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Lowe's Lead Software Engineer Interview Questions and Answers

Updated 18 May 2024

Lowe's Lead Software Engineer Interview Experiences

1 interview found

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Expain architecure of your current application
  • Ans. 

    Microservices architecture with containerization using Docker and Kubernetes

    • Utilizes microservices architecture for scalability and flexibility

    • Each microservice is containerized using Docker for easy deployment and management

    • Orchestrated using Kubernetes for automated scaling and load balancing

  • Answered by AI
Round 2 - Technical 

(1 Question)

  • Q1. Explain architectural of your current application of
  • Ans. 

    Our current application architecture follows a microservices design pattern with a combination of front-end and back-end services.

    • Utilizes Docker containers for easy deployment and scalability

    • Uses RESTful APIs for communication between services

    • Front-end built with React.js and back-end services in Node.js

    • Data storage handled by MongoDB for flexibility and scalability

  • Answered by AI
Round 3 - Technical 

(1 Question)

  • Q1. Expain architecture of your
  • Ans. 

    I have experience designing scalable and efficient software architectures for various projects.

    • Utilize microservices architecture for scalability and flexibility

    • Implement RESTful APIs for communication between components

    • Use containerization with Docker for easy deployment and management

    • Leverage cloud services like AWS or Azure for scalability and reliability

  • Answered by AI

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Interview Preparation Tips

General Tips: It's not a World Cup final and you're not Tendulkar. So relax, you don't have the burden of a nation's expectation on you. If you've managed to understand the fundamentals of algorithms, data structures, OS etc., cracking interviews shouldn't be hard. If you've not, then I guess you need at least a couple of months of intense preparation.
College Name: NIT SURATHKAL

I was interviewed before Dec 2020.

Round 1 - Coding Test 

(2 Questions)

Round duration - 60 Minutes
Round difficulty - Medium

There were 2 coding questions given in this round. One was related to Dynamic Programming and the second one was related to Recursion and Number Theory.

  • Q1. 

    House Robber Problem Statement

    Mr. X is a professional robber with a plan to rob houses arranged in a circular street. Each house has a certain amount of money hidden, separated by a security system that ...

  • Ans. 

    House Robber problem where a robber wants to maximize stolen money without robbing adjacent houses in a circular street.

    • Use dynamic programming to keep track of maximum stolen money at each house.

    • Consider two cases: either rob the current house and skip the next, or skip the current house.

    • Handle circular arrangement by considering the first and last houses separately.

    • Example: For arr[] = {2, 3, 2}, the output is 3. Rob...

  • Answered by AI
  • Q2. 

    Nth Fibonacci Number Problem Statement

    Calculate the Nth term in the Fibonacci sequence, where the sequence is defined as follows: F(n) = F(n-1) + F(n-2), with initial conditions F(1) = F(2) = 1.

    Input:

    ...
  • Ans. 

    Calculate the Nth Fibonacci number efficiently using dynamic programming.

    • Use dynamic programming to store and reuse previously calculated Fibonacci numbers.

    • Start with base cases F(1) and F(2) as 1, then calculate subsequent Fibonacci numbers.

    • Optimize the solution to avoid redundant calculations by storing intermediate results.

    • Time complexity can be reduced to O(N) using dynamic programming.

    • Example: For N = 5, the 5th F

  • Answered by AI
Round 2 - Face to Face 

(2 Questions)

Round duration - 50 Minutes
Round difficulty - Medium

Standard Data Structures and Algorithms round where I was given 2 questions to solve , one was from Linked List and the other was related to Priority Queue / Quick Sort .

  • Q1. 

    Intersection of Linked Lists Problem Statement

    You are provided with two linked lists, L1 and L2, both sorted in ascending order. Generate a new linked list containing elements that exist in both linked l...

  • Ans. 

    Given two sorted linked lists, find the intersection of elements in both lists and return a new sorted linked list.

    • Traverse both linked lists simultaneously to find common elements

    • Create a new linked list to store the intersecting elements

    • Ensure the final linked list is sorted in ascending order

    • Handle cases where there are no common elements between the lists

  • Answered by AI
  • Q2. 

    Kth Largest Element Problem Statement

    Ninja enjoys working with numbers, and Alice challenges him to find the Kth largest value from a given list of numbers.

    Input:

    The first line contains an integer 'T...
  • Ans. 

    Find the Kth largest element in a given list of numbers.

    • Sort the array in descending order.

    • Return the Kth element from the sorted array.

