I used to make online games and our gameservers at launch were in the order of 100,000 physical CPU cores and about 640TiB of RAM spread across the world.
But we did this: On windows, with a homegrown stack, before kubernetes was a thing (or when it was becoming a thing).
With the advent of cloud we wrote a predictive autoscaler too. That was fun.
I don't work there anymore, and they moved to Linux, but they're hiring: https://www.massive.se/
I used to make online games and our gameservers at launch were in the order of 100,000 physical CPU cores and about 640TiB of RAM spread across the world.
But we did this: On windows, with a homegrown stack, before kubernetes was a thing (or when it was becoming a thing).
With the advent of cloud we wrote a predictive autoscaler too. That was fun.
I don't work there anymore, and they moved to Linux, but they're hiring: https://www.massive.se/
You can learn a lot from a technical interview ;)