Coinbase Backend Technical + Behavior Interview Guide (2025 Edition)

If you are currently preparing for Coinbase Backend interview, use this document and leetcode questions under Coinbase tag, you will get everything covered and pass that interview!!!

🧠 Struggling to prepare for Coinbase interviews?
This guide walks you through everything you need: coinbase questions collected from leetcode discussion and discord, top-tier solutions, and interviewer-style follow-ups — all based on actual interviews and LeetCode variants.

🔍 What’s inside?

✅ 10 Real Coding Patterns, including:

• Interleave Iterator System
• Stock Gain/Loss Matching (FIFO + Max Gain)
• Traits Generator with Constraints
• In-Memory File System (LC 588 Variant)
• Order Matching System with Heap
• Currency Exchange Graph Traversal
• Calculator (with Division by Zero)
• Book Marketplace Order Matching

✅ Behavioral Interview Deep Dive:

• STAR method answers to real Coinbase questions
• Career story, project reflection, scaling questions
• How to ask high-signal questions at the end

✅ Every problem includes:

• Real interview-style prompts
• Complete Python solutions
• Inline comments to explain logic
• Time & space complexity
• Follow-up questions from interviewers
• Strategy notes on what the interviewer is really testing

🧪 Perfect for:

• SDE/Backend/Infra candidates (New Grad or Experienced)