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 medium difficulty System Design question, commonly asked during Technical Screen rounds at Anthropic.

What role is this question designed for?

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

Design a one-to-one chat system

Last updated: Jun 17, 2026

Quick Overview

This question evaluates a candidate's ability to design scalable, real-time one-to-one messaging systems, testing competencies in transport choice for server→client push, presence detection, durable message storage and delivery semantics, ordering, idempotency, and technology trade-offs between short-lived online state and durable pipelines.

|Home/System Design/Anthropic

Design a one-to-one chat system

Anthropic

Mar 28, 2026, 12:00 AM

mediumSoftware EngineerTechnical ScreenSystem Design

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Design a one-to-one chat system

Last updated: Jun 17, 2026

Quick Overview

|Home/System Design/Anthropic

Design a one-to-one chat system

Anthropic

Mar 28, 2026, 12:00 AM

mediumSoftware EngineerTechnical ScreenSystem Design

Submit Your Answer to Earn 20XP

Loading comments...

Browse More Questions

More System Design•More Anthropic•More Software Engineer•Anthropic Software Engineer•Anthropic System Design•Software Engineer System Design

Your design canvas — auto-saved