I've been developing application backends with Node.js for over two years. I've had pet projects with most of the other common languages found today on the market. I've also spent a good amount of time in DevOps working mainly with AWS and it's line of products.
Data. Neo4j and it's directed property graph model feel very intuitive when it comes to developing data models. Throw Graphql as the access layer on top of it, and you've got a stack that works for both the UI and Backend teams.