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Amazon Software Development Engineer 1 Interview Questions, Process, and Tips

Updated 5 Jul 2024

Top Amazon Software Development Engineer 1 Interview Questions and Answers

View all 6 questions

Amazon Software Development Engineer 1 Interview Experiences

8 interviews found

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Double-check your resume for any spelling mistakes. The recruiter may consider spelling mistakes as careless behavior or poor communication skills.
View all tips
Round 2 - Coding Test 

It was a online 2 hour coding test tand had 3 questions to solve
Medium level problem of dsa

Round 3 - Technical 

(1 Question)

  • Q1. Question on graph and tree were there. Medium level dsa problem on leetcode
Interview experience
4
Good
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Company Website and was interviewed before Feb 2023. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. 3 Similar to leetcode problems: Difficulty level hard
  • Q2. Explain the code that you wrote in detail.
  • Ans. 

    The code I wrote is a function that sorts an array of integers in ascending order using bubble sort algorithm.

    • The code starts by iterating through the array and comparing adjacent elements, swapping them if they are in the wrong order.

    • This process is repeated until no more swaps are needed, indicating that the array is sorted.

    • The time complexity of bubble sort is O(n^2) in the worst case scenario.

    • Example: int[] arr = {

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Practice leetcode and general SDE questions.
What is heap ?
What is knapsack algorithm?

Skills evaluated in this interview

Software Development Engineer 1 Interview Questions Asked at Other Companies

asked in Amazon
Q1. 4. Design a system for making table reservations at a restaurant.
asked in Byteridge
Q2. Do you have hands-on experience developing a simple to-do or task ... read more
Q3. Can you provide a comprehensive overview of the technologies you ... read more
asked in Tata 1mg
Q4. Find binary tree if preorder and postorder is given.
Q5. how you create a spring boot application?
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Dec 2021. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - Coding Test 

There is two question :
One from Sliding window : medium
Another from Graph same as leetcode island problem : medium
Solved both within time limit

Round 3 - Technical 

(2 Questions)

  • Q1. First Question is on binary tree finding ancestor
  • Q2. Second one is DP finding max sum
Round 4 - HR 

(1 Question)

  • Q1. General Question: Introduction, some verbal question about project

Interview Preparation Tips

Interview preparation tips for other job seekers - Just do medium level question and try to brushing up each topic before interview or OA
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Oct 2022. There were 6 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Properly align and format text in your resume. A recruiter will have to spend more time reading poorly aligned text, leading to high chances of rejection.
View all tips
Round 2 - HR 

(1 Question)

  • Q1. Asked about Past experiences and relevancy to the role.
Round 3 - Technical 

(1 Question)

  • Q1. It was a LC-Medium question regarding a graph question (DFS used) and then grilled into it.
Round 4 - Technical 

(1 Question)

  • Q1. Also a LC-Medium questions. Solved by optimally utilizing Data Structures.
Round 5 - Technical 

(1 Question)

  • Q1. LC-hard regarding a problem that involved balanced trees.
Round 6 - Technical 

(1 Question)

  • Q1. LC-Hard regarding object oriented approch and system design.

Amazon interview questions for designations

 Software Development Engineer

 (35)

 Software Engineer Level 1

 (1)

 Software Development Engineer II

 (30)

 Software Development Engineer Test

 (1)

 Senior Software Development Engineer

 (1)

 Software Development Manager

 (4)

 Software Developer 1

 (1)

 Senior Software Development Manager

 (1)

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Jul 2023. There was 1 interview round.

Round 1 - Coding Test 

Duration was 1 hour with Graph problem medium level.

Get interview-ready with Top Amazon Interview Questions

I applied via LinkedIn and was interviewed in Aug 2021. There were 5 interview rounds.

Round 1 - Coding Test 

Platform - HackerRank
Duration - 2 hrs
Question Types - 2 coding question and some behavioural question
first question was related to hashing concept and 2nd was related to BFS concept and 1 more thing that you have to also explain your approach and time complexity of your code that you have written.

