Ciaran Lee and Eoghan McCabe were in a dive bar called Club 93 in the South of Market neighbourhood in San Francisco. It was August 2011 and, just a few days earlier, they’d incorporated a new company together, along with two other friends called Des Traynor and David Barrett. Lee at 30 was the oldest of the four founders while McCabe, at 27, was the youngest. Both had worked together in other tech businesses where McCabe was chief executive with Lee in the role of chief technology officer.  Lee recalls sharing a beer with McCabe in the bar and being…