(Telecompaper) Sprint announced the appointment of Tarek Robbiati (50) as its new chief financial offer. He most recently was CEO at FlexiGroup, an Australian consumer finance company specializing in leasing. Previously he held senior executive positions, including group managing director and deputy CFO, at Australian carrier Telstra and was CEO of CSL, its Hong Kong mobile subsidiary. In addition, he served as head of corporate finance for Orange PLC. He will report to Sprint CEO Marcelo Claure when he joins the US operator in late August. The current CFO, Joseph Euteneuer will leave the company following an orderly transition of responsibilities, Sprint said, without giving a reason for his departure. In addition, Gunther Ottendorfer (46) is joining the company as chief operating officer, technology. He previously served as CTO for Telekom Austria Group and managing director of Optus Singtel in Australia. Ottendorfer will join Sprint immediately and will report to Claure. He will lead a newly created Technology Office with responsibility for all network planning and deployment functions, as well as IT. Also as part of these changes, John Saw, Chief Network Officer, is promoted to Chief Technology Officer, reporting to Ottendorfer. Junichi Miyakawa, Technical Chief Operating Officer, will become a senior technical adviser in the Office of the CEO and a liaison between Sprint and its parent company Softbank for network strategy.