Round 2 - One-on-one 

(1 Question)

  • Q1. Round-2 :- the interview was taken by a SDE-2 and 2 questions were asked 1 was binary search question and 2nd one was on priority queue concept. Time :- 1Hr
Round 3 - One-on-one 

(1 Question)

  • Q1. Round 3:- Same as 2nd round 2 questions 1 was from two pointer concept and 2nd was a tricky sorting question.
Round 4 - Technical 

(1 Question)

  • Q1. Round-4 :- 2 questions were asked 1 was related to trie data structure and 2nd was related to matrix manipulation.
Round 5 - Technical 

(1 Question)

  • Q1. Round-5 :- 1 coding question and it was leetcode hard problem related to variable size sliding window concept and some behavioural question related to my project that I have done in my College.

Interview Preparation Tips

Interview preparation tips for other job seekers - Just be clear with your basics as I remember that in my 2nd round when I used Min heap using STL library the interviewer told me to implement your own Min heap. So, just be clear with concepts and keep practising on various platforms.

Software Development Engineer 1 Jobs at Amazon

View all

I applied via Referral and was interviewed before Jun 2021. There were 5 interview rounds.

Round 1 - Coding Test 

Medium hard questions with mcq.

Round 2 - Technical 

(1 Question)

  • Q1. MAX intersections in a range of time.
  • Ans. 

    Find maximum number of intersections in a given time range.

    • Consider all the intervals and their start and end times.

    • Sort the intervals based on their start times.

    • Use a priority queue to keep track of the intervals that are currently active.

    • Update the maximum number of intersections whenever a new interval is added or removed from the priority queue.

  • Answered by AI
Round 3 - One-on-one 

(1 Question)

  • Q1. Median in stream of Numbers.
  • Ans. 

    Finding the median of a stream of numbers.

    • Maintain two heaps, one for smaller half and one for larger half of the stream.

    • If the heaps are of equal size, median is the average of the top elements of both heaps.

    • If the heaps are of different sizes, median is the top element of the larger heap.

    • Add new elements to the appropriate heap and balance the heaps accordingly.

  • Answered by AI
Round 4 - One-on-one 

(1 Question)

  • Q1. Computer science basics in OOP, OS, Networks.
Round 5 - One-on-one 

(1 Question)

  • Q1. Design LRU cache, project discussion.

Interview Preparation Tips

Interview preparation tips for other job seekers - The main focus is on coding and dsa. Need regular practice before attending as the interviews are timed. Code quality, and identifying edge cases are needed on the f2f intervies.

Skills evaluated in this interview

I applied via Referral and was interviewed in Jun 2018. There were 6 interview rounds.

Interview Questionnaire 

7 Questions

  • Q1. The next round was a technical phone screen interview. I was asked one Leetcode Easy question and one 'situation' question. Such questions should be answered in the STAR (Situation, Task, Action, Result) f...
  • Q2. Remove duplicates from a list
  • Ans. 

    Remove duplicates from a list

    • Create a new empty list

    • Loop through the original list

    • If an element is not in the new list, add it

    • Return the new list

  • Answered by AI
  • Q3. After clearing the technical phone screen, there was an onsite interview consisting of 4 rounds. One of these rounds will be conducted by a 'Bar Raiser' (entitled to ensure every hire is 50% better than c...
  • Q4. 1. Check for circular dependencies of packages, i.e. if A depends on B and B depends on A, then both of them cannot be executed. Such packages cannot co-exist. Details are given in the form of a graph.
  • Q5. 2. Number of islands - Leetcode
  • Ans. 

    Count the number of islands in a 2D grid of 1s and 0s.

    • An island is a group of connected 1s (horizontally or vertically).

    • Use DFS or BFS to traverse the grid and mark visited cells.

    • Count the number of times you start a traversal from an unvisited 1.

  • Answered by AI
  • Q6. 3. Caesar's Cipher
  • Q7. 4. Design a system for making table reservations at a restaurant.
  • Ans. 

    Design a system for making table reservations at a restaurant.

    • Create a user-friendly interface for customers to make reservations

    • Allow customers to select date, time, and party size

    • Provide real-time updates on table availability

    • Integrate with the restaurant's seating chart and reservation system

    • Send confirmation emails or texts to customers

    • Allow customers to modify or cancel reservations

    • Provide analytics for the restau

  • Answered by AI

Interview Preparation Tips

Round: Resume Shortlist
Experience: I had an employee referral for Amazon. It definitely helps the shortlisting process.

