Spoke with the manager first, and then a senior technical staff member.

This was then followed by another session with three technical staff over two hours of a video/audio call.

Best advice I can give is to be honest. If you don't know something, say so. Red Hat folk are very smart and will catch you out if you try to spin them a yarn.

After this, an offer was made by HR, which I accepted.

Mainly discussing what I was doing in my then current, now former company and role. Each time I spoke about a topic, they would start to take the topic deeper to see what my understanding was.

It was a friendly atmosphere, and no role-playing or tests were proposed.