Interview Playbook
Principal+ AI Architect study notebook — system design, coding, interview craft, and behavioral rubrics at Principal altitude. Read the question, answer yourself, then compare.
| Category | Focus | Count | |
|---|---|---|---|
| AI system design | Principal AI/ML platform design — hellointerview depth | 35 | Open → |
| MLOps / LLMOps | Registry, skew, drift, batch/online — Principal platform ops | 5 | Open → |
| Model Plane | Buy vs RAG vs PEFT vs self-host — ModelForge receipts and CAIO rebuttal | 5 | Open → |
| Principal applied embed | Discovery → wedge → HITL — a method, not a second career brand | 8 | Open → |
| General system design | Classic distributed systems — still in Principal loops | 18 | Open → |
| Cloud architecture | AI infra cloud, network, security, FinOps | 11 | Open → |
| Behavioral (STAR) | Principal stories: decision, conflict, mechanism others reused | 9 | Open → |
| Trade-off frameworks | Cost, build/buy, governance, model strategy | 4 | Open → |
| Principal coding bar | High-signal coding with Principal stop-line extensions | 20 | Open → |
| Principal interview craft | What to say, how long, what to skip, 90-day charter | 13 | Open → |