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eBay Interview Questions eBay Interview Reports Engineering at eBay Career Levels and Compensation

Someone at eBay says...

Very good organisation , with lot of values and employee caring. Good facilities like gym, cab, cafeteria. Platforms BU working in cutting edge technologies. Politics, Politics ,Politics everywhere. Don't ever join the Commerce Experience BU in PDCI. There are lot of teams in this BU which just does maintenance. The culture is so sick that no matter how much you work, at the end your rating depends on how close you are with manager. There are lot of incapable managers who worked as contractors from companies like CSC and got converted as FTE's. Most of those managers follow a service company like culture.

eBay Interview Questions

Note: ensure you read the disclaimer on the previous page reading the accuracy and sourcing of these problems.

Nth Smallest Number in a Stream

Many modern programming languages have the notion of a stream. A stream is a resource _that's broken down_ and sent usually over a network in small chunks. Imagine a video that's playing it would be inefficient to need to download an entire 1 gigabyte movie before being able to watch it. Inste...

Difficulty: 7/10

Single Lonely Number

In a given array of numbers, one element will show up once and the others will each show up twice. Can you find the number that only appears once in O n linear time? Bonus points if you can do it in O 1 space as well. lonelyNumber 4, 4, 6, 1, 3, 1, 3 6 lonelyNumber 3, 3, 9 9...

Difficulty: 3/10

Mean Per Level

We are given a binary tree lessons an intro to binary trees and search trees and are tasked with writing a method that determines the average of every level in the tree. So for instance, given the following binary tree, we'd get 2, 5, 7 if the method grabbed the correct means. js ...

Difficulty: 4/10

Reverse a String

Hey there, welcome to the **challenges** portion of the **AlgoDaily** technical interview course! Over the next few days, you'll get some hands on experience with the essential data structures and algorithms that will help you nail your interview, and land your dream software engineering job. The ...

Difficulty: 2/10

How Deep Does It Go? Maximum Depth of Binary tree

Write a method to determine how deep a binary tree lessons an intro to binary trees and search trees goes. The tree's depth can be described as the number of nodes you encounter as you traverse from the root node to a leaf . The root node is the topmost node, and a leaf is a node wi...

Difficulty: 6/10

Reverse a Linked List

You're sent a linked list of numbers, but it's been received in the opposite order to what you need. This has happened multiple times now, so you decide to write an algorithm to reverse the lists as they come in. The list you've received is as follows: 7 2 21 6 42 10 Write ...

Difficulty: 6/10

Swap Every Two Nodes in a Linked List

Write a recursive algorithm that swaps every two nodes in a linked list. This is often called a pairwise swap. For example: js * original list 1 2 3 4 after swapping every 2 nodes 2 1 4 3 * You may assume that the definition of a linked list node is: ...

Difficulty: 4/10

The Coin Change Problem

If I give you coins of denominations 3, 7, 9 a coin worth 3 cents, a coin worth 7 cents, etc. , can you tell me the minimum number of coins that are needed to make a total of 37 ? You can assume that an infinite supply of all these coins are available to you. This challenge is about so...

Difficulty: 8/10

Implement a Binary Search Tree

Let's implement a Binary Search Tree ! Recall that a binary search tree , or a BST , is a binary tree lessons an intro to binary trees and search trees that is ordered via these two properties: 1. The left sub tree of a node has a value less than or equal to its parent node's value. 2. The ...

Difficulty: 6/10

Balanced Brackets

As a software engineer, you'll often be asked to optimize programs. One of the easiest ways to do so is by the introduction of an additional data structure. Here's another classic problem along the same vein. We're provided a string like the following: " " that is inclusive of the following ...

Difficulty: 5/10

Monoliths vs. Microservices for Junior Engineers

The **monolith versus microservices** architecture debate has been around for years. Some claim that a monolith architecture is the best option if we're working from scratch. Others believe that the advantages of microservices outweigh the initial hassle of creating multiple servers. In this tutor...

Difficulty: 5/10

Coin Change Problem

Introduction to Coin Change Problem The coin change problem is a classic algorithmic problem that involves finding the minimum number of coins needed to make a certain amount of change. Given a set of coin denominations and an amount, the goal is to determine the fewest number of coins needed ...

Difficulty: 5/10

People at eBay Say

This information was sourced from reviews originally posted on Glassdoor.

Good benefits (4% 401k match, paid maternity/paternity leave, tuition assistance, ride sharing reimbursement, work from home) - Ok pay (Average base salary, 10% annual bonus, stocks) - Work-life balance - Most people are very helpful and easy to work with. Boring projects, menial tasks, little freedom, too many processes. Don’t let the location trick you, eBay is not a Silicon Valley company - this is a horrible place to work at as a passionate developer who want to build and ship things. If you chose to be a developer because coding is your passion, you’ll absolutely hate this place. But you’ll love it if you care most about retirement and benefits.

Very relaxing atmosphere. Long lunch breaks. Ping pong table. Low stress environment. Nice people. Excellent location Good holidays, pay, and benefits. The job was advertised as being a startup job at a cool company with exposure to modern technologies(Clojure, Ruby on Rails, React). The overwhelming bulk of the work was maintaining an incredibly poorly architected codebase in Java 7 written by the acquirer (ebay), exactly as instructed by the US office. Decisions take almost forever to make. Feedback is loudly welcomed and then promptly discarded.

eBay, by its very definition, is an economic force that helps mitigate the polarization of wealth. It makes commerce accessible anyone with an internet connection. The team I work with is exceptional, full of people that are both intelligent and kind, who are challenge-oriented and care about our projects and one another. I have been a software engineer for 15 years, and have experienced what we all have experienced, the various joys and frustrations inherent in our business. I have never been happier than I am at eBay, no kidding.

I started working at eBay right out of college and it provided me a great way to grow as an engineer. A lot of the people really care about the product as well, which makes everyone want the company to succeed. It's a big enough company that there are so many software systems to learn. A lot of what you learn will not really carry over into new companies either. Keep hiring new grads and young engineers to keep the workplace attractive to work in.