Answer by Daniel Tunkelang:
I can only speak for my own decision to leave Google. It's a great company full of amazingly talented people with access to incredible resources.
So why leave? Google was simply too big for me. I'd come from Endeca, a startup that I helped grow from a founding team to 500, and I didn't realize how different it would be to join a large company where the connection was inherently less personal. It simply wasn't a good fit for me.
I left Google after a year to join LinkedIn — then a 700-person company — and my role there was much more expansive and more personal. In my 4.5 years there I worked with groups across the company, getting involved any effort where I could productively contribute. It was awesome!
But growth happens. By the time LinkedIn reached 7000 people it wasn't the same company for me. I was ready for something small again — and something far more personal.
So I joined the team at Lyra Health as CTO last month, where I'm again involved in everything we need to do to succeed in our mission — which is to help millions of people by transforming behavioral health.
In short, there's no such thing as a dream company. It's up to us to dream, and to find the opportunies that align with those dreams. Good luck finding yours!