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

Someone at Zillow says...

The company as a whole is headed for some exciting times in the real estate space, affording many to enjoy the job security that lies ahead, along with excellent perks. Listen to your subordinates with an open mind. Years of experience is meaningless if you are not willing to listen to differing perspectives, especially if bad decisions are being made. If you are confident in your past experience, you should be ready to at least provide your own perspective based on your experience rather than to be dismissive without comment.

Zillow Interview Questions

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

Lowest Common Ancestor

In the official React documentation https: reactjs.org docs thinking in react.html , it's recommended that to find out where state data should live, the following steps be taken: Identify every component that renders something based on that state. Find a common owner component a single com...

Difficulty: 7/10

Fibonacci Sequence

Implement a function that returns the Fibonnaci number for a given integer input. In a Fibonacci sequence, each number is the sum of the two preceding ones. The simplest is the series: 1, 1, 2, 3, 5, 8, etc. This is because: fibonacci 0 0 fibonacci 1 1 fibonacci 2 1 fibonacci 3 ...

Difficulty: 4/10

String Breakdown

We're given a string and need to see if it can be broken down into words from a dictionary array. For example: js const str "applecomputer" const dictArr "apple", "computer" stringBreakdown str, dictArr true Assuming that there are no repeats in the dictionary array, ca...

Difficulty: 7/10

Flood Fill Paintbucket

Imagine the implementation for the paintbucket feature in Microsoft Paint, or how certain image filters work. You click on a specific pixel on a screen, and every similar colored neighboring pixel would change to your selected color. Let's implement a simpler version of that feature. You're gi...

Difficulty: 7/10

Detect Substring in String

How would you write a function to detect a substring in a string? If the substring can be found in the string, return the index at which it starts. Otherwise, return 1 . js function detectSubstring str, subStr return 1 Important do not use the native String clas...

Difficulty: 4/10

Dutch National Flag Problem

This problem is named the "Dutch national flag problem" because the flag of the Netherlands is comprised of the colors red, white, and blue in separate parts. Although we won't be using colors, the premise of the challenge is to develop a sorting algorithm that performs some form of separations of th...

Difficulty: 8/10

Invert a Binary Tree

Can you invert a binary tree over its vertical axis? This is a famous problem made popular by this tweet: Google: 90 of our engineers use the software you wrote Homebrew , but you can t invert a binary tree on a whiteboard so f**k off. mdash Max Howell mxcl June 10, 2015 Given a binary t...

Difficulty: 7/10

How Many Strongly Connected

Given a directed graph lessons simple reference to graphs represented via an adjacency list, write a class StronglyConnectedComponents with a count method that would return the number of strongly connected components in a graph. The definition of a strong connected component is a subgr...

Difficulty: 8/10

Bottom Left Node Value

Assume we're using a binary tree lessons an intro to binary trees and search trees in writing a video game via Binary Space Partitioning https: en.wikipedia.org wiki Binary_space_partitioning . We need to identify the bottom left leaf, that is the leftmost value in the lowest row of the bi...

Difficulty: 4/10

Is This Graph a Tree

Given an undirected graph, can you see if it's a tree? If so, return true and false otherwise. An undirected graph lessons simple reference to graphs is a tree based _on the following conditions_: first, there cannot be a cycle. Second, the graph lessons simple reference to graph...

Difficulty: 7/10

Telling the Story with Data

Still generating... This lesson is currently still being generated, please wait... thanks! **Please refresh in a minute or two to see updates.** ...

Difficulty: 5/10

Stacks and Queues

The concept of a **stack** is similar to a stack of books or plates, where the last item placed on top is the first item to be removed. In computer science, a stack is a data structure that follows a similar last in, first out LIFO order. Imagine you have a pile of plates, and you want to add mo...

Difficulty: 5/10

People at Zillow Say

This information was sourced from reviews originally posted on Glassdoor.

Benefits - The benefits Zillow offers are numerous. Free snacks/drinks, gym reimbursement, time-off (vacation, parental leave), etc. Culture - Zillow really cares about its employees. There are various networks to foster a sense of belonging for marginalized groups, career development opportunities, emphasis on well-being and work-life balance, etc. I also love that despite being a mid sized company, it's still got a tech startup feel to it. Internal Mobility - Plenty of opportunities for career development. Zillow really invests in the growth of their employees. Innovation - Zillow is constantly iterating and never stagnating. I love that things are constantly changing, it really keeps you on your feet.

Benefits are solid. A ton of opportunity to own your career development. Fast-moving, so there’s always a new challenge or opportunity to take on. Leadership is very transparent about decision making and planning. Everybody that you work with is super friendly and very mission-driven. Has gone through a few re-orgs and some shuffling, but I hope that once the dust settles, then everything will get back to normal. ZG is experience an interesting shift in product development and direction, so sometimes it feels like I’m a bit late to find out about an update, but that’s just the business of a fast moving tech company. I wish there was a cash bonus structure. Transparency is huge, so please continue that! I would also recommend continuing to invest in training and L&D in order to train and retain the awesome talent at the company.

Zillow hires the absolute brightest people on the planet. You will be surrounded by these people day and in and day out, challenging you, helping you grow and making you a better professional and person. I'm incredibly happy to have had the opportunity to work among such an exceptional group of people. Due to the highly selective nature of who they hire, the culture is by far one of the best in the world. It's not because of all the "fluff" (free food, free travel, insane holiday parties, incredible events, and the unlimited supply of office supplies to ensure you have what you need). No, it's truly the feel when walking through the doors of a Zillow office, regardless of location. You feel the energy, the drive, the endless pursuit to accomplish the Zillow mission.

They really have an amazing group of people. I've worked cross-functionally on multiple projects and only rarely have I found people too busy or not willing to help. - There's always something new. You will never be bored working here. Plus, you can pursue what you want with, typically, much encouragement from your peers. - They offer great work-life balance. In fact, they discourage overworking and teams make an effort to adjust if the work gets to be too much. Setup reviews for contractors at a set cadence on all teams and convert the ones that are valuable to the team and the organization. There's nothing worse than talented people wasting away and losing motivation because they don't feel valued.