Round: Test
Experience: After the resume shortlist, they sent a coding challenge which can be solved in the language of your choice. It consisted of two technical questions, which were fairly simple. One of them was 'Most Common Word' from Leetcode.
Followed by that were around 100 non-technical personality questions (multiple choice). Amazon places its Principles highly and these questions should be answered seriously. They twist a question and ask it multiple times to check for consistency. There are no correct answers and no perfect candidate. So do not worry about being wrong.


General Tips: Most of the questions are intentionally ambiguous. Ask clarifying questions to understand the question, before jumping to the solution.
Also, do not forget to focus on the principles. For every principle, think of a similar situation you have faced in your life. Be ready to answer that in the STAR format. Stay calm and be confident.
Skills: Communication, Problem Solving, Leadership, Time Management
Duration: 1-4 weeks

Skills evaluated in this interview

Interview questions from similar companies

I appeared for an interview before Dec 2020.

Round 1 - Coding Test 

(2 Questions)

Round duration - 90 minutes
Round difficulty - Hard

This was an online coding round where we were supposed to solve 2 questions under 90 minutes . Both the questions in my set were related to Graphs and were quite tricky and heavy to implement.

  • Q1. 

    Path Counting in Directed Graph

    Given a directed graph with a specified number of vertices V and edges E, your task is to calculate the total number of distinct paths from a given source node S to all ot...

  • Ans. 

    Calculate the total number of distinct paths from a given source node to all other nodes in a directed graph.

    • Use dynamic programming to keep track of the number of paths from the source node to each node in the graph.

    • Consider using modular arithmetic to handle large numbers and prevent overflow.

    • Start by initializing the number of paths from the source node to itself as 1.

    • Iterate through the edges of the graph and updat...

  • Answered by AI
  • Q2. 

    Course Schedule II Problem Statement

    You are provided with a number of courses 'N', some of which have prerequisites. There is a matrix named 'PREREQUISITES' of size 'M' x 2. This matrix indicates that fo...

  • Ans. 

    Given courses with prerequisites, determine a valid order to complete all courses.

    • Use topological sorting to find a valid order of courses.

    • Create a graph with courses as nodes and prerequisites as edges.

    • Start with courses that have no prerequisites and remove them from the graph.

    • Continue this process until all courses are taken or there are no valid courses left.

    • If there is a cycle in the graph, it is impossible to com

  • Answered by AI
Round 2 - Face to Face 

(2 Questions)

Round duration - 60 Minutes
Round difficulty - Medium

This was a Data Structures and Algorithms round with some standard questions . I was expected to come up with an
efficient approach and code it as well .

  • Q1. 

    Merge Intervals Problem Statement

    You are provided with 'N' intervals, each containing two integers denoting the start time and end time of the interval.

    Your task is to merge all overlapping intervals a...

  • Ans. 

    Merge overlapping intervals and return sorted list of merged intervals.

    • Sort the intervals based on start times.

    • Iterate through intervals and merge overlapping intervals.

    • Return the merged intervals in sorted order.

  • Answered by AI
  • Q2. 

    Longest Route Problem Statement

    Given a 2-dimensional binary matrix called Mat of size N x M that consists solely of 0s and 1s, find the length of the longest path from a specified source cell to a destina...

  • Ans. 

    Find the length of the longest path from a source cell to a destination cell in a binary matrix.

    • Use depth-first search (DFS) to explore all possible paths from source to destination.

    • Keep track of visited cells to avoid revisiting them.

    • Return the length of the longest path found, or -1 if no path exists.

  • Answered by AI
Round 3 - Face to Face 

(2 Questions)

Round duration - 50 Minutes
Round difficulty - Medium

This was also a DSA round where I was asked to code only one of the questions but I eventually ended up coding both
as I had some spare time and explained my approches very smoothly to the interviewer . This round went preety well .

  • Q1. 

    Longest Increasing Subsequence Problem Statement

    Given an array of integers with 'N' elements, determine the length of the longest subsequence where each element is greater than the previous element. This...

  • Ans. 

