As someone who has to build things solo most of the time, AWS does not need a specialist.
Oh yes, to squeeze the most out of it, I am sure it does.
But you can get along with EC2, Route 53 etc. pretty fine.
Personally found the multiple terms, docs (outdated) and other stories of people being billed lots pretty intimidating but when it came down to it, it wasn't as scary as I made it out to be and I've set things up at about half the cost of Digital Ocean and others.