Egan: Giving 2.0: Shopify boss donates $500K to create synagogue in Sandy Hill

Harley Finkelstein is part of a new generation of philanthropists in town.
The kind who wears a black T-shirt to work, or commutes on a motorized skateboard, or rolls in a Mercedes-Benz ragtop coupe; the kind who ditches law to join a startup in 2010 in little offices over a restaurant and, eight years later, is chief operating officer when the company goes gonzo-global with 3,000 employees.
The kind who does it all before age 35. Yeah, that kind.
So now it’s time to give back, two-point-o