Sure does.
My Engineer hangs at the back of the Zerg, throwing nades upon enemies and allies alike. I’ll throw a net here and a crate there but if my buns are about to be fried, you best believe I’m standing behind that Greatsword Guardian. When all else fails, block off my escape route and head for the nearest vantage point and/or meatshield.
I don’t get things done well, but I get it done.