Anthropic

AI safety and research company behind Claude, focusing on constitutional AI.

5 Rounds ~20 Days Very Hard

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The Interview Loop

Recruiter Screen (30 min)

Standard fit check, behavioral questions, and resume overview.

Technical Loop (3-4 Rounds)

Deep dive into domain knowledge, coding, and system design.

Interview Question Bank

All Roles Cloud Engineer 3 DevOps Engineer 1 Frontend Engineer 1 Full Stack Engineer 2

All Topics System Design 122 Algorithms 85 Culture Fit 63 SQL 27 Machine Learning 25 Leadership 25 Data Engineering 14 Security 12

Cloud Engineer • Technical • medium

Walk me through the process of establishing a secure, private connection between an AWS VPC and a third-party SaaS provider without routing traffic over the public internet.

#AWS PrivateLink #VPC Endpoints #Networking #Security

Practice

Cloud Engineer • Technical • medium

Explain how AWS Transit Gateway works and how you would use it to connect dozens of VPCs across different AWS accounts.

#AWS Transit Gateway #VPC Peering #Hub and Spoke #Routing

Practice

Cloud Engineer • Technical • hard

Explain how you would design a secure VPC architecture on AWS to allow Claude inference containers to access external customer APIs (e.g., for tool use) without exposing the inference nodes to the public internet.

#VPC #NAT Gateway #Egress Filtering #Security

Practice

DevOps Engineer • Technical • medium

Explain how DNS resolution works. If an internal service in a VPC cannot resolve an external domain, what specific steps do you take to debug?

#DNS #Troubleshooting #Networking

Practice

Frontend Engineer • Technical • medium

Explain the differences between WebSockets, Server-Sent Events (SSE), and Long Polling. Which would you choose for streaming AI responses and why?

#Protocols #Streaming #WebSockets #SSE

Practice

Full Stack Engineer • Technical • medium

Explain how you would handle WebSocket connection drops and state reconciliation in a real-time collaborative prompt-engineering application.

#WebSockets #State Management #CRDTs/OT

Practice

Full Stack Engineer • Technical • easy

Discuss the trade-offs between using Server-Sent Events (SSE), WebSockets, and long-polling for streaming LLM responses to a web client.

#Protocols #Streaming #Web Architecture

Practice

Difficulty Radar

Based on recent AI-sourced data.

Meet Your Interviewers

The "Standard" Interviewer

Senior Engineer

Focuses on core competencies, system constraints, and clear communication.

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Unwritten Rules

Think Out Loud

Always explain your thought process before writing code or drawing architecture.

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