Lowe's Software Engineer Interview Experience
Software Engineer
Summary
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The Lowe's interview process consisted of three rounds, encompassing a mix of technical and managerial questions. The first round focused on Java concepts, OOP principles, and stream API applications, while the second round delved into practical queries related to Spring Boot. The final round involved discussions on technology choices, project management, and personal achievements, presenting a rigorous and thorough assessment of candidates. Overall, candidates should prepare for a challenging yet insightful interview experience at Lowe's.
1
#1Scenario-Based Questions on OOP
Medium
java
oop
inheritance
Explain the concepts of polymorphism, inheritance, the static keyword, as well as the equals and hashcode methods in Java. Provide examples where applicable.
#1
Scenario-Based Questions on OOP
Explain the concepts of polymorