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by netgineer 5068 days ago
I'd choose Ruby in a service oriented architecture. Use HTTP/JSON for internal APIs between distinct systems. If performance becomes a business-limiting factor, you can investigate replacing a single part of the system with a lower-level language (Java, Haskell, Go, Erlang, etc).

Rails (and in particular the RailsApi gem) makes prototyping and putting together a SOA like this easy and fast. Except for the API client, which I don't yet have a good solution (ie, what ActiveResource was supposed to solve).