Advanced|16 hours|31 lessons

The Staff Engineer's Judgment

Plenty of senior engineers are better at Kubernetes than the staff engineer beside them. What differs is how much depends on the decision, over what horizon, how many other people it constrains, and how expensive it is to reverse. This course teaches that judgment through real infrastructure decisions: every lesson gives the competent senior answer, then the staff answer, then what the second one saw that the first did not.

Text-based, no videos
7 modules, 31 lessons
Lifetime access

What you'll learn

Score any decision on the four multipliers: blast radius, time horizon, teams constrained, and reversibility
Turn an unspecified problem into a decidable one, which is most of what staff scope actually is
Cost a buy, build, or adopt decision over the life of the system rather than to delivery
Choose service, cluster, and team boundaries deliberately, and tell which one the pain is really about
Judge a migration on whether your organisation can finish it, not on how good the destination is
Spend deliberation where reversal is expensive, and stop spending it where reversal is cheap
Run a design review that changes the decision that matters instead of the lines that do not
Write the two paragraphs that let a director approve infrastructure work
Recognise the architect astronaut, the bottleneck, the firefighter, and the invisible engineer in yourself
Audit your own decisions and locate where your scope actually sits

Curriculum

7 modules · 31 lessons
01

What Actually Changes

Scope of consequence rather than depth of skill. The four multipliers, what the ladder actually means, and the decisions nobody is making.

4 lessons
02

Deciding Under Ambiguity

Problems without a spec, choosing what not to build, reversibility, deciding on a deadline, and the right answer nobody will accept.

5 lessons
03

Technical Judgment at Staff Scope

Buy or build, boundaries, migrations, designing for the org, cost as a constraint, and betting on young technology.

6 lessons
04

Multiplying Other Engineers

Design review, writing that moves decisions, the platform as a human interface, mentoring that scales, and being wrong in public.

5 lessons
05

Operating Across the Org

Making the case for infrastructure work, working with product and finance, incident leadership, and saying no.

4 lessons
06

The Staff Traps

Four failure modes described honestly enough to be recognisable in yourself.

4 lessons
07

Capstones

Three full walkthroughs, ending with an audit of the reader's own scope.

3 lessons

About the Author

Sharon Sahadevan

Sharon Sahadevan

AI Infrastructure Engineer

Building production GPU clusters on Kubernetes. H100s, large-scale model serving, and end-to-end ML infrastructure across Azure and AWS.

10+ years designing cloud-native platforms with deep expertise in Kubernetes orchestration, GitOps (Argo CD), Terraform, and MLOps pipelines for LLM deployment.

Author of KubeNatives, a weekly newsletter read by 3,000+ DevOps and ML engineers for production insights on K8s internals, GPU scheduling, and model-serving patterns.

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