Go

Go was created in 2007 by Google engineers Robert Griesemer, Rob Pike, and Ken Thompson. It was developed to address issues of complexity and inefficiency in existing languages used at Google. The language aimed to improve productivity in coding, offering a statically typed, compiled language with the ease of dynamic languages like Python.

Strengths of Go include its simplicity, strong concurrency support, fast compilation, and efficient performance. Weaknesses include limited generics support and a smaller ecosystem compared to more established languages. Competitors of Go are Python, Java, Rust, and Node.js.

A Go expert must have strong proficiency in Go syntax and idioms, experience with goroutines and channels for concurrency, knowledge of Go's standard library, expertise in writing and optimizing Go code for performance, familiarity with dependency management using tools like `go mod`, and experience with testing frameworks such as `testing` package.