University of Belgrade,  Civil Engineering Department (with a Dipl. Eng. degree 5 years req.), Major: Structures, Average grade: 9.51 / 10
University of Belgrade, Civil Engineering Department (with a Sc.degree 2 years. req.), Major: Thermoelasticity, Average grade:10/10
University of Illinois at Chicago, department CEMM, USA
Major:  Theoretical and Applied Mechanics, Average grade: 4.93/5

PTT-Post of Serbia
President of Managing board of Public Enterprise PTT-Post of Serbia

Serbian Chamber of Engineers
President of Serbian Chamber of Engineers

Ministry of Urban Planning and Construction
Minister for urbanism and construction, Serbian Government, Prime minister dr Zoran Djindjic

University of Belgrade, Department of Civil Engineering
:: 1979- 88: Lecturer,
:: 1988- 93: Assistant Professor, 
:: 1993- 98: Associated Professor,
:: 1998-present: Full Professor; Course taught: Mechanics, Fracture Mechanics, Plasticity, Energy Efficiency

:: University of Illinois at Chicago, Department CEMM, 1985-1987, USA  Research  assistant and graduate student (advisor prof.  Dusan  Krajcinovic).  Research  in Damage Mechanics.

:: University of Illinois at Chicago, Department CEMM, USA 1988 (3 mon.), 1989 (3 mon.), Postdoctoral fellow

:: Arizona State University, Dep. MEA, 1991-1992 (one yaear), USA, Visiting scholar

:: Prize of  the Assembly  of the City of Belgrade  for research:  "20 October", (with  Prof D. Krajcinovic) for  the  book "Elements of Fracture Mechanics",1990.

:: Prize of the Chamber of the City of Belgrade  (for Master's deg. work), 1984.

:: Prize "Dr R. Stojanovic" for the  best  paper, YU Congress of Theoretical and Applied Mechanics,  V. Banja 1988. Books:

:: D. Sumarac, D. Krajcinovic, Elements  of  Fracture Mechanics, (InSerbian) Naucna knjiga, Beograd, 1990.

:: R.Cukic, N.N. Veljkovic, D. Sumarac, Thermoelasticity, (In Serbian), Mecha. Engineering, University of Belgrade, 1993. International journals:

:: Associated editor for the International Journal of DAMAGE MECHANICS (Techn. publ. comp., USA) Advisor:

:: For the M.Sc. degree (two students): Sasa Stosic and Nina Kordic,

:: For PhD degree (two students): Lenart Djerdj 1996., Ljudmila Kudrjavceva 2007.

:: 103 publicatiouns, more than 40 in International jorurnals.

:: More than 254 citations (SCI Index) within  the period 1988-2009.

:: Engaged in the design of concrete and steel structures in Serbia, Russia, Irak, Algeria.