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Company labels help frame practice in a familiar business context. They are directional study aids, not official interview guidance from the companies listed. We keep all paths visible first so hard questions do not disappear.
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PayPal
Foundations Track
Final Wallet Balance
For each account_id, calculate the final wallet balance. Credits add to the balance and debits subtract from it. Return account_id and final_balance ordered ...
PayPal
Foundations Track
Bidirectional Transfer Pairs
Finance operations wants to count how many unique user-to-user transfer relationships exist in the ledger. Transfers between the same two users should count ...
PayPal
Foundations Track
9. Filter PayPal Customer Records Based on Email Domain
As a PayPal data analyst, you are tasked with identifying user profiles that were created with corporate email addresses, specifically those that end with '@...
PayPal
Interview Core Track
Churned Merchants with Pending Payouts
Risk ops needs a cleanup list for merchants who have already churned but still have money waiting to be disbursed. Return the merchant_id values for churned ...
PayPal
Analytics Reporting Track
First Purchase Revenue by Signup Month
Revenue planning wants to understand how much first-time purchase revenue is coming from each merchant signup cohort. Return signup_month and the total value...