Group Interview, Aptitude Testing (Verbal and Numerical), One on One Interview. Followed by a Second Interview.
I found the interview process to be quite thorough. Starting with a phone interview and then progressing to a half day interview process consisting on an individual interview, a group interview and a computer test.
Very straightforward and efficient process.
Online Application --> Phone Interview (via recruiter) --> Assessment Centre (Online Testing, Groupwork, 1 on 1 interview with manager from business unit)
The process was difficult, though most internships or graduate roles are. I feel that Mirvac treated us all well. I completed an online application with my CV and cover letter, a few weeks later I was called for a phone interview. Shortly afterwards I was invited to an assessment centre with three other candidates and the day afterwards I was awarded the role.