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  SYSTEMS NORMAL | 30 YRS ON THE FLOOR | VENDOR-NEUTRAL | REV 2026.06

ROUTE B — UPGRADE · HUB

Technician →
principal engineer

The gap between a technician and a principal engineer isn't years served — it's systems depth, incident judgement, and whether people trust you when the room goes loud. All three can be built deliberately. That's what this route is for.

The ladder, honestly

WHAT ACTUALLY MOVES YOU UP

Know the systems cold

Power from grid to rack, cooling from plant to chip, controls, fire, life safety. Not vendor-course knowledge — the "explain it on a whiteboard during an outage" kind.

Own incidents properly

Anyone can follow an EOP. Promotions go to the people who write better ones afterwards — clean root-cause analysis, honest post-incident reports, fixes that stick.

Make yourself legible

CVs that speak hiring-manager, interview answers structured around real scenarios, and a track record you can actually evidence. Quietly competent doesn't promote; documented competent does.

Field notes for this route

PUBLISHING WEEKLY

Coming up: N+1 vs 2N explained properly, How commissioning really works (and why ops should care), The incident report that gets you promoted, Hyperscale interview scenarios. The book covers the full curriculum — 33 chapters, first shift to principal.

About the book

FREE — SCENARIO DRILLS

Hyperscale interview scenarios, with model answers

Five real-style scenario questions ("How do you deliver five nines without 2N?") answered the way a principal engineer would. Free, by email.