I'm CTO of a machine learning/computer vision company, and quite a bit of the team's work is "gluing libraries together" -- but even so, it's an intensely interesting, rapidly evolving field. Plus I get to play with pixels and cameras and VR. That being said, I paid my dues in the 90's and early 2000's doing web services and boring J2EE and gluing Java to native and PHP to Perl to CGI [bleech]