How do I approach System Design interview questions?

System Design questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master system design interviews.

What difficulty level is this interview question?

This is a hard difficulty System Design question, commonly asked during Technical Screen rounds at OpenAI.

What role is this question designed for?

This question is commonly asked for Software Engineer candidates at OpenAI during technical interviews.

Design a team chat system

Last updated: Apr 2, 2026

Quick Overview

This question evaluates expertise in large-scale system design and distributed systems, focusing on real-time messaging, data modeling for users and conversations, API design, consistency and availability trade-offs, storage/partitioning, indexing, delivery/fan-out mechanisms, and message ordering guarantees.

|Home/System Design/OpenAI

Design a team chat system

OpenAI

Oct 31, 2025, 12:00 AM

hardSoftware EngineerTechnical ScreenSystem Design

Submit Your Answer to Earn 20XP

Loading comments...

Browse More Questions

More System Design•More OpenAI•More Software Engineer•OpenAI Software Engineer•OpenAI System Design•Software Engineer System Design

Your design canvas — auto-saved

Design a team chat system

Last updated: Apr 2, 2026

Quick Overview

|Home/System Design/OpenAI

Design a team chat system

OpenAI

Oct 31, 2025, 12:00 AM

hardSoftware EngineerTechnical ScreenSystem Design

Submit Your Answer to Earn 20XP

Loading comments...

Browse More Questions

More System Design•More OpenAI•More Software Engineer•OpenAI Software Engineer•OpenAI System Design•Software Engineer System Design

Your design canvas — auto-saved