[gumby]

> There’s the internal chargeback costs that AWS charges Amazon for services that would be subject to

Do they do this? I have asked some friends who are developers at AWS and both told me that they don't worry or even know what their usage costs. But that's just anecdote; perhaps their boss knows.

[donavanm]

I cant comment on individual teams or the business and accounting practices of Amazon.

I would ABSOLUTELY say that, at a minimum, every director or principal engineer needs to be familiar with costs and _should_ understand their P&L. Senior engineers and line managers probably/should have a passing familiarity or consideration. Individual random SDEs may not as its not their primary business function or deliverable and someone else is ultimately responsible.

Disclosure: Principal at AWS, opinions are my own.