Design Google Maps
Design Google Maps — A Staff playbook focused on spatial index selection, proximity query tradeoffs, real-time location tracking at scale, and geofencing accuracy vs performance — not just QuadTree tutorials.
This playbook is part of the full calibration library.
Staff interviews are decided on nuance — tradeoff framing, ownership boundaries, and failure anticipation. This playbook covers the depth that separates Senior from Staff+.
What's inside this playbook
Core sections
- •1. The Staff Lens
- •2. Problem Framing & Intent
- •3. Fault Lines
- •4. Failure Modes & Degradation
- •5. Evaluation Rubric
- •6. Interview Flow & Pivots
- •7. Drills
- •8. Deep Dive Scenarios
- •9. Level Expectations Summary
- •10. Staff Insiders: Controversial Opinions
Appendices
- •Appendix A: Spatial Index Decision Tree
- •Appendix B: Distance Calculation Reference
- •Appendix C: Spatial Index Comparison
- •Appendix D: Location Update Pipeline
- •Appendix E: Proximity Search Algorithms
- •Appendix F: Geofencing at Scale
Practice & Reference
- •How to Use This Playbook
- •Executive Summary
- •System Architecture Overview
- •Interview Walkthrough