Target audience: anyone looking to build hands-on cloud skills. Most who complete the challenge have between 1-3 years of IT experience of some kind, although there have been quite a few who've tackled the challenge as their very first exposure to tech.

Software engineers without cloud experience are a big part of the audience for the challenge, and seem to be able to complete it in just a few hours in many cases.

For salary comparisons, I would look at SRE roles - these are often a good match for "cloud" engineering titles in terms of scope and salary