Distributed Systems Design (Staff-Level)

Who this course is for

If you're already comfortable with system design at a senior engineer level and want to reach the depth expected of a staff or principal engineer — precise reasoning about consistency tradeoffs, not just familiarity with buzzwords — this course is built for that jump. It builds on the System Design roadmap, so a solid senior-level foundation is assumed going in.

What you'll actually build

The course works through five staff-level problems, in order: reasoning precisely about consistency models and the CAP/PACELC tradeoffs rather than reciting them, designing consensus-based systems using Raft or Paxos from first principles, designing systems that degrade gracefully under partial failure instead of failing completely, studying real outage case studies and post-mortems to see how theory breaks down in practice, and practicing staff-level system design interviews and discussions. Every module pairs a concepts lesson with a hands-on exercise reasoning through a realistic distributed-systems scenario.

The capstone

You finish by producing a formal design document for a distributed system — the kind of document a staff engineer is actually expected to write and defend, not a whiteboard sketch. This is meant to be a real work sample you could bring into a staff-level interview loop.

Why this matters right now

This is the deep systems knowledge staff and principal engineers are expected to have, and it's specifically the gap between "can design a system that works" and "can design a system that survives real partial failure and defend every tradeoff in the design." The real outage post-mortem module exists because staff-level thinking is proven by how you reason about what actually broke, not just what should theoretically work.