Staff+ Engineering Cheat Sheet

Quick reference for Senior engineers targeting Staff and Principal roles. Six modules. One template. No fluff.

Module	Topics
Architecture & Design	SOLID, DDD, patterns, clean architecture
Distributed Systems	CAP, consistency, consensus, resilience
Scalability & Reliability	Caching, DB, SLOs, observability, incidents
Security	Auth, OAuth, JWT, OWASP, zero trust
Cloud & Infrastructure	K8s, serverless, IaC, deployments
Staff+ Engineering	STAR, RFC/ADR, tech debt, metrics, leadership