Plaid Interview Questions and Guide
Financial-data APIs: integrations with many banks, reliability under flaky upstreams, and clean API design.
The Plaid interview loop
- Recruiter screen
- Technical phone screen (practical coding)
- Onsite: coding, system design, debugging, and behavioral
Plaid interview questions
- Design a Distributed Rate Limiter
- Design a Payment System
- Text Justification
- In-Memory Database (Multi-Part)
- Invalid Transactions
- Number of Orders in the Backlog
- Time-Based Key-Value Store
- Coin Change
- Coin Change II (Unbounded Knapsack)
- Find the Length of the Longest Common Prefix
- Modular Exponentiation
- Design a Stock Exchange Order Book
- Tell me about a time you took ownership beyond your role
- Tell me about a production incident you handled