Twiangulate:
Twiangulate allows you to search and compare Twitter users by number of followers, mutual followers and biography keywords, also works with jobs
TweetMyJobs
TweetMyJOBS integrates with Facebookto find where you have inside connections at companies that are hiring and facilitates introductions for you. TweetMyJOBS will send you recommendations and instant notifications where you want them.
Prefer to find jobs through Twitter? TweetMyJOBS shows you which accounts to follow. TweetMyJOBS also lets you distribute your resume across the social web at the push of a button so that employers can reach out directly to you!
TwitterJobSearch:
Job search engine for Twitter
NearByTweets:
search Twitter by keyword and location