BackendAround since 1995
Ruby
A dynamic, readability-focused programming language — best known today as the language Ruby on Rails is built on, though it predates and exists independently of that framework.
Think of it like
Like the language a restaurant's whole way of talking is built on — most people only ever encounter it through the restaurant (Rails), rarely on its own.
Junior or senior?
Junior sounds like
Has only written Ruby inside Rails's conventions.
Senior sounds like
Has written plain Ruby outside of it — a gem, a script, a standalone tool.
Ask them
“Have you written Ruby outside of Rails — a gem, a script, a standalone tool — or has it all been within a Rails app?”