Expert javascript a must, PHP and/or Java a plus.
It's a tough role, but rewarding. I've held the position for the last year and half, and it's been a good experience. (I'm moving over to YUI.)
Great team, lots of interesting problems to solve.
It's an awesome group with plenty of engaging problems left to solve. Gearing up for the Y! Homepage is only one of them.
More: http://developer.yahoo.com/yap/
If interested, send your resume to rburke at yahoo-inc dot com and include Hacker News in the subject.
You've got someone (reid) here who's currently on the team, and me, who's leaving the team and creating the opening. We're giving you email addresses and offering to send your resume directly to the hiring manager.
It seems like you just want to complain. For the record, yes, Yahoo recruiters do review the applications submitted to the career portal, as well as resumes posted just about anywhere else. Maybe you're just bitter because you weren't hired?
AFAIK, the only development on YUI2 is to fix "significant" (ie, new and/or awful) bugs, and to remove forks and special code that was in place for deprecated browsers (ie, safari 1.0 stuff, mostly.)
All the new development is happening on YUI3.
I'm not an authority on the matter, of course, since I've only been on the team for -1 week ;)