She's young enough to look at the Working Holiday Scheme. Under that she could come here for 12 months, work for 3 months at one employer (she has to rotate, no single employer for more than 3 months), and look for something more permanent while she is here. She will be regarded as "on holiday" so must have a return ticket, sufficient medical insurance and sufficient funds (min of $20,000, you can support her for the rest if necessary).