Some of the better humorous ones I've heard have been
- Lord High Breaker (head of Q/A)
- Grand Visor of Machinations (one of eduardo's titles)
- Chief Peon (over all the other Peons)
I actually prefer serious titles given that I usually have to talk to clients, etc.
- Lead Systems Analyst
- Senior Developer
They describe the job, not the tools and don't require an explination when you give someone your card :)
If you need a semi-serious one how about 'Perl / RDBMS Developer'?
OmG! They killed tilly! You *bleep*!!