Stripe
Payments infrastructure with sophisticated fraud detection and data systems.
4 Rounds
~21 Days
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
Data Scientist
•
Coding
•
medium
Write a SQL query to find the top 3 merchants by total processing volume who also have a dispute rate greater than 1% in the current year.
#CTEs
#Filtering
#Sorting
#Limit
Data Scientist
•
Coding
•
medium
Write a SQL query to calculate the 7-day rolling average of the dispute rate for each merchant over the last 30 days.
#Window Functions
#Time Series
#Aggregations
Data Scientist
•
Coding
•
hard
Write a SQL query to identify potential 'card testing' attacks. Define card testing as a single IP address attempting more than 20 small transactions (under $5) that fail authorization within a 10-minute window.
#Self Joins
#Window Functions
#Fraud Detection
Data Scientist
•
Coding
•
medium
Write a SQL query to find the month-over-month growth rate of Monthly Recurring Revenue (MRR) for Stripe Billing users.
#LAG function
#Time Series
#Revenue Analytics
Data Scientist
•
Coding
•
medium
Write a SQL query to find all merchants who have churned (defined as having no processed volume in the last 30 days) but still have active Stripe Billing subscriptions.
#Joins
#Date Functions
#Filtering
Data Scientist
•
Coding
•
easy
Write a SQL query to calculate the conversion rate of Stripe Checkout sessions, broken down by browser type (Chrome, Safari, Firefox).
#Aggregations
#CASE WHEN
#Group By
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
SimulateUnwritten Rules
Think Out Loud
Always explain your thought process before writing code or drawing architecture.