Polyglot
A developer with real authorship in several programming languages, measured from how much code they wrote in each.
What it tells you about a developer
Polyglots adapt fast and work across a system's layers without waiting on a specialist. Strong fit for early-stage teams, platform roles, and codebases moving between stacks.
A polyglot has written a meaningful volume of code in more than one programming language, going beyond a language mentioned once on a resume. Genuine polyglots have learned how to learn, and each new language got easier than the last.