Auckland businesses are in Perth this weekend seeking to lure workers back to New Zealand.

The Chamber of Commerce says skilled employees are needed to fill thousands of roles available in Auckland associated with infrastructure, transport and building.

CEO Michael Barnett says Auckland has a wall of work arriving with 30,000 jobs over next few years in the construction and infrastructure sector alone.

Close to 40 percent of businesses say they're having difficulty getting the right people with the right skills.