Quantlab Quantitative Developer interview questions

I found this position on indeed.com and I applied it on their website. After several days, I got an email from their recruiter and we talked over the phone for about 45 minutes the next day. She just asked some of my basic information and some behavioral questions. Then she said another developer will contact and interview me. About two weeks later, this guys call me and we talked on the phone for about 30 minutes. He just asked me to explain the project I am working on and some details of my thesis and so on. I am very surprised that he didn't ask me any technical questions. I'm also surprised it's so short. But anyway, I got a rejection letter the very next day. I feel very surprised because they have not ask a single technical question yet. But anyway, that's end of the story.