Sakari is Managing Editor of Edith – Critical Editions of Finnish Literature at the Finnish Literature Society (SKS), President of the European Society for Textual Scholarship (ESTS), and a founding member of the international GENESIS conference series. His research brings together literary criticism and textual scholarship, with interests spanning poetry and poetics, nonsense literature, the history of translation, nineteenth-century editing, and methodological questions in textual scholarship. Within scholarly editing, he specializes in nineteenth-century Finnish literature, particularly the works of Aleksis Kivi and Minna Canth. He currently serves as Principal Investigator of the research project Traces of Translation in the Archives (SKS), which focuses on Finnish archival materials. His publications include extensive work on nineteenth- and twentieth-century Finnish literature. He has edited several scholarly volumes, including Genetic Criticism in Motion: New Perspectives on Manuscript Studies (2023). He has also held appointments as Adjunct Professor at the University of Helsinki, the Theatre Academy, and the Sibelius Academy, and has served as Chair of both the WSOY Literary Foundation and the Seurasaari Foundation.