Backlight, media and entertainment technology company, names Telestream’s Benjamin Desbois chief operating officer ... IBM elects Mastercard CEO Michael Miebach to its board, effective Oct. 30 ... CDW adds Kelly Grier, recently retired Ernst & Young U.S. chair and managing partner, to its board ... Movie theater owner Marcus Corp. elects Thomas Kissinger, its senior executive vice president-general counsel, to its board ... Synopsys names PTC’s Jill Larsen chief people officer ... RealBlocks, web-based private equity platform, hires Addepar’s Ron Barasch as chief marketing officer ... E-commerce platform BigCommerce names Delphix’s Steven Chung president, effective Aug. 14 ... MacStadium, private Mac cloud provider, adds World Trade Center Atlanta’s Sherry Grote, also former Kore Wireless, as head-global marketing ... Monroe Capital names Jeff Kaye, ex-Wells Fargo Capital Finance, managing director-tech finance originations group.

Executive search firm Russell Reynolds Associates taps Henry Topping, from Korn Ferry’s global media and entertainment practice, as a managing director focused on media clients ... Cybersecurity company Resecurity adds retired Marine Maj. Gen. Richard Lake, ex-Booz Allen, as a senior adviser ... Newly promoted at JMI Equity, growth equity firm focused on software company investments: Lindsay Mehta to director-investor relations and marketing; Christian Kurth to principal; and Dina Berdichevsky and Josh Wang to vice presidents ... Starpower Home Entertainment Systems promotes Brandi Thompson to vice president-VIP services ... BT Group announces Telia CEO Allison Kirkby as CEO, succeeding Philip Jansen by end of January; Jansen will then help with transition until his retirement in March ... Orbit Fab, on-orbit refueling services provider, names Shawn Hendricks, from Terran Orbital, its first chief operating officer.