The hiring manager clearly needs to be trained to be a better listener and respect the interviewees. He started by asking random questions that are not associated with the job including where my parents lived and where am I here. In addition, he repeated his questions many times about what kind of data programming skills can I bring to his company. Well, of course, I told him about my background, skills, passion in data programming repeatedly every time he asked..If you are a hiring manager, you should acknowledge the candidate of what they said even though you feel the candidate is not someone you are looking for. Instead, his behavior is showing as if he was not listening and acknowledging what I told him. Overall, I did not feel respected and valued by the hiring manager. I understand how achieved is your company, but you should not devalue every candidate that is not aligned with what you are looking for. This is also reflecting the company's culture. I hope the company can train the hiring manager's communication skills.