Damien used to work for Iris Associates, where he coded all kinds of stuff for Notes and Domino. The two things most Notes developers thank him for are the DatabaseDesign?
class and the new formula engine he coded for Notes release 6.x. The latter is an amazing piece of work and finally gave @formula developers things like @For, @While, @Sort, and so on. Marvellous.
The DatabaseDesign? class is less useful in these days of DXL, NotesNoteCollection? objects and the like, but is still a pretty nifty piece of work. You can read more and download the file from the LDD Sandbox
Damien now works for MySQL and is the author of the extraordinary CouchDb project
Damien's website can be found at damienkatz.net