Go (Golang) Interview: 200 Questions and Answers

The book "Go (Golang) Interview: 200 Questions and Answers" is a practical guide for those preparing for a technical interview for a Go (Golang) developer position. The book collects the most common and complex questions asked in interviews at Russian and international IT companies — from startups to large corporations.

The material is structured by thematic sections, each covering key aspects of the Go language and ecosystem:

• Syntax Basics and Data Types: structs, interfaces, slices, maps, pointers — with an analysis of pitfalls.
• Goroutines and Channels: concurrency, synchronization, patterns (fan-in, fan-out, worker pool), deadlock and race conditions.
• Memory Management: stack and heap, GC, escape analysis, memory leaks.
• Testing and Debugging: unit tests, benchmarks, mocks, profiling (pprof, trace).
• Architecture and Best Practices: SOLID in Go, error handling, packages, modules, code review.
• Databases and Networking: working with SQL, HTTP servers, middleware, gRPC.
• Tools and Infrastructure: go mod, linters, CI/CD, Docker, Kubernetes.

Each question is accompanied not only by the correct answer but also by explanations, code examples, and links to official documentation. This allows you not just to memorize answers but to deeply understand the topic.

Who is this book for?

• Junior Go developers preparing for their first technical interview.
• Middle developers looking to systematize their knowledge and fill gaps.
• Team leads and mentors who want to understand what questions to ask candidates.
• Developers from other languages (Python, Java, C++) transitioning to Go.

What will you learn?

• How to confidently answer questions about goroutines, channels, and concurrency.
• What is the difference between interfaces and structs, and when to use each.
• How to avoid common mistakes when working with slices and maps.
• How to write tests and benchmarks to make code reliable and fast.
• Which design patterns are truly needed in Go.
• How to prepare for live coding and system design interviews.

The book is written in a lively style, with an emphasis on practice. All examples are tested on current versions of Go (1.21+). After reading, you will feel confident at any stage of the interview — from screening to the final round with an architect.

Format: e-book (PDF, EPUB, MOBI), 350 pages, 200 questions with detailed answers and code examples.