← Back to Stripe
5
Design a Fraud Detection System
System DesignhardCommon
fraud-detectionmachine-learningreal-timepayments
Reported
7 times
Last seen
2026-03-15
First seen
2025-08-12
Active in
2025, 2026
Description
Design a real-time fraud detection system for payment transactions. Consider ML model serving, rule engines, and manual review workflows.
Approach Tips
Design a multi-layer approach: fast rules engine for obvious fraud, ML model for nuanced signals, and a manual review queue. Discuss latency budgets.
Sources
Blind·SDE-3·2026-03-15
Glassdoor·Staff·2025-11-01
ST
Stripe
Fintech
Typically appears in: Onsite - System Design
60 min — Design a payment-related distributed system. Emphasis on reliability, consistency, and fault tolerance.