Amazon Interview Questions

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

Levenshtein Edit Distance

An edit distance is a way to quantify how different two strings are. This is calculated using **the minimum number of transformations to turn one string to another**. The transformations include insertion , deletion , and substitution . So when comparing two identical strings, say cat and ca...

Difficulty: 7/10

Two Sum

This is a classic and very common interview problem. Given an array of integers, return the indices of the two numbers in it that add up to a specific "goal" number. Suppose we had an array 1, 3, 6, 7, 9 , and let's say our "goal" number was 10 . Our numbers to sum to it could be 3 and 7 , an...

Difficulty: 4/10

Find Missing Number in Array

We're given an array of continuous numbers that should increment sequentially by 1 , which just means that we expect a sequence like: 1, 2, 3, 4, 5, 6, 7 However, we notice that there are some missing numbers in the sequence. 1, 2, 4, 5, 7 Can you write a method missingNumb...

Difficulty: 4/10

Length of String Compression

Let's define the "compacting" of a string as taking an input like the following: 'sstttrrrr' . We want to take the number of sequential appearances number of times it shows up in a row of each letter: s: 2 t: 3 r: 4 And denote them next to the original character in the string,...

Difficulty: 6/10

Validate Palindrome

Given a string str , can you write a method that will return True if is a palindrome and False if it is not? If you'll recall, a palindrome is defined as "a word, phrase, or sequence that reads the same backward as forward". For now, assume that we will not have input strings that contain spec...

Difficulty: 3/10

Max Rectangle in a Histogram

We're given a histogram like the following, where contiguous sharing a common border or touching bars are made up of different heights. Let's assume all bars have the same width. The histogram is converted to an array of the heights of the bars: js const histArr 3, 1, 4, 2, 2, 1 ...

Difficulty: 8/10

Reverse Only Alphabetical

Reversing Only Alphabetical Characters in a String ! Visual Diagram https: storage.googleapis.com algodailyrandomassets curriculum easy strings reverse only alphabetical.png The Problem Statement You are provided with a string that's a blend of alphabetic and non alphabetic characters. T...

Difficulty: 3/10

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

Is A Subsequence

Given two strings, one named sub and the other str , determine if sub is a subsequence of str . js const str "barbell" const sub "bell" isASubsequence sub, str true For the sake of the exercise, let's assume that these strings only have lower case characters. W...

Difficulty: 5/10

Introduction to Amazon S3: Simple Storage Service

Amazon Web Service: Simple Storage Service Amazon created the Simple Storage Service, more commonly known as Amazon S3, through Amazon Web Service AWS to make **web scale** processing features more accessible to customers. **Amazon S3** is a well known service that enables us to read and st...

Difficulty: 5/10

Introduction to Amazon Relational Database Service

Amazon Relational Database Service AWS RDS **Relational Database Service RDS ** is a prominent Amazon web services tool. RDS is designed to take care of SQL data applications while simultaneously helping an array of SQL databases to store and organize documents. RDS also offers significant da...

Difficulty: 5/10

Introduction to Amazon Redshift

Amazon Redshift **Amazon Redshift** is a cloud based data collection and storage service. Amazon Redshift makes it possible for a customer to use business intelligence, or BI, techniques to evaluate quantitative data and make managing large scale datasets simpler. In Redshift, **Big Red** refers...

Difficulty: 5/10

Interview Reports

A couple weeks ago, I wrote an article about how I landed 7 job offers from companies including Amazon, Oracle, and Google in just 8 weeks of searching, as a software engineer with a nonstandard…

How I got 7 Job Offers in 8 Weeks (Part 2: The Interview)...

Software Engineer

A couple weeks ago, I wrote an article about how I landed 7 job offers from companies including Amazon, Oracle, and Google in just 8 weeks of searching, as a software engineer with a nonstandard…

I started leetcode as a daily routine early Nov 2018 while I was taking part time online master couse Machine Learning at Geogia Tech and having full time job. It was quite hard to find enough time…

How I leetcode for 6 months and land a job in FAANG (Facebook, Amazon, Appl...

Software Engineer

I started leetcode as a daily routine early Nov 2018 while I was taking part time online master couse Machine Learning at Geogia Tech and having full time job. It was quite hard to find enough time…

This triple-major from Indiana was offered a full-time position at Amazon a year before she could start working there.

How an Entry-Level UX Designer at Amazon Got Her Foot in the Door...

Ux Designer

This triple-major from Indiana was offered a full-time position at Amazon a year before she could start working there.

Michael Forzano has worked at Seattle’s e-commerce giant for nearly six years, using a regular laptop with a screen he’s never seen.

What It’s Like To Be A Blind Software Engineer At Amazon...

Software Engineer

Michael Forzano has worked at Seattle’s e-commerce giant for nearly six years, using a regular laptop with a screen he’s never seen.

I've Been Acquired by Amazon...

Software Development Engineer

People at Amazon Say

This information was sourced from reviews originally posted on Glassdoor.

Challenging work. Bright Co-workers. Company resources such as wiki and other internal tools(Brazil, etc) are well managed. Mentorship program. Revolving door of employees Only had a manager for 6 months at the longest,Tech Debt on teams can hinder project development. On-Call Rotation Constant changing of requirements from upper management. Find team members that are passionate about the work. When passing off management to new managers, ensure that the goals and tenets of the projects are clearly identified and agreed upon with legacy team members.

Almost an ecosystem to work at - considering it's scale and different departments, it's a fast-paced internet company that it's changing the way people shop. It's open to ideas, new improved processes and at par with what's happening around the web world. Since the scale is massive, it takes more than one team to make any quick change. While the company is agile, it can take several months to make a small change happen.

Amazon has amazing and high-efficient management strategy. Here, I understood why this company continues growing rapidly given that the turnover rate is bigger than companies like Google and a lot of people have short tenure. Amazon is my first job, and I changed from a student to an industry leader after staying at Amazon for 3 years. Amazon has a lot of smart and passionate people. They are role models for my career and technical growth. I benefited from working here with them. Amazon functions like a startup, and I was impressed by a lot of new and great ideas popped up from people's brains every day.

Excellent Work Culture, Compensation, Perks and also the work. Lots to learn, literally everything in tech is being used here and much more. Some really challenging work with really good salary. They pay more than the market. Chaps working around are really tech sound and usually helping but that may vary from team to team. Please focus on engineering skills of individual along with customer, treat employees as customer to the company.