Every time I've talked to AWS Recruiters they've belittled by past experience and just generally made me feel bad about my career. I will never ever work there, no matter how cool their tech stack must be.
Of course the databases I worked with were smaller, they deal with some of the largest in the world.
That said, I've done just fine without that benefit since moving on.
A lot of the internal tooling is due to legacy and inertia. There's 20+ years of history, and so much has been built and continues to be built that it's enormous investment to steer a different direction. Incremental improvements have higher reward ratio. But people do want better a better development experience, especially w.r.t. idiomatic language tooling.
That being said, initiatives are brewing for that "enormous investment".