Makonis Software Solutions Senior Software Engineer interview questions

1st step or round need to create an application with front and back and upload it to GitHub. 1st round they conducted a video call. There were two guys one is a Chinese guy and one a south Indian guy. They delayed the interview as an Indian guy got some calls. Then they started asking questions and behaved in a non-professional manner. Those guys used to laugh at my answers as they are very genius. Overall the interview process was like showing how great they are and I don't know anything. Very bad experience.