Harvard Kennedy School’s Belfer Center for Science and International Affairs announces Ezinne Uzo-Okoro, former assistant director-space policy at the White House’s Office of Science and Technology Policy, as senior fellow … Eutelsat Group announces OneWeb Technologies (OWT) President-CEO Kevin Steen becomes also president-CEO Eutelsat America Corp. (EAC); OWT and EAC combined earlier this year … LiveOak Fiber promotes Chief Technology Officer Shane Schilling to chief operating officer ... Tillman Fiber hires J.P. Morgan’s Philip Cusick as chief financial officer ... New hires at VideoAmp, media measurement company: Amy Madden, ex-PwC, as senior vice president-revenue and growth; Jeff Schmidt, ex-Nielsen, as senior vice president-advertisers; and Conor Burgess, ex-Acxiom, as vice president-agency partnerships ... Similarweb, data intelligence platform, taps NielsenIQ’s Susan Dunn as chief revenue officer ... PR agency Treble forms AI practice group and names Vice President Will Kruisbrink to lead it.