Damien Gratadour has been an associate professor at Universite Paris Diderot and research scientist at LESIA, Observatoire de Paris since 2008. Damien holds an M.S. in theoretical physics and a Ph.D. in observational astronomy from Universite Paris Diderot. In the past, Damien has been responsible for the last stages of commissioning of the LGS upgrade to the Altair AO system on the Gemini North Telescope in Hawaii (2006). He spent two years as an AO scientist, with the responsibility of instrument scientist for GeMS, the Gemini MCAO System, a $15 million facility, participating in the various acceptance tests and integration of its sub-systems and first stages of technical tests of the full instrument and most notably the DSP-based RTC. At Observatoire de Paris, Damien is concentrating on high-performance numerical techniques for astronomy for modeling, signal processing, and instrumentation and on the development of observational programs.