Some are happy to put your CV on file, others a bit more reluctant. If you are registered, you will find you tend to be put forward for last minute vacancies needing a quick solution, although in the interests of broadening your job search it is well worth considering. Once your name is known to one headhunter, it acts as an entry ticket into an exclusive club and you will find yourself approached with increasing frequency. For some particularly talented people, the headhunter can become a nuisance as much as a matter of excitement. Still, if that person casually mentions to their boss the number of headhunt calls they are receiving, their standing in their present job is inevitably increased.
Headhunters typically hunt for people at the higher salary ranges.
Headhunting tends to increase in the last six months of the year. Recruitment budgets are spent in the last quarter as the new business plan is prepared for. The chances of being headhunted from abroad are remote. Unless you are an exceptionally talented person, you will be even harder to track down and no company is likely to authorise the expense needed to recruit you into their country. However, many recruitment companies recruit within other countries.