backend-go

Generates Go backend interview questions covering goroutines, channels, GC, and pprof profiling.

23|1|Updated Aug 3, 2026
One-click install
npx skills add https://github.com/yuecao365/OfferCome --skill backend-go-yuecao365
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: backend-go
Source: https://github.com/yuecao365/OfferCome/tree/main/src/lib/mock-interviews/skills/backend-go
Command: npx skills add https://github.com/yuecao365/OfferCome --skill backend-go-yuecao365

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Interviewers and mock-interview systems need deep, scenario-based Go backend questions rather than trivia. This Skill provides a structured question bank and evaluation rubric for Go backend interviews, covering concurrency, runtime internals, and engineering practice. ## Core Features & Use Cases - Topic Ladders: Twelve topic areas (GMP scheduling, channels, sync package, context, GC, escape analysis, slice/map/interface internals, error handling, web frameworks and gRPC, pprof, graceful shutdown, testing) each with progressive difficulty from basics to production troubleshooting. - Good vs Bad Question Patterns: Contrasts shallow trivia questions with scenario-based questions that require candidates to write code, find bugs, or diagnose production incidents. - Resume Hooks: Maps resume keywords (high concurrency, gRPC, Kubernetes, performance optimization) to targeted follow-up questions. - Use Case: When a candidate's resume mentions Go microservices on Kubernetes, load this Skill to generate questions about goroutine leak diagnosis with pprof, gRPC load balancing with headless services, and graceful shutdown during rolling updates. ## Quick Start Load this skill when the job description or resume mentions Go backend, cloud-native, or Kubernetes development, then generate interview questions on goroutine scheduling and concurrency patterns.

Frequently Asked Questions about backend-go

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I prepare for a Go backend interview?▼

Focus on three areas: writing correct concurrent code with channels and context, diagnosing production issues with pprof profiles, and Go engineering conventions like error wrapping and graceful shutdown. Practice scenario questions such as finding goroutine leaks rather than memorizing definitions.

What Go concurrency questions are asked in interviews?▼

Common questions cover GMP scheduling, buffered versus unbuffered channels, sync.Mutex versus sync.Map selection, and detecting data races with the -race flag. Senior interviews ask you to write a worker pool or a fan-out request with cancellation and explain every goroutine's lifecycle.

How do I diagnose goroutine leaks in a Go service?▼

Use the pprof goroutine profile to aggregate goroutines by stack trace and find where they block. Compare goroutine counts over time, then fix the leak and add architectural guards like semaphores or worker pools to bound concurrency.

Does Go GC tuning matter for backend services?▼

Yes. GC frequency depends on allocation rate more than heap size, so a small heap can still cause high GC CPU usage. Tune GOGC and GOMEMLIMIT, reduce allocations with sync.Pool and preallocation, and verify improvements with pprof alloc profiles and benchmarks.

What is the difference between junior and senior Go interview questions?▼

Junior questions test language fundamentals like slice internals, defer ordering, and channel blocking semantics. Senior questions focus on production incidents: goroutine count explosions, GC optimization, gRPC connection management, and designing concurrency-limited downstream calls.