Just "infinitely curious individual" is a bookworm. Hacker would also like to tinker with the rules underlying the systems to see how things might break. So bookworm + tinkering + wants to understand complex systems (hackers call it "to grok"). Systems - not only computer systems, also biological, physical and any kind of complex assemblages of rules.
Still not specific enough and doesn't evoke hackers. I consider myself a hacker but I don't consider myself "infinitely" creative, just creative in technical areas. So maybe technically creative individual? But those are more like Makers.