OTOH, when I'm doing more "building infrastructure" type work - implementing a data store, writing a compiler or interpreter, stuff like that - I start getting more interested in rigidity and formality. Static languages treat me well in these situations. The more rigid, the better - I'll prefer Scala to Java, for example, specifically because it gives me more tools in the type safety department.
I recently rolled my own (verg tiny and specific) build/deployment system for a project. Initial prototyping was a breeze, but once I had things more or less nailed down, I started adding types and, for example, was able to leverage the type system to make sure it can only be deployed listening on IP addresses in the private range. The next step is to rig up some sort of Zerotier integration to ensure I only make it available on my private networks.