The Regional Sponsored Migration Scheme (RSMS) subclass 187 allows employers in Tasmania to employ skilled migrants if a position cannot be filled by an Australia citizen or permanent resident.
If you cannot wait until the babies have fledged you may contact a licensed wildlife cooperator to help you find a solution. Chimney swifts are protected by the Migratory Bird Treaty Act and a federal permit is needed to remove birds and their nests during the nesting season.
All wild birds in the UK are protected under the Wildlife and Countryside Act 1981 (as amended). Even common species like pigeons or blackbirds are protected.