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Design a Stock Exchange

Design a Stock Exchange — A Staff playbook focused on matching engine architecture, FIFO ordering guarantees, low-latency financial system tradeoffs, and trade reconciliation at scale — not just order book data structures.

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. Fault Lines (Continued)
  • •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: Order Matching Decision Tree
  • •Appendix B: Exchange System Component Reference
  • •Appendix C: Order Book Data Structures
  • •Appendix D: Market Data Distribution
  • •Appendix E: Exchange Architecture Patterns
  • •Appendix F: Risk and Circuit Breaker Integration
Practice & Reference
  • •How to Use This Playbook
  • •Executive Summary
  • •System Architecture Overview
  • •Interview Walkthrough: How to Present This in 45 Minutes