I'm assuming you are the Singapore citizen and your relative is a foreigner with no particular status in Singapore. I'm also assuming your relative is not eligible for an LTVP (i.e. not an immediate relative).
1. If your relative wants to come to Singapore to look for a job -- a job with a random employer (not you) -- your relative could come to Singapore either with a visa waiver (if your relative's citizenship allows that option) or with a regular short-term visa. In the latter case, you and your relative can submit a visa application online using ICA's
SAVE Web site as long as you have a SingPass. After your relative's entry into Singapore it may be possible to
extend your relative's stay if necessary. Visa approval, entry, and stay extension are not guaranteed.
2. If you have a genuine, registered business in Singapore then your business may be able to hire your relative as an employee. Review the conditions associated with the following pass types at
MOM's Web site: Employment Pass, S Pass, and Work Permit (for foreign worker).