I don’t think you need to be looking into another career. You have said that you know the nuances of Go, and with that you probably have touched the outside wo

I don’t think you need to be looking into another career. You have said that you know the nuances of Go, and with that you probably have touched the outside world like databases, caching, HTTP, TLS. And I think this is much more worthy to grasp the overall concepts from end to end and knowing how to integrate your parts you have done in Go into the rest of the infrastructure. Of course it is always good to dabble around in other languages and reuse insights across different languages, but having a good understanding across the infrastructure stack is in my opinion more helpful.