"It's probably human resource jargonese for a sanitary engineer. Who da heck WRITES this stuff?"
Not that you'll understand much of it, BB, but the explanation is neither "jargonese" or "stuff" ... it's just your basic computer science language:
http://en.wikipedia.org/wiki/Back-endIf you aren't qualified to apply for the job, you probably aren't qualified to comment on it, either.