There was one phone screen with a co-founder, followed by three onsite interviews whose panels included two more co-founders, including one who are the hiring manager and is now my manager. As a result, I talked to three out of four co-founders and all three are relevant to the position.
I felt very warmly welcomed and valued. Needing to come back again and again did not feel like jumping through the hoops of a process, but rather the team's needing to have a comprehensive view of a candidate for a key role. I was considering Facebook at the same time, for a role of a TPM in crowdsourced translations in rare languages, so - a unique role - and the team at Moveworks clearly spelled out how the role at Facebook would not be central to Facebook's success while my role here would be indispensable and pivotal to company's growth and maturation, and that sealed the deal for me. "Not a back room role", said my would-be manager.