The interview process at Amazon Web Services (AWS) typically consists of several stages designed to evaluate both technical skills and cultural fit. Here’s an overview:
Initial Screening: This usually involves a phone or video call with a recruiter to discuss your background, experience, and interest in AWS.
Technical Phone Screen: One or two phone interviews with an AWS engineer focusing on technical skills, including coding, algorithms, and system design. You may be asked to solve problems using an online coding platform.
Onsite Interviews: A series of interviews at an AWS office or virtually, including:
Technical Interviews: In-depth coding, system design, and problem-solving questions. This can include whiteboarding sessions or live coding.
Behavioral Interviews: Questions based on the Amazon Leadership Principles to assess cultural fit. You’ll need to provide examples from your past experiences.
Role-Specific Interviews: Depending on the position, you might face additional interviews focusing on domain-specific knowledge.
Interview questions [1]
Question 1
Technical Questions
Coding Questions:
Implement a function to reverse a linked list.
Write an algorithm to detect a cycle in a graph.
Given an array of integers, find two numbers that add up to a specific target.
System Design Questions:
Design a scalable URL shortening service like bit.ly.
Design a highly available and fault-tolerant database system.
How would you design a distributed caching system?
I applied through a recruiter. I interviewed at Amazon
Interview
The interview process started with an initial recruiter screening, followed by technical interview rounds. The technical interviews focused on data structures, algorithms, problem-solving, and discussing my approach clearly. The interviewers also asked behavioral questions related to teamwork, challenges, and past projects. Overall, the process was structured and professional.
Interview questions [1]
Question 1
Given a binary tree, how would you find the lowest common ancestor of two nodes if each node also has a parent pointer?
I received an Online Assessment (OA) invitation from Amazon. The assessment consisted of two coding questions of medium to hard difficulty, focusing on data structures, algorithms, and problem-solving skills. The questions required efficient solutions with optimized time and space complexity. After the OA, shortlisted candidates typically proceed to one or more technical interview rounds covering coding, system design, and behavioral questions based on Amazon's Leadership Principles.
Applied online via career site, received OA link within 2 days and cleared it, Round 1- DSA, Round-2 DSA, Round 3- System Design, Round 4- Mixed Technical Discussion and Behavioral.
Interview questions [1]
Question 1
Number of Islands (LC 200 - Medium): You are heavily advised to know how to traverse connected components using a 2D grid.