First round was a telephone interview, which was a little difficult to prepare for given the job spec was so vague. The interviewer asked me about my experience and gave me some intro, then asked me some high-level questions around:
-Basic linux commands (tail, netstat etc)
-CI/CD (what it is, what's it's used for, how multiple jenkins projects might be managed)
-Public cloud
-Experience with Python
-Source control, why it's used etc
-General devops philosophy
-PKI
The interviewer was quite friendly but wasn't the chattiest person; ultimately I didn't receive an offer despite answering all the questions. Despite the interviewer seeming happy with the answers I'd given I apparently didn't to not going into enough depth.