National Institute for Space Research, Brazilian Space Agency, São José dos Campos, São Paulo, Brazil
Division of Mission Analysis, Structures and Thermal Control, Senior Researcher and Head, Research development and technical leadership in the area of Spacecraft trajectories, Spacecraft interaction with ionosphere, Spacecraft thermal modeling, Thermo-vacuum chamber design, Spacecraft integration and testing 1979 - 1984
Indian Space Research Organization, India
Aerodynamics Division, Head, Research Development and technical leadership on Launch vehicle performance, design and control, aerodynamics and flow fields 1971 - 1979
Purdue University
School of Aeronautics, Astronautics and Engineering Sciences, Visiting Assistant Professor 1970 - 1971