American Express Software Engineer II interview questions

I was contacted by a recruiter for an interview. The first technical interview went well; the interviewer was kind and professional. The second was a behavioral interview with the hiring manager, who joined 5 minutes late, which was fine, but he seemed distracted, often typing or reading during our discussion. He asked unusually detailed questions, even about my university days, which felt like he doubted the authenticity of my profile. Because of this experience, I’ve since added written references to my CV. Afterward, I waited 10 days for a rejection without any feedback despite my request. Overall, the process felt neutral, but lacked transparency.