You will have mix of behavioral and technical interview for your first interview. Then, they will give you technical assessment. If you pass the technical assessment, there will be final technical interview with the development team before an offer.

I applied online, then they called me after a couple of days for an interview at Moodle HQ in West Perth. In the interview were the CEO, the HR Coordinator, and the Development Manager. They asked me about my background as a software developer and my current visa status in Australia. After the chat about my history, the interview shifted into the technical part. They asked me some technical questions about PHP development and web app security. They also had me review several code snippets and determine what's wrong with them. They also asked me if I can show some examples of my previous software development work. As all of my previous works from my former employer were closed source and subject to NDA, I couldn't show them anything. Good thing I was working on a personal iOS app project at the time, so I was able to show them a demo of it. After the interview, the HR Coordinator called me to congratulate me that I passed the initial interview and got in for the second part of the hiring process. This time, they sent me a ticket about one of the issues in Moodle from their issue tracker website. The objective is to provide a patch for the said issue and I had two days to work on it. I submitted two solutions to the issue and explained my preferred solution. After that, they offered me the role, called my referees, and the rest is history. I guess what I liked about the interview process is that they actually asked me and tested what I can do to determine whether I am actually suitable for the role. Other companies I interviewed in before Moodle didn't do this and were simply asking the usual generic interview questions like "How do you see yourself in 5 years?", "What are your weaknesses?", etc., which I personally think are not very helpful at all, especially for someone like me whose English is not the first language and not very eloquent in expressing one's self.