    • Handle multiple test cases efficiently.

  • Answered by AI
Round 3 - Face to Face 

(2 Questions)

Round duration - 50 Minutes
Round difficulty - Easy

This round majorly focused on Real life appications of Data Structures and also revolved around Object Oriented Programming Style of writing code .

  • Q1. 

    Data Structure with Insert, Delete, and GetRandom Operations

    Design a data structure that supports four operations: insert an element, remove an element, search for an element, and get a random element. E...

  • Ans. 

    Design a data structure with insert, delete, search, and getRandom operations, all in constant time.

    • Use a combination of HashMap and ArrayList to achieve constant time operations.

    • For insert operation, add the element to the ArrayList and store its index in the HashMap.

    • For delete operation, swap the element to be deleted with the last element in the ArrayList, update the index in the HashMap, and then remove the last el...

  • 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 keys based on their recent usage.

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

    • When capacity is reached, evict the least recently used item before inserting a new item.

    • Update the position of a key in the linked list whenever it is accesse

  • Answered by AI
Round 4 - Face to Face 

(2 Questions)

Round duration - 45 Minutes
Round difficulty - Medium

This round was inclined towards some Low Level Design Principles and some concepts from Java .

  • Q1. Design a Railway Reservation System.
  • Ans. 

    Design a Railway Reservation System

    • Create a database to store train schedules, seat availability, and passenger information

    • Implement a user interface for users to search for trains, book tickets, and view their reservations

    • Include features like seat selection, payment processing, and ticket confirmation

    • Handle scenarios like waitlisting, cancellations, and refunds

    • Ensure data security and privacy of passenger information

  • Answered by AI
  • Q2. Why is Java considered platform-independent while the Java Virtual Machine (JVM) is platform-dependent?
  • Ans. 

    Java is platform-independent because the code is compiled into bytecode that can run on any platform with a JVM, which is platform-dependent due to its reliance on the underlying hardware and operating system.

    • Java code is compiled into bytecode, which can run on any platform with a JVM.

    • JVM acts as an interpreter that translates bytecode into machine code specific to the underlying hardware and operating system.

    • The JVM ...

  • Answered by AI

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAWalmart interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 3 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 was interviewed before Dec 2020.

Round 1 - Face to Face 

(2 Questions)

Round duration - 90 Minutes
Round difficulty - Medium

This Round was DS and Algo round and it started with formal introduction, followed by 2 problems. We first dicussed the approach the time complexity and proper code covering all cases.

  • Q1. 

    Minimum Cost to Buy Oranges Problem Statement

    You are given a bag of capacity 'W' kg and a list 'cost' of costs for packets of oranges with different weights. Each element at the i-th position in the list...

  • Ans. 

    Find the minimum cost to buy a specific weight of oranges using given cost list.

    • Iterate through the cost list and find the minimum cost to achieve the desired weight

    • Keep track of the minimum cost while considering available packet weights

    • Return -1 if it is not possible to buy exactly W kg of oranges

  • Answered by AI
  • Q2. 

    K - Sum Path In A Binary Tree

    Given a binary tree where each node contains an integer value, and a value 'K', your task is to find all the paths in the binary tree such that the sum of the node values in ...

  • Ans. 

    Find all paths in a binary tree where the sum of node values equals a given value 'K'.

    • Traverse the binary tree using DFS and keep track of the current path and its sum.

    • At each node, check if the current sum equals 'K' and add the path to the result if true.

    • Continue traversal to the left and right child nodes recursively.

    • Return the list of paths that sum up to 'K'.

  • Answered by AI
Round 2 - Face to Face 

(2 Questions)

Round duration - 40 Minutes
Round difficulty - Medium

This round majorly focused on puzzles and some questions revolving around Computer Networks and the projects in my resume .

  • Q1. You have two wires of different lengths that take different times to burn. How can you measure a specific amount of time using these two wires?
  • Ans. 

    Use two wires of different lengths to measure a specific amount of time by burning them simultaneously.

    • Burn both wires at the same time, one wire will burn faster than the other.

    • Measure the time it takes for the faster burning wire to completely burn.

    • Calculate the specific amount of time by using the ratio of the lengths of the two wires.

  • Answered by AI
  • Q2. You have 3 ants located at the corners of a triangle. The challenge is to determine the movement pattern of the ants if they all start moving towards each other. What will be the outcome?
Round 3 - HR 

(2 Questions)

Round duration - 30 Minutes
Round difficulty - Easy

This is a cultural fitment testing round .HR was very frank and asked standard questions. Then we discussed about my role.

