Openai Software Engineer System Design Interview Questions
Master your tech interview with our curated database of real questions from top companies.
Design GPU credit allocator
System Design: GPU Credits Allocation and Fair Usage Context You are designing a multi-tenant platform that provides access to GPU compute across many...
Design in-memory database API
In-Memory Database: Insert, Query, and Indexing Context You are to design a minimal, single-process, in-memory database to be embedded in a service. T...
Design a URL shortening service
Design a scalable backend service for shortening URLs (similar to popular URL shortener products). Describe a system that supports at least the follow...
Design reliable high-volume chatbot system
You are designing the backend for a chatbot / AI assistant service (similar to a support bot or meeting assistant). Many users may send messages at th...
Design a GPT chat UI with snapshots and sharing
System Design: End-to-End Web App for Interacting with a GPT-like Model Context You are designing a multi-tenant, browser-based SaaS application that ...
Design a CI/CD pipeline
System Design: Scalable CI/CD for Dozens of Microservices Context You are designing a CI/CD platform to support dozens of polyglot microservices (e.g....
Design a CI/CD pipeline
Design a CI/CD Pipeline for a Microservices Platform Context You are designing a CI/CD system for a containerized microservices platform deployed to c...
Design credit balance with vector-clock expirations
Credit Balance Service with Vector-Clock Expiries You are designing a backend service that maintains per-user promotional credits. Credits are granted...
Design a minimal ChatGPT with presets
System Design: Minimal ChatGPT-like Service With Reusable Presets Context Design a multi-tenant conversational AI service that supports reusable prese...
Design an online ads serving system
System Design: Low-Latency Targeted Ad Serving (≤100 ms E2E) You are designing an online advertising serving system for web/app inventory with a stric...
Design multi-tenant CI/CD platform
System Design: Multi‑Tenant CI/CD Platform Context Design a cloud-native, multi-tenant CI/CD platform that integrates with popular source control prov...
Design a multi-tenant Slack-like messenger
System Design: Multi‑Tenant B2B Team Messaging (Slack‑like) Design a multi‑tenant, enterprise‑grade team messaging platform similar to Slack. Function...
Design a CI/CD pipeline with scheduler
System Design: Production‑Grade CI/CD for a Large Microservices Monorepo Context You’re designing a scalable, secure CI/CD platform for a large monore...
Design a multi-tenant CI/CD platform
System Design: Multi-tenant CI/CD Platform Context Design a hosted, multi-tenant CI/CD platform that supports many organizations, repositories, and re...
Design multi-tenant CI/CD workflow system
Design a Multi-Tenant CI/CD System Triggered by Git Pushes Context and Assumptions - An internal service sends a push event for each Git push containi...
Design an in-memory database
System Design: In-Memory Database Engine (Single-Node Core, Scale-Out Aware) Context Design the core of an in-memory, single-node database engine inte...
Design a CI/CD Pipeline
System Design: End-to-End CI/CD Pipeline for a Large-Scale Engineering Org Context You are designing a CI/CD platform for a large engineering organiza...
Design a GPU credit allocation service
Design a Multi‑Tenant GPU Credit Allocation Service Context You are designing a multi-tenant platform where organizations run GPU jobs. Each organizat...
Design an in-memory key-value database
Design an In-Memory Key–Value Database (Technical Screen) Context Build an in-memory key–value (KV) database that offers high-throughput, low-latency ...
Design a fullstack app with frontend focus
Design a Full‑Stack Web Application (Frontend Emphasis) Context You are given a 2–3 page requirements document and a short demo (screenshots + an anim...