Sesilja Aranko

Assistant Professor

Aalto University

Sesilja Aranko is an Assistant Professor in the Department of Bioproducts and Biosystems at Aalto University, Finland, where she leads a research group at the interface of protein engineering and biomaterials. Her group develops Catcher/Tag protein-ligation pairs and post-translational modification tools for recombinant production to program the structure and function of proteins and protein-based materials, with a particular focus on engineered silk and collagen. Her lab also builds ultra-high-throughput screening platforms based on bead display and FACS to discover and evolve secreted proteins.

Aranko earned her PhD in Biosciences from the University of Helsinki in 2014, working in Dr. Hideo Iwai’s group on protein splicing and inteins. She then continued as a postdoctoral researcher with Prof. Markus Linder, studying biomaterials, including a period at EMBL Hamburg focusing on protein crystallography. She became Assistant Professor at Aalto University in 2024, where she leads the Cellular Engineering research group. Aranko has been awarded several major personal research grants, including a Novo Nordisk Foundation Emerging Investigator grant.