  • Q1. What do you know about the company?
  • Q2. Why should we hire you?

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAWalmart interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Puzzles, OOPSTime required to prepare for the interview - 3 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

Interview Questionnaire 

3 Questions

  • Q1. How to generate an unique id for a massive parallel system?
  • Ans. 

    An unique id for a massive parallel system can be generated using a combination of timestamp, machine id and a random number.

    • Use a timestamp to ensure uniqueness

    • Include a machine id to avoid collisions in a distributed system

    • Add a random number to further increase uniqueness

    • Consider using a UUID (Universally Unique Identifier) for simplicity

    • Ensure the id generation algorithm is thread-safe

  • Answered by AI
  • Q2. Design a parking lot system?
  • Ans. 

    A parking lot system that manages parking spots and vehicles.

    • Create a class for parking lot with attributes like total number of spots, available spots, etc.

    • Create a class for vehicle with attributes like license plate number, type, etc.

    • Implement methods for parking a vehicle, removing a vehicle, and checking availability of spots.

    • Use data structures like arrays and maps to store and retrieve information.

    • Consider imple

  • Answered by AI
  • Q3. Singleton ,Factory design pattern

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well for design questions as well

Skills evaluated in this interview

I applied via Naukri.com and was interviewed in Mar 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Virtual Interview - 3 rounds same day [DS & Algo, Java, Architecture/Product]

Interview Preparation Tips

Interview preparation tips for other job seekers - It was good. Focus on problem solving and speed to clear 1st Round. Strong Java fundamentals upto Java 8,9 is enough to clear 2nd Round. Basic Design and Product Architecture knowledge can help clear the final round.

Believe yourself and keep working !!

I was interviewed before Dec 2020.

Round 1 - Coding Test 

(2 Questions)

Round duration - 90 minutes
Round difficulty - Medium

This was a proctured online coding round where we had 2 questions to solve under 90 minutes . The questions were of easy to medium level I would say with some lenghty implementations .

  • Q1. 

    Minimum Numbers Required Problem Statement

    Given an array 'ARR' consisting of N integers, along with two integers, 'SUM' and 'MAXVAL', you need to determine the minimum number of integers to be added to t...

  • Ans. 

    Determine the minimum number of integers to be added to an array to make its sum equal to a given value.

    • Iterate through the array and calculate the current sum.

    • Determine the difference between the target sum and the current sum.

    • Add the minimum number of integers within the range of -MAXVAL to MAXVAL to reach the target sum.

  • Answered by AI
  • Q2. 

    Maximum Sum Subsequence Problem Statement

    Given an array of integers NUMS consisting of N integers and an integer K, determine the maximum sum of an increasing subsequence with exactly K elements.

    Exampl...

  • Ans. 

    Find the maximum sum of an increasing subsequence with exactly K elements in an array of integers.

    • Iterate through the array and maintain a dynamic programming table to store the maximum sum of increasing subsequences ending at each index.

    • For each element, check all previous elements to find the increasing subsequence with maximum sum ending at that element.

    • Update the dynamic programming table with the maximum sum found...

  • Answered by AI
Round 2 - Face to Face 

(2 Questions)

Round duration - 50 Minutes
Round difficulty - Medium

Standard Data Structures and Algorithms round . One has to be fairly comfortable in solving algorithmic problems to
pass this round with ease.

  • Q1. 

    Check Whether Binary Tree Is Complete

    You have been given a binary tree and your task is to determine if it is a Complete Binary Tree or not.

    A Complete Binary Tree is defined as a binary tree where ever...

  • Ans. 

    Check if a binary tree is a Complete Binary Tree or not based on given criteria.

    • Traverse the binary tree level by level and check if all levels are completely filled except the last one.

    • Ensure all nodes at the last level are positioned at the leftmost side.

    • Use level order traversal to check for completeness of the binary tree.

    • Example: For input 1 2 3 4 -1 5 6 -1 7 -1 -1 -1 -1 -1 -1, the output should be 1.

  • Answered by AI
  • Q2. 

    Consecutive Elements

    Given an array arr of N non-negative integers, determine whether the array consists of consecutive numbers. Return true if they do, and false otherwise.

    Input:

    The first line of inp...
  • Ans. 

    Check if an array of integers consists of consecutive numbers.

    • Iterate through the array and check if the absolute difference between consecutive elements is 1.

    • Sort the array and check if the elements are consecutive.

