If you're thinking of a change of employment, there are very sound reasons for utilizing a recruiting agency that specializes in the sector of business in which you operate, and where you're qualified, such as web developer jobs, etc. To know more about recruitment agency in Vietnam you can search the browser.
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Merely to start with, those large agencies are staffed by people who have no actual interest in your wellbeing but are only concerned with meeting their aims set upon them from the head office in precisely the same way that the director of the neighborhood company is. Their job is to secure you a position. If you enjoy it very much, then that's almost a bonus, but it isn't the purpose of their presence.
By comparison, an agency that specializes in a small area or sector will have a much greater in-depth understanding of the workings of the industry and should also know about the businesses that operate inside.
A great recruiter should have your interests in mind and should have as a primary aim putting you in a posture in which you're happy.
That accomplishes two things: you may stay with the company for years, which keeps the company happy also, and the employer is going to use that agency when another vacancy arises, so the agency benefits in this way too.