StaffSignal

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