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These paths move from first principles to the architecture, governance, risk, economics, and cross-team decisions expected at staff and principal scope. Pick a discipline below, or use the build and operate a service lab as the system you review from each perspective.
Choose a path
- SRE: Define reliability with SLOs, engineer failure containment, and govern operational risk.
- Infrastructure: Design cloud foundations, control planes, IaC, recovery, security, and cost boundaries.
- DevOps: Improve end-to-end delivery flow, supply-chain trust, progressive release, and recovery.
- Platform Engineering: Build internal products with stable contracts, paved roads, SLOs, and measurable outcomes.
AI has its own AI for Engineering section, with a guided path and practical verification workflow.
How to use the site
The Labs section gives you something to run. Field Notes explain the decisions and tradeoffs behind the work. Browse the Engineering Practice group for delivery, tools, security, and system design; use Foundations for networking, databases, programming, algorithms, and hardware. Graduate and career notes live under More from the Archive. Existing technical notes stay at their original URLs so bookmarks and links continue to work.