A rash of large-scale transit infrastructure projects in Australia's major cities has intensified demand for engineers, pushing their salaries higher by as much as 30 per cent.

Fairfax reports that junior engineers currently on salaries of around $100,000 are receiving offers of as high as $130,000 from construction groups competing for personnel needed to complete multi-billion dollar transit projects. Major transportation projects currently in the works include the $15 billion WestConnex motorway project and $3 billion NorthConnex motorway in Sydney,…