Sorry, I don't think I have been explicit in my comment. The language of K8s, a system which is the so-called direct descendant of Borg, replaced C++ at that layer. Also, Go is strongly typed.
I'd argue that go is statically typed rather than strongly typed due to `interface{}`.
> There is no real agreement on what "strongly typed" means, although the most widely used definition in the professional literature is that in a "strongly typed" language, it is not possible for the programmer to work around the restrictions imposed by the type system. This term is almost always used to describe statically typed languages.
Actually Google knew at the time they "designed" k8s that Borg doesn't scale due to fundamental design flaws in it's basic architecture. Still they reused the exact same architecture for k8s.
Who wants to know the details of those scaling issues can google for the Omega paper.
The "proper"™ solution to those design flaws was implemented in Mesos (and to my knowledge nowhere else until now).