As a practicing professional engineer, Dr. Hazirbaba focuses on applied and experimental research that can be deployed in the field and help practitioners. His research has developed in two main areas. These are: (1) the behavior of saturated sand-dominant soils under cyclic loading, and (2) the improvement of marginal soils through employment of non-traditional stabilization. Dr. Hazirbaba’s research has been successful in securing funds from both state agencies and non-governmental entities in excess of 2 million US dollars. Dr. Hazirbaba is a strong proponent of engaging undergraduate students in research.