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Design an AI Gateway

Last updated: May 20, 2026

Quick Overview

This question evaluates system design competencies for a multi-tenant AI gateway, including architectural design, unified API and authentication patterns, routing and retries, rate limiting and quotas, observability, failure handling, model selection, and cost-control mechanisms.

  • medium
  • Decagon
  • System Design
  • Software Engineer

Design an AI Gateway

Company: Decagon

Role: Software Engineer

Category: System Design

Difficulty: medium

Interview Round: Technical Screen

Quick Answer: This question evaluates system design competencies for a multi-tenant AI gateway, including architectural design, unified API and authentication patterns, routing and retries, rate limiting and quotas, observability, failure handling, model selection, and cost-control mechanisms.

Related Interview Questions

  • Design an AI gateway - Decagon (medium)
|Home/System Design/Decagon

Design an AI Gateway

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Decagon
Feb 17, 2026, 12:00 AM
mediumSoftware EngineerTechnical ScreenSystem Design
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