Here are some typical questions we ask Golang developers:

What is the name of the language? Tell us about your project with the highest traffic. How did you manage it? What was the most technically challenging project you worked on? What did you learn from it? How did you ensure your project ran smoothly in production? Can you explain the difference between a mock and a fake? What other types of test doubles do you know? What are the pros and cons of modeling a set in Go using map[T]bool versus map[T]struct{}? How would you handle log management? What do you find most challenging about working with Go (syntax, lack of inheritance, error handling, concurrency, etc.)? What are some important or useful packages in the standard library?

One tip for you Go is a simple language with straightforward tooling that doesn't require much troubleshooting experience. While we can teach the basics of Go to newcomers in a few weeks, being a good software engineer involves much more than just writing code.

Protip for Golang interview: Focus on mastering the basics like Goroutines, Channels, and error handling (defer, panic, recover). Be comfortable explaining how concurrency works in Go and when to use tools like sync.WaitGroup or sync.Mutex. Practice coding challenges specific to Go, such as building REST APIs or solving problems that require concurrency.

Make sure you understand Go's tooling. For example, know how to use go mod for dependency management, go test for writing test cases, and pprof for performance profiling. Study Go’s standard library, especially fmt, os, io, and net/http, as they often come up in questions.

Prepare for design problems too. Be ready to explain how you would structure scalable systems like a load balancer or chat server. Practice debugging skills since interviewers might ask you to analyze and improve existing Go code.

Don’t forget to ask questions during the interview. Show interest in how the team uses Go and the challenges they solve with it. Lastly, stay calm and focused. You’ve got this!