probability and statistics, stochastic differential equations and stochastic modeling with applications in different fields ( biology, medicine, finance, informatics ). She is a PhD student and works with Prof. Dr. Svetlana Jankovic, as a supervisor, on the topic of stability of  on models of stochastic neural networks. She has published several papers and took part in many international seminars, conferences and workshops. She also took in the organization of mathematics competitions in Macedonia.