I'm a hybrid of self-taught and formally trained developer, with a chaotic twist. Most of the time, I do normal work. Sometimes, the megacorp hits a problem that it cannot solve; when that happens, I'm summoned from high-up, summarily briefed and then air-dropped like a paratrooper into unknown territory.
I'm the one called in when there's no one else left to call. There's nothing I can't seem to solve under these conditions, but I tend to deliver Faustian solutions: I'll save the day, but it will cost you. I won't go into details here, but some of my unholy and heretical contraptions I've produced in those situations took years to subsequently defuse.