    Find the length of the longest strictly increasing subsequence in an array of integers.

    • Use dynamic programming to solve this problem efficiently.

    • Initialize an array to store the length of the longest increasing subsequence ending at each index.

    • Iterate through the array and update the length of the longest increasing subsequence for each element.

    • Return the maximum value in the array as the result.

  • Answered by AI
  • Q2. 

    Search In Rotated Sorted Array Problem Statement

    Given a rotated sorted array ARR of size 'N' and an integer 'K', determine the index at which 'K' is present in the array.

    Note:
    1. If 'K' is not present...
  • Ans. 

    Given a rotated sorted array, find the index of a given integer 'K'.

    • Use binary search to find the pivot point where the array is rotated.

    • Then perform binary search on the appropriate half of the array to find 'K'.

    • Handle cases where 'K' is not present in the array by returning -1.

  • Answered by AI
Round 4 - Face to Face 

(2 Questions)

Round duration - 50 Minutes
Round difficulty - Medium

This was also a DSA round with 2 questions of Medium to Hard difficulty . I was expected to follow some clean code and OOPS principles to write the code in this round .

  • Q1. 

    Rank from Stream Problem Statement

    Given an array of integers ARR and an integer K, determine the rank of the element ARR[K].

    Explanation:

    The rank of any element in ARR is defined as the number of elem...

  • Ans. 

    Given an array and an index, find the number of elements smaller than the element at that index appearing before it in the array.

    • Iterate through the array up to index K and count the number of elements smaller than ARR[K].

    • Return the count as the rank of ARR[K].

    • Handle edge cases like empty array or invalid index K.

  • Answered by AI
  • Q2. 

    LRU Cache Design Question

    Design a data structure for a Least Recently Used (LRU) cache that supports the following operations:

    1. get(key) - Return the value of the key if it exists in the cache; otherw...

  • Ans. 

    Design a Least Recently Used (LRU) cache data structure that supports get and put operations with capacity constraint.

    • Implement a doubly linked list to maintain the order of recently used keys.

    • Use a hashmap to store key-value pairs for quick access.

    • Update the order of keys in the linked list on get and put operations.

    • Evict the least recently used key when the cache reaches its capacity.

  • Answered by AI

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAFacebook interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 4 MonthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

I applied via Naukri.com and was interviewed before Nov 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Basic Questions about core concept.

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on core concepts and basic programs.

Amazon Interview FAQs

How many rounds are there in Amazon Software Development Engineer 1 interview?
Amazon interview process usually has 3-4 rounds. The most common rounds in the Amazon interview process are Technical, One-on-one Round and Coding Test.
How to prepare for Amazon Software Development Engineer 1 interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Amazon. The most common topics and skills that interviewers at Amazon expect are Clinical SAS Programming, Architectural Design, Machine Learning, Team Building and Agile Coaching.
What are the top questions asked in Amazon Software Development Engineer 1 interview?

Some of the top questions asked at the Amazon Software Development Engineer 1 interview -

  1. 4. Design a system for making table reservations at a restaura...read more
  2. 2. Number of islands - Leetc...read more
  3. Remove duplicates from a l...read more

Tell us how to improve this page.

Amazon Software Development Engineer 1 Interview Process

based on 6 interviews

2 Interview rounds

  • Coding Test Round
  • Technical Round
View more

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Amazon Software Development Engineer 1 Salary
based on 220 salaries
₹12.9 L/yr - ₹41 L/yr
64% more than the average Software Development Engineer 1 Salary in India
View more details

Amazon Software Development Engineer 1 Reviews and Ratings

based on 41 reviews

2.8/5

Rating in categories

3.5

Skill development

2.1

Work-life balance

4.2

Salary

2.2

Job security

2.5

Company culture

3.1

Promotions

2.6

Work satisfaction

Explore 41 Reviews and Ratings
Software Development Engineer I, Last Mile Delivery Prdct&Tech

Bangalore / Bengaluru

0-4 Yrs

Not Disclosed

Software Development Engineer - III

Bangalore / Bengaluru

5-10 Yrs

Not Disclosed

Software Development Engineer - II, Amazon

Bangalore / Bengaluru

2-9 Yrs

Not Disclosed

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