Epam Systems vs Siemens Interview Questions
Epam Systems lists 46 LeetCode interview questions while Siemens lists 25. They share 13 problems — 28% of Epam Systems's bank and 52% of Siemens's. Focus on the overlap first, then drill into 33 Epam Systems-only and 12 Siemens-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 13 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Epam Systems and Siemens.
Step 2 — Company-specific depth: Add Epam Systems-specific problems like Longest Substring Without Repeating Characters, Minimum Operations to Make a Uni-Value Grid, Move Zeroes and Siemens-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Siemens skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
13 Shared Questions
High-priority problems to practice for both Epam Systems and Siemens.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Valid Parentheses | Easy |
| Longest Palindromic Substring | Medium |
| Valid Anagram | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Group Anagrams | Medium |
| Rotate Array | Medium |
| Merge Intervals | Medium |
| LRU Cache | Medium |
| Palindrome Number | Easy |
| First Missing Positive | Hard |
| Top K Frequent Elements | Medium |
| Merge Two Sorted Lists | Easy |
Unique to Epam Systems (33)
Problems in Epam Systems's list that do not appear at Siemens.
| Problem | Difficulty |
|---|---|
| Longest Substring Without Repeating Characters | Medium |
| Minimum Operations to Make a Uni-Value Grid | Medium |
| Move Zeroes | Easy |
| Longest Common Prefix | Easy |
| Merge Sorted Array | Easy |
| Reverse String | Easy |
| House Robber | Medium |
| Partition Equal Subset Sum | Medium |
| Longest Consecutive Sequence | Medium |
| String Compression | Medium |
| Trapping Rain Water | Hard |
| Reverse Vowels of a String | Easy |
Unique to Siemens (12)
Problems in Siemens's list that do not appear at Epam Systems.
| Problem | Difficulty |
|---|---|
| Minimized Maximum of Products Distributed to Any Store | Medium |
| Peaks in Array | Hard |
| Number of Islands | Medium |
| The Skyline Problem | Hard |
| Remove Duplicates from Sorted Array | Easy |
| Maximum Product of Three Numbers | Easy |
| Minimum Add to Make Parentheses Valid | Medium |
| Maximum Product Subarray | Medium |
| Angle Between Hands of a Clock | Medium |
| Single Number III | Medium |
| Clone Graph | Medium |
| Strong Password Checker | Hard |
Frequently Asked Questions
How many LeetCode questions do Epam Systems and Siemens share?
Epam Systems and Siemens share 13 LeetCode interview questions. 33 problems appear only in Epam Systems's list and 12 appear only in Siemens's list.
What topics overlap most between Epam Systems and Siemens?
The most common shared topics between Epam Systems and Siemens are Array (7 shared questions), Hash Table (6 shared questions), String (4 shared questions), Sorting (4 shared questions), Two Pointers (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Epam Systems or Siemens?
Epam Systems has 16 Easy, 27 Medium, and 3 Hard questions. Siemens has 8 Easy, 13 Medium, and 4 Hard questions. Siemens has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Epam Systems and Siemens?
Start with the 13 shared problems since they cover what both companies ask most often. Then add 20 Epam Systems-specific and 12 Siemens-specific questions to round out your prep.