Because this comes from the SO survey, and 99% of SO users (made up number) are IT type web devs. Same boat for me in systems and imaging applications. Any issue I hit would never get a response on SO, so I tend not to answer the survey requests.
Yeah, i was confused too. Most engineers are actually backend: building APIs, distributed systems, large data compute... i would think these are the things people are doing when using 'high-demand technologies' such as AWS.
I'm assuming the parent isn't writing yet-another-REST-API-data-layer in his/her day-to-day. Sounds to me like they work services the services those back end devs use to make their services go.
There are a lot of folks similar doing that at amazom, google, etc.
Does this seem like a huge oversight to anyone else?