Consultant in the United States
Dr. Seuss said that and it is a great way to think about your life and your career.
I specialize in matching great designers with great startups. My mountain is finding and making those great matches for the benefit of all involved.
You know you are happy at your work if you whistle on your way there but more importantly, if you still are whistling on your way home. The best company is not the best for you unless you are happy. Find out what makes you happy, find that mountain, and go climb it.