Jasminka Najcer Sabljak was born in Našice in 1975. After finishing the elementary school in Đurđenovac and secondary school in Našice, she studied at the Faculty of Humanities and Social Sciences, University of Zagreb and received a BA degree in Art History and History in 2000. Upon graduating, she was employed at the Isidor Kršnjavi Secondary School in Našice, as an art history teacher.
Since 2001 she has been working in the Fine Arts Gallery in Osijek. In 2008 she as appointed senior curator in charge of the Collection of the 18th -and 19th Century Paintings, Drawings and Prints.
She attended a graduate programme in art history at the Faculty of Humanities and Social Sciences, University of Zagreb, and in 2007 received an MA degree. The title of her thesis was The Art Heritage of the Pejačević Family from the Gallery of Fine Arts in Osijek (supervised by Professor Zvonko Maković). The same professor supervised her work on her doctoral thesis entitled Art Collections of Landowning Families in Slavonia and Srijem.
As a curator at the Gallery of Fine Arts Osijek (GLUO) she conducts research into the local cultural heritage, specialising in the aristocratic families in Slavonia and Srijem in the 18th and 19th centuries. She has published a number of professional papers on the topic.
She participated in the organisation of the exhibitions Slavonia, Baranja and Srijem – Sources of European Civilisation, Klovićevi Dvori Gallery Zagreb; The Legacy of the Noble Family of Prandau-Normann, MV, Valpovo; Permanent Display, Vukovar Museum – Castle Eltz).
In 2003, she initiated and has since then managed the event Days of Prints in GLUO, the aim of which is popularisation of graphic arts. Since 2006, she has been teaching art history at the Music Department of the Academy of Arts in Osijek.
In 2014, for the achievements in the work on the exhibition about the Pejačević family, she received the annual Osijek and Baranja County Prize for Culture, the Radovan Ivančević Charter of the Association of Art Historians of Croatia for advancing and promoting art history, and the annual Prize of the Croatian Museum Association for an investigative exhibition project.