1. Quantity Surveyor in Gallifordtry, Construction Company. U.K.
2. Asst. Prof. at Yildiz Technical Univ., Honorary Lecturer at Liverpool John Moores Univ., Yildiz Technical University Department of Civil Engineering, Construction Management Division, Davutpasa Campus B Bloc, 34210 Esenler-Istanbul, Turkey.
3. School of the Built Environment, Liverpool John Moores Univ., Cherie Booth Bld., Byrom St., Liverpool, L3 3AF U.K.