Design a High-Throughput Payment Authorization and Settlement System

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Quick Overview

Design a payment system that handles about 10,000 transaction requests per second. Connect requirements and APIs to data modeling, consistency, scaling, failure recovery, observability, and the important design trade-offs.

Design a High-Throughput Payment Authorization and Settlement System

Company: OpenAI

Role: Software Engineer

Category: System Design

Difficulty: hard

Interview Round: Onsite

Overview: Design a payment system that handles about 10,000 transaction requests per second. Connect requirements and APIs to data modeling, consistency, scaling, failure recovery, observability, and the important design trade-offs.

Read the full OpenAI Software Engineer interview experience this question came from

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OpenAI
Aug 10, 2026
hardSoftware EngineerOnsiteSystem Design
38
0
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