Hong Kong administration does not specify the length of professional experience that candidates should demonstrate. While the department has a preference for people with longer experience, even professionals with a few years of experience are still eligible.
It is the role of the employer to demonstrate that the employee under consideration is exceptional and can deliver better results than the local staff. For example, a company dealing with latest computing technologies might source for top talents even direct from universities abroad because they have the needed skills. If the employee under consideration does not have a degree, it is advisable to consider the technical experience of more than five years in a similar position.