Sayonara has spent much of her career in the alternative investment sector. He founded MIEL Capital, a real estate broker that advises international institutional clients in their alternative investments in France and Italy. From 1997 to 2010 she was First Vice-President for Investments at Merrill Lynch. In 1997 she was Sales Assistant for derivative products on exchange rates in CommerzBank. From 1989 to 1995 she was International Consultant at Bull, a leading European company in the multimedia and IT sector. Sayonara holds a degree in Mathematics and Computer Science from the University of Tel-Aviv and a Masters in Finance from M.S. ESSEC Business School.