Twilio is one of those Silicon Valley giants you never hear about unless you work in IT. Its technology allows software developers to build products that interact with customers’ phones through calls and text messages. Increasingly, it is expanding into broader customer communications and data analytics, competing with the likes of Irish-founded Intercom.  San Francisco-headquartered Twilio had $1.8 billion in revenue last year and it is worth over $50 billion on the New York Stock Exchange. Following a familiar pattern, it runs non-American sales through its Dublin international headquarters, where Twilio Ireland employs over 130 people at its Silicon Docks…