Stripe

Payments infrastructure with sophisticated fraud detection and data systems.

4 Rounds ~21 Days 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 Data Engineer 7 Data Scientist 6 Full Stack Engineer 1 Machine Learning Engineer 1 Product Manager 2 Software Engineer 1

All Topics System Design 8 SQL 7 Algorithms 6 Experience 2 Data Processing 2 Collaboration 1 Big Data 1 Data Governance 1

Data Engineer • Coding • medium

Write a SQL query to calculate the 7-day rolling average of payment failures per region, given a table of transactions.

#Window Functions #Aggregations #Time Series

Practice

Data Engineer • Coding • medium

Write a SQL query to find all merchants whose dispute (chargeback) rate exceeded 1% in the last 30 days, requiring at least 100 total transactions.

#Filtering #Ratios #Conditional Aggregation

Practice

Data Engineer • Coding • hard

Calculate the Monthly Recurring Revenue (MRR) for each month given a table of Stripe Billing subscription events (start, upgrade, downgrade, cancel).

#Complex Aggregations #State Tracking #Financial Metrics

Practice

Data Engineer • Coding • hard

Write a SQL query to find the top 3 most common sequences of 3 page visits before a user abandons the Stripe Checkout flow.

#Funnel Analysis #LEAD/LAG #Pathing

Practice

Data Engineer • Coding • easy

Write a SQL query to identify 'churned' merchants (no successful transactions in the last 60 days) and retrieve their last known transaction amount.

#Date Functions #Joins #Subqueries

Practice

Data Engineer • Coding • medium

Write a SQL query to calculate the median time difference between a user creating a Stripe account and their first successful live charge.

#Percentiles #Date Math #Joins

Practice

Data Engineer • Coding • hard

Write a SQL query to perform a cohort retention analysis, showing the percentage of new Stripe users who processed a charge in each of their first 6 months.

#Cohort Analysis #Pivoting #Self Joins

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.

Simulate

Unwritten Rules

Think Out Loud

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

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