    • Use a set to store the elements and check if the size of the set is equal to the length of the array.

  • Answered by AI
Round 3 - Face to Face 

(2 Questions)

Round duration - 40 Minutes
Round difficulty - Medium

This round majorly focused on my projects and some standard questions revolving around Operating Systems and DBMS.

  • Q1. How can you print numbers from 1 to 100 using more than two threads in an optimized approach?
  • Ans. 

    Use multiple threads to print numbers from 1 to 100 in an optimized approach.

    • Divide the range of numbers (1-100) among the threads to avoid duplication.

    • Use synchronization mechanisms like mutex or semaphore to ensure proper order of printing.

    • Consider using a shared data structure like a queue to coordinate the threads.

    • Implement a mechanism to signal the threads when to start and stop printing.

  • Answered by AI
  • Q2. What are the advantages of using views in a database management system?
  • Ans. 

    Views in a database management system provide data security, simplify complex queries, and improve performance.

    • Enhanced security by restricting access to certain columns or rows

    • Simplify complex queries by pre-defining joins and filters

    • Reduce redundancy by storing commonly used queries as views

    • Improve performance by storing pre-processed data in views

    • Allow for data abstraction, making it easier to work with complex data

  • Answered by AI
Round 4 - HR 

(2 Questions)

Round duration - 30 Minutes
Round difficulty - Easy

This is a cultural fitment testing round .HR was very frank and asked standard questions. Then we discussed about my role.

  • Q1. What do you know about the company?
  • Q2. Why should we hire you?

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAWalmart 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

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Oct 2024. There were 3 interview rounds.

Round 1 - Coding Test 

It was a combination of mcq and coding questions
mcq: aptitude + c++ + sql question, nothing really tough
Coding question: 3 leetcode question, medium level, of stack, binary search and graph traversal

Round 2 - One-on-one 

(5 Questions)

  • Q1. Question regarding project
  • Q2. SQL basic to moderate question
  • Q3. C++ coding question on strings recursion callback in c, oops medium level question, finding error in code
  • Q4. Puzzles Q1-> cake cutting ( 3 cuts, 8 slices) Q2 ->9 bottles, 8 same weight bottles, 1 heavy, 2 tries using a balance
  • Q5. OS question difference bw multi-processing and multi-programming how would u reduce number of page faults. etc
Round 3 - One-on-one 

(3 Questions)

  • Q1. Once again project explanation
  • Q2. Basic to high level oops question:( C++) i was asked to write some class and in that these questions were asked 1: different types of access modifiers, but the question was asked indirectly. like why did...
  • Q3. HR questions, since it was a semi technical cum hr round,

Interview Preparation Tips

Interview preparation tips for other job seekers - stay clam and respond actively and please fill the company recruitment form properly, question was asked directly form that form. Also properly attend the pre placement talks, it would be beneficial as u can directly answer company related questions without any hesitation.
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Questions on basis of elastic search
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-

I applied via Campus Placement

Round 1 - Coding Test 

2 coding questions and a few MCQs

Round 2 - Technical 

(1 Question)

  • Q1. Asked to explain and optimise my solution from coding test
Round 3 - Technical 

(1 Question)

  • Q1. Behavioral round. Asked about resume.
Round 4 - HR 

(1 Question)

  • Q1. General HR round and trying to find if you're a right fit for the company
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Lowe's Interview FAQs

How many rounds are there in Lowe's Lead Software Engineer interview?
Lowe's interview process usually has 3 rounds. The most common rounds in the Lowe's interview process are Technical.
How to prepare for Lowe's Lead Software Engineer 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 Lowe's. The most common topics and skills that interviewers at Lowe's expect are Java, Continuous Integration, Enterprise Software, Microservices and Javascript.
What are the top questions asked in Lowe's Lead Software Engineer interview?

Some of the top questions asked at the Lowe's Lead Software Engineer interview -

  1. Explain architectural of your current application...read more
  2. Expain architecure of your current applicat...read more
  3. Expain architecture of y...read more

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Lowe's Lead Software Engineer Salary
based on 150 salaries
₹18 L/yr - ₹60 L/yr
72% more than the average Lead Software Engineer Salary in India
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Lowe's Lead Software Engineer Reviews and Ratings

based on 13 reviews

4.3/5

Rating in categories

3.7

Skill development

4.0

Work-life balance

4.4

Salary

3.6

Job security

4.2

Company culture

3.1

Promotions

3.6

Work satisfaction

Explore 13 Reviews and Ratings
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