NEW YORK (TheStreet) -- The job market has improved and hiring has picked up. Companies that were sidelined are now recruiting candidates to fill positions that have been on hold for years. Their appetite is enormous, particularly for individuals with highly specialized skills in areas like data security and financial engineering. And as summer fast approaches, there will be a secondary spike in hiring for seasonal jobs.

Jobs are readily available but only for those candidates who understand that the rules for interviewing have changed. Companies were spoiled during the market downturn. With many more candidates than open positions, the process looked more like a beauty pageant -- minus the swimsuit competition. The bar was set pretty high for candidates to be thoroughly prepared and for flawless delivery. It also took many more interviews to cross the finish line. Rejection was the norm.

Although there is room now for an occasional faux pas, some interview mistakes are irreversible. They may not eliminate you immediately from consideration but when comparing you to another candidate at the point of an offer, you are likely to lose out if you make one of these mistakes. Here are 10 rules that you should never break in an interview. If you can avoid some of these land mines, you have a better shot at acing the interview, beating out the competition, and getting the job you want.

So, here they are, in order from least bad to worst, the ten best ways to blow a job interview.

10. Oversharing personal life details

One of my clients happens to be menopausal. She has occasional hot flashes and can move in a heartbeat from feeling chilled to being overheated. She carries a fan with her wherever she goes and dresses in layers that can be easily removed. That's all fine and practical -- except in an interview.

She scheduled an appointment with me two weeks after a second-round meeting with a company where she really wanted to work. She followed up immediately but had not yet heard back and was now concerned that the process had broken down. I asked her to describe her conversation with the hiring manager. It seemed to go well until she felt a flash coming on. She explained to the fellow that she was in menopause and then proceeded to remove her sweater revealing a rather skimpy camisole. She also began to fan herself. Uncomfortable for her? Yes! But even more awkward for her interviewer.

My client felt that she had already impressed the company in her first round of meetings. That was why, she presumed, they invited her back. Now was her opportunity for her and her future colleagues to become better acquainted. In this particular situation, she shared far too much information far too soon. A classic example of too much information. In fact, this level of intimacy should never have been reached at any point in the interview process.

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