Last month Hussein Mehanna joined Snap as a director of engineering. At
Mehanna joined Facebook in
At Facebook, Mehanna's team built software for making sense of users' text and a system for running employees' machine learning workloads.
Snap launched its own research group in 2015. The head of the group, Jia Li, left and joined Alphabet in November. Her successor, David Salesin, joined in February from Adobe Research, where he led the creative technologies
In the first quarter, Snap's research and development expenses ballooned, costing the company $805 million, up from $28 million a year earlier, primarily because stock awards associated with the company's successful IPO were paid out.
In recent months Facebook has brought