Interview preparation at Anthropic

Company overview

• Builds reliable, interpretable, and steerable AI systems with a focus on safety and societal benefit.
• Differentiates through AI safety research, interpretability techniques, and RL from human feedback.
• Positions as a Public Benefit Corporation advancing frontier AI responsibly via research, policy, and products.

Products

• Claude AI models

Culture

• Collaborative teams of researchers, engineers, policy experts, and operations leaders fostering innovation.
• Diverse experiences from NASA, startups, and armed forces in a supportive work environment.
• Emphasis on modern workspaces with wellness, recreation, and flexible collaboration spaces.

Values

• Commitment to building safe, reliable, and beneficial AI systems.
• Expertise in research, engineering, policy, and operations.
• Focus on interpretability, steerability, and long-term societal impact.

Strategic priorities

• Develop safer, reliable, interpretable, and steerable frontier AI systems.
• Conduct research on AI safety, scaling laws, and societal impacts.
• Deploy AI via products like Claude and partnerships.
• Engage in policy to promote safe AI development.

Current moment

growth/expansion/new products

Selection timeline

1. Recruiter Call

   A 30-minute call with a recruiter to discuss your background, recent work, interest in Anthropic, and fit for building careful systems. They evaluate clear communication about your experience and motivations. This initial vibe check typically lasts 30 minutes.

2. CodeSignal Online Assessment

   A 90-minute coding test focusing on practical problem-solving, often Python-heavy with algorithmic challenges like building a multithreaded web crawler or finding duplicate files. Candidates code in a shared environment, debug, and discuss tradeoffs. Expect fundamental questions at 2x speed intensity.

3. Hiring Manager Screen

   A 1-hour technical phone screen or tech screen with the hiring manager, involving live coding or problem-solving like stack trace analysis to identify slow code parts. They assess reasoning and basic technical fit. Duration is typically 60 minutes.

4. Technical Interview Loop

   4-5 rounds of 55-minute interviews covering live coding, system design, LLM/prompt engineering, and culture fit or research brainstorming. Each focuses on clear reasoning, robust design, tradeoffs, and edge cases in tools like Google Colab. Python and concurrency emphasized.

5. Project Deep Dive

   A presentation of an end-to-end shipped project to 1-2 engineers or managers using Notion or similar, followed by deep questions on decisions and impact. Evaluates technical depth and ownership. Typically part of final rounds, 45-60 minutes.

6. Reference Checks & Team Matching

   Parallel process after technical rounds where Anthropic contacts provided references for insights on technical skills, collaboration, and impact; simultaneous team matching occurs. Variable duration of 2-4+ weeks.