Anthropic

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

Data Scientist • Coding • medium

Given a table `claude_generations` with columns `user_id`, `prompt_length`, `generation_time_ms`, and `timestamp`, write a SQL query to calculate the 95th percentile latency for each user tier (join with `users` table) over the last 30 days.

#Window Functions #Percentiles #Performance Metrics
Practice
Data Scientist • Coding • medium

Given a table `user_interactions`, write a SQL query to find all users who have triggered the safety filter (`is_blocked = TRUE`) more than 3 times within any rolling 24-hour window.

#Rolling Windows #Self Joins #Anomaly Detection
Practice
Data Scientist • Coding • medium

Write a SQL query to calculate the rolling 7-day average of human preference win-rates for Claude 3 versus Claude 2, partitioned by the evaluation domain.

#SQL #Window Functions #Time Series
Practice
Data Scientist • Coding • medium

Write a SQL query to identify the top 1% most active API users based on token consumption over the last 30 days, excluding internal Anthropic test accounts.

#SQL #Percentiles #Filtering
Practice
Data Scientist • Coding • medium

Given a table of human evaluations, write a SQL query to find the specific prompts that have the highest variance in human helpfulness ratings (indicating subjective or ambiguous prompts).

#SQL #Aggregation #Statistics
Practice
Data Scientist • Coding • medium

Write a SQL query to find the top 5% of users by token usage who have also triggered the safety filter more than 3 times in the last 30 days.

#Window Functions #Filtering #Aggregations
Practice
Data Scientist • Coding • hard

Given a table of user prompts with timestamps, write a SQL query to group these prompts into 'sessions'. A new session starts if there is a gap of more than 30 minutes between prompts.

#Sessionization #Window Functions #Time Series
Practice
Data Scientist • Coding • medium

Write a SQL query to calculate the week-over-week retention rate of users who interacted with a specific new model version.

#Cohort Analysis #Retention #Self Joins
Practice
Data Scientist • Coding • medium

How would you identify potential prompt injection attempts in our logs using a combination of regex and SQL?

#Regex #Security #Text Processing
Practice
Data Scientist • Coding • easy

Write a SQL query to calculate the 7-day rolling average of API requests per organization.

#Moving Averages #Window Functions
Practice

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Senior Engineer

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