Epam Systems vs PayPal Interview Questions
Epam Systems lists 46 LeetCode interview questions while PayPal lists 105. They share 20 problems — 43% of Epam Systems's bank and 19% of PayPal's. Focus on the overlap first, then drill into 26 Epam Systems-only and 85 PayPal-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 20 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Epam Systems and PayPal.
Step 2 — Company-specific depth: Add Epam Systems-specific problems like Minimum Operations to Make a Uni-Value Grid, Longest Common Prefix, Merge Sorted Array and PayPal-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: PayPal skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
20 Shared Questions
High-priority problems to practice for both Epam Systems and PayPal.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Valid Parentheses | Easy |
| Move Zeroes | Easy |
| Longest Palindromic Substring | Medium |
| Valid Anagram | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Group Anagrams | Medium |
| House Robber | Medium |
| Longest Consecutive Sequence | Medium |
| Trapping Rain Water | Hard |
| 3Sum | Medium |
| First Unique Character in a String | Easy |
| Merge Intervals | Medium |
| LRU Cache | Medium |
| Maximum Subarray | Medium |
| First Missing Positive | Hard |
| Top K Frequent Elements | Medium |
| Kth Largest Element in an Array | Medium |
| Median of Two Sorted Arrays | Hard |
Unique to Epam Systems (26)
Problems in Epam Systems's list that do not appear at PayPal.
| Problem | Difficulty |
|---|---|
| Minimum Operations to Make a Uni-Value Grid | Medium |
| Longest Common Prefix | Easy |
| Merge Sorted Array | Easy |
| Rotate Array | Medium |
| Reverse String | Easy |
| Partition Equal Subset Sum | Medium |
| String Compression | Medium |
| Reverse Vowels of a String | Easy |
| Generate Parentheses | Medium |
| Add Two Numbers | Medium |
| Palindrome Number | Easy |
| Maximum Difference Between Node and Ancestor | Medium |
Unique to PayPal (85)
Problems in PayPal's list that do not appear at Epam Systems.
Frequently Asked Questions
How many LeetCode questions do Epam Systems and PayPal share?
Epam Systems and PayPal share 20 LeetCode interview questions. 26 problems appear only in Epam Systems's list and 85 appear only in PayPal's list.
What topics overlap most between Epam Systems and PayPal?
The most common shared topics between Epam Systems and PayPal are Array (14 shared questions), Hash Table (9 shared questions), String (6 shared questions), Sorting (6 shared questions), Dynamic Programming (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Epam Systems or PayPal?
Epam Systems has 16 Easy, 27 Medium, and 3 Hard questions. PayPal has 19 Easy, 69 Medium, and 17 Hard questions. PayPal has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Epam Systems and PayPal?
Start with the 20 shared problems since they cover what both companies ask most often. Then add 20 Epam Systems-specific and 20 PayPal-specific questions to round out your prep.