| Position | Affiliation | Years |
| Research Assistant | Department of Environmental Engineering, Faculty of Engineering, Dokuz Eylul University | 1989-1998 |
| Instructor | Department of Environmental Engineering, Faculty of Engineering, Dokuz Eylul University | 1998-1999 |
| Assistant Professor | Department of Environmental Engineering, Faculty of Engineering, Dokuz Eylul University | 1999-2003 |
| Associate Professor | Department of Environmental Engineering, Faculty of Engineering, Dokuz Eylul University | 2003-2009 |
| Professor | Department of Environmental Engineering, Faculty of Engineering, Dokuz Eylul University | 2009- |
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