Red Hat Software Engineer interview questions

I found the job description on local java meetup group. A recruiter post it. Then I got connected with her. She introduced me to the position. Then I had a screen technical interview with her. After a day, she told me I passed it. After that, she told me that she would talk with a software manager and schedule a phone interview. I waited for about 10 days before they gave me the call. The interview was very technical. Then the recruiter called me after 3 hrs to tell me I was denied.