Hajdar Sadiku is a university professor and Doctor of Science in the field of Civil Engineering, specialized in Concrete Rheology. He lives and works in Pristina. He completed his undergraduate studies at the University of Pristina, Faculty of Civil Engineering and Architecture, graduating on July 8, 1991. He continued his postgraduate studies at the same institution from 1996 to 1998, and on April 1, 1998, he obtained the degree of Master of Science in the field of Concrete Rheology. Dr. Sadiku earned his Doctor of Science (PhD) degree at the University “Ss. Cyril and Methodius” in Skopje, Faculty of Civil Engineering, during the period 2007–2010. He was awarded the doctoral degree on July 14, 2010, with specialization in Concrete Rheology. On December 27, 2011, he was appointed Assistant Professor (Prof. Assoc. Dr.) at the University of Pristina, Faculty of Civil Engineering and Architecture, where he is actively involved in teaching and scientific research.