Anthropic
AI safety and research company behind Claude, focusing on constitutional AI.
5 Rounds
~20 Days
Very Hard
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
Full Stack Engineer
•
Coding
•
medium
Implement a React component that consumes a Server-Sent Events (SSE) endpoint to display a streaming text response from an LLM. It must gracefully handle connection drops and auto-scroll to the bottom as new text arrives.
#React
#SSE
#Streaming
#DOM Manipulation
Full Stack Engineer
•
Coding
•
medium
Build a custom React hook `useChat` that manages message state, handles loading states, and provides a function to abort an ongoing LLM generation using AbortController.
#React Hooks
#State Management
#Fetch API
#AbortController
Full Stack Engineer
•
Coding
•
medium
Implement a debounce function that delays invoking a function until after `wait` milliseconds, but also guarantees execution at least once every `maxWait` milliseconds (useful for auto-saving chat drafts).
#JavaScript
#Timers
#Closures
Full Stack Engineer
•
Coding
•
medium
Write a function to recursively traverse a DOM tree and extract its text content while maintaining semantic spacing (e.g., adding line breaks for block elements like <p> or <div>).
#DOM
#Recursion
#Trees
Full Stack Engineer
•
Technical
•
hard
How do you optimize a frontend application to handle rendering massive DOMs, such as displaying a 100,000-word context window in a chat UI without freezing the browser?
#Performance
#Virtualization
#DOM
#Web Workers
Full Stack Engineer
•
Technical
•
medium
Explain how you would implement optimistic UI updates for a chat application where the server validation (e.g., a safety filter) might occasionally fail and reject the message.
#UX
#State Management
#Error Handling
Difficulty Radar
Based on recent AI-sourced data.
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The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
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Think Out Loud
Always explain your thought process before writing code or drawing architecture.