eBay

eBay Inc. is an American multinational e-commerce corporation based in San Jose, California, that facilitates consumer-to-consumer and business-to-consumer sales through its website. eBay was founded by Pierre Omidyar in 1995, and became a notable success story of the dot-com bubble.

Interview Questions

Learn and Practice on almost all coding interview questions asked historically and get referred to the best tech companies.

Problem Title

Exp

Difficulty

Avg. time

Attempted

Upvotes

Boundary Traversal of Binary Tree

120

Hard

20 mins

56.9k

677

Merge K Sorted Arrays

Moderate

15 mins

51.3k

329

Implementation: HashMap

Easy

30 mins

8.5k

316

Merge k sorted lists

120

Hard

25 mins

19.4k

145

Check Bipartite Graph

Moderate

50 mins

14.1k

140

Evaluation of postfix expression

Easy

15 mins

4.8k

134

Normal BST To Balanced BST

Moderate

15 mins

17.7k

107

Serialize and Deserialize Binary Tree

120

Hard

15 mins

7.2k

Data Stream As Disjoint Intervals

Moderate

30 mins

2.1k

Rearrange string

120

Hard

50 mins

4.1k

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Interview Experiences

Gain the Edge You Need at your next technical interview with Coding Ninjas.s unlimited interview problems practices for eBay

Upvote

eBay | Software Developer | Fresher | May 2015

Published on 6 Apr 2022

Upvote

eBay | Senior Software Engineer | Experienced | Nov 2025

Published on 1 Jan 2026

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Guided Paths

Here is your ultimate guide for cracking your dream job interview, you can choose your tracks and start preparing for eBay

Data structures & algorithms (Beginner to Intermediate)

If you are a complete beginner to data structures / want quick content to revise and practise questions for placements, this is the guided path for you . This guided path covers the absolute basics introducing every data structure, its need and then checks your understanding with relevant coding questions and mcqs to solve, so that you can have an all round understanding of the concepts studied.