Citi Sr Software Engineer interview questions

Phone screen with a recruiter, then an hour long meeting with the hiring manager and another hour technical interview with a team member. People seemed fairly ok. They came back to me after 6 months of having the technical interview, no apologies, no explanation, saying that the senior position I was interviewing for has been closed, but since I got positive feedback (first time I learned about it) from both interviews, they would like me to interview for the same position but one level below. I decided not to "continue" ;)

It was a relatively difficult interview, but not bad. It was a great experience overall. The interview was a bit weird, where I was supposed to ask questions too, and hence I was not prepared that well. I answered all the questions correctly, but fumbled when the interviewer asked me to ask him some questions.