Vivacity Infrastructure Group, provider of communications infrastructure services, names Christopher Rabii, ex-FiberLight, president-CEO … TollBit, AI content licensing platform, adds Campbell Brown, former Meta vice president-global media partnerships, as a senior adviser ... Qubrid AI, generative AI company, adds Google’s Ujjwal Rajbhandari, also former Dell, as chief technology officer and co-founder ... Internet company Expereo promotes Chief Revenue Officer Ben Elms to CEO, succeeding Irwin Fouwels who moves to executive chairman, both effective May 1 ... Brightcove, streaming tech company, hires EverQuote’s John Wagner as chief financial officer ... Cyware, threat intelligence management platform, taps former High Wire Networks Chief Revenue Officer Stephan Tallent as head-managed security service providers program ... Qurate Retail Group promotes Bill Wafford to chief administrative officer in addition to his current role as CFO ... Billy Boozer, who left as Truth Social chief product officer in 2022, launches new company, Letr, billing it as “a censorship-resistant alternative to Substack” ... Wipro advances Malay Joshi to CEO, Wipro Americas 1 Strategic Market Unit, succeeding Srini Pallia, now Wipro CEO-managing director (see 2404080025); Malay will also join Wipro's executive board.