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Amazon Software Development Engineer 1 Interview Experience

Software Development Engineer 1

Amazon
July 29, 2026
11 Questions
Selected

Summary

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The Amazon interview process included four rounds, starting with online assessments focused on medium and hard DSA problems, followed by in-person problem-solving rounds featuring graph and interval-based questions, along with discussions on Leadership Principles. The final round involved a deep dive into the candidate's professional experience, including detailed discussions on a generative AI system and data queries. Overall, the interview experience at Amazon appears rigorous, emphasizing a balance of technical complexities and behavioral assessments.

1

ROUND 1 (Online Assessment)

#1

Medium DSA Problem

Solve a Medium level Data Structures and Algorithms (DSA) question related to a topic of your choice.
Dsa
Algorithm
Medium
Medium
#2

Hard DSA Problem

Solve a Hard level Data Structures and Algorithms (DSA) question related to a topic of your choice.
Dsa
Algorithm
Hard
Hard
2

ROUND 2 (Round 1 — In-Person, Problem Solving)

#1

Graph Problem Involving Islands

Discuss a grid/graph problem that involves identifying and counting islands in a given representation. Describe your approach to solving it.
Grid
Graph
Islands
Medium
#2

Minimum Number of Arrows to Burst Balloons

Given a collection of intervals representing the vertical lines of balloons, determine the minimum number of arrows required to burst all the balloons. Use a greedy approach for your solution.
Greedy
Intervals
Balloons
Medium
#3

Discussion on Leadership Principles

Discuss one of Amazon's Leadership Principles and provide an example of how you have applied this principle in your past experiences.
Behavioral
Experience
Leadership Principles
Easy
3

ROUND 3 (Round 2 — In-Person)

#1

Convert Linked List to Height-Balanced BST

Explain how to convert a sorted linked list into a height-balanced binary search tree (BST). Discuss your approach and the time complexity involved.
Data Structures
Linked List
Bst
Medium
#2

First Missing Positive Element

Given an unsorted integer array, find the first missing positive integer. Describe your approach to solving this problem efficiently.
Data Structures
Arrays
Missing Positive
Medium
#3

Discussion on Leadership Principles

Discuss another of Amazon's Leadership Principles and your personal experiences relevant to this principle.
Behavioral
Experience
Leadership Principles
Easy
4

ROUND 4 (Round 3 — In-Person, Professional Experience Deep Dive)

#1

Generative AI System Deep Dive

Conduct a deep dive into the Generative AI system you developed during your internship. Discuss prompt engineering, token optimization, architecture design, and the data structures used.
Architecture
System Design
Generative Ai
Hard
#2

Customer Order Query

Devise an efficient method to identify the customer who placed the highest number of KFC orders over the last three months. Discuss which data structures would best support this query.
Data Structures
Queries
Customer Data
Medium
#3

Token Limits Discussion

Explain the limitations surrounding token usage in NLP models, particularly in the context of your generative AI system.
Data Structures
Token Limits
Nlp
Medium
DsaSystem DesignLeadership PrinciplesGenerative AiData StructuresAmazon
A

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