DynamoDB
AWS fully managed NoSQL database with single-digit millisecond performance. Advanced partition key design, GSIs, and on-demand scaling.
This technology guide is part of the full calibration library.
Staff interviews are decided on nuance — tradeoff framing, ownership boundaries, and failure anticipation. This technology guide covers the depth that separates Senior from Staff+.
What's inside this technology guide
Practice & Reference
- •Why This Matters
- •The 60-Second Pitch
- •Architecture & Internals
- •Data Modeling — Single-Table Design
- •GSI vs LSI — Secondary Access Patterns
- •Capacity Modes
- •DynamoDB Streams & Change Data Capture
- •Advanced Features
- •Failure Modes & Recovery
- •When to Use vs. Alternatives
- •Operational Concerns
- •Interview Application — Staff-Level Plays
- •In the Wild
- •Practice Drill
- •Quick Reference Card