Machine Coding Sheet
PayPal Machine Coding Interview
Top low-level design (LLD) and machine coding questions frequently asked in PayPal interviews. Master these to clear the LLD round.
Overall progress
0/104 solved
0%
easy0/18
medium0/45
hard0/41
0/104
Solved
Fintech
0/3 solved
| Status | Star | Problem | Difficulty | Key Focus | Notes |
|---|---|---|---|---|---|
Multi-Currency Wallet Asked by:StripePayPalWise+1 more | Medium | FX Rate Service, Rounding | |||
Digital Wallet Asked by:PayPalBlockStripe+1 more | Hard | Command Pattern, Deadlock Prevention, Transaction Rollback, ACID | |||
Digital Wallet (Advanced) Asked by:PayPalBlockStripe | Hard | Serialized Balance Updates |
Commerce
0/2 solved
| Status | Star | Problem | Difficulty | Key Focus | Notes |
|---|---|---|---|---|---|
Price Comparison Engine Asked by:GoogleAmazonPayPal | Easy | Normalization, Entity Matching | |||
Discount Engine Asked by:AmazonWalmartPayPal | Medium | Stacking Policy, Atomic Usage |
Security
0/1 solved
| Status | Star | Problem | Difficulty | Key Focus | Notes |
|---|---|---|---|---|---|
Fraud Detection Rules Engine Asked by:StripePayPalCoinbase+1 more | Hard | Predicate Logic, Thresholds |