backend-development
About
This skill helps developers build production-ready backend systems using modern technologies like Node.js, Python, and Go. It provides expertise for designing APIs, implementing authentication, optimizing databases, and setting up DevOps pipelines. Use it when working on security, scalability, microservices, or any robust backend development task.
Documentation
Backend Development Skill
Production-ready backend development with modern technologies, best practices, and proven patterns.
When to Use
- Designing RESTful, GraphQL, or gRPC APIs
- Building authentication/authorization systems
- Optimizing database queries and schemas
- Implementing caching and performance optimization
- OWASP Top 10 security mitigation
- Designing scalable microservices
- Testing strategies (unit, integration, E2E)
- CI/CD pipelines and deployment
- Monitoring and debugging production systems
Technology Selection Guide
Languages: Node.js/TypeScript (full-stack), Python (data/ML), Go (concurrency), Rust (performance) Frameworks: NestJS, FastAPI, Django, Express, Gin Databases: PostgreSQL (ACID), MongoDB (flexible schema), Redis (caching) APIs: REST (simple), GraphQL (flexible), gRPC (performance)
See: references/backend-technologies.md for detailed comparisons
Reference Navigation
Core Technologies:
backend-technologies.md- Languages, frameworks, databases, message queues, ORMsbackend-api-design.md- REST, GraphQL, gRPC patterns and best practices
Security & Authentication:
backend-security.md- OWASP Top 10 2025, security best practices, input validationbackend-authentication.md- OAuth 2.1, JWT, RBAC, MFA, session management
Performance & Architecture:
backend-performance.md- Caching, query optimization, load balancing, scalingbackend-architecture.md- Microservices, event-driven, CQRS, saga patterns
Quality & Operations:
backend-testing.md- Testing strategies, frameworks, tools, CI/CD testingbackend-code-quality.md- SOLID principles, design patterns, clean codebackend-devops.md- Docker, Kubernetes, deployment strategies, monitoringbackend-debugging.md- Debugging strategies, profiling, logging, production debuggingbackend-mindset.md- Problem-solving, architectural thinking, collaboration
Key Best Practices (2025)
Security: Argon2id passwords, parameterized queries (98% SQL injection reduction), OAuth 2.1 + PKCE, rate limiting, security headers
Performance: Redis caching (90% DB load reduction), database indexing (30% I/O reduction), CDN (50%+ latency cut), connection pooling
Testing: 70-20-10 pyramid (unit-integration-E2E), Vitest 50% faster than Jest, contract testing for microservices, 83% migrations fail without tests
DevOps: Blue-green/canary deployments, feature flags (90% fewer failures), Kubernetes 84% adoption, Prometheus/Grafana monitoring, OpenTelemetry tracing
Quick Decision Matrix
| Need | Choose |
|---|---|
| Fast development | Node.js + NestJS |
| Data/ML integration | Python + FastAPI |
| High concurrency | Go + Gin |
| Max performance | Rust + Axum |
| ACID transactions | PostgreSQL |
| Flexible schema | MongoDB |
| Caching | Redis |
| Internal services | gRPC |
| Public APIs | GraphQL/REST |
| Real-time events | Kafka |
Implementation Checklist
API: Choose style → Design schema → Validate input → Add auth → Rate limiting → Documentation → Error handling
Database: Choose DB → Design schema → Create indexes → Connection pooling → Migration strategy → Backup/restore → Test performance
Security: OWASP Top 10 → Parameterized queries → OAuth 2.1 + JWT → Security headers → Rate limiting → Input validation → Argon2id passwords
Testing: Unit 70% → Integration 20% → E2E 10% → Load tests → Migration tests → Contract tests (microservices)
Deployment: Docker → CI/CD → Blue-green/canary → Feature flags → Monitoring → Logging → Health checks
Resources
- OWASP Top 10: https://owasp.org/www-project-top-ten/
- OAuth 2.1: https://oauth.net/2.1/
- OpenTelemetry: https://opentelemetry.io/
Quick Install
/plugin add https://github.com/mrgoonie/claudekit-skills/tree/main/backend-developmentCopy and paste this command in Claude Code to install this skill
GitHub 仓库
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