Barclays Software Engineer interview questions

Was done online, There was two stages with the first being a online programming test. The second being a online interview. The programming test the timer glitched out a little with me and ended early but they still allowed me through. The second interview was with 2 separate people back to back. The first interviewer was great but the second just did not seem to have any interest or enthusiasm to be there.

It was a pretty good and smooth interview, I medium difficulty had reviewing part of the Java or Kotlin (Spring Boot) code and finding a bug, then optimise it (loading a lot more entities from the DB than needed)