If you are a degree-seeking student at CUHK, you are eligible for this Programme. To take up a study / curriculum-related placement, you should have a No Objection Letter (NOL) issued by the Hong Kong Immigration Department. If not, you will have to apply for one before the contract-signing stage.
As job requirements vary across different job postings, you will have to check whether the hiring company has any particular specifications in the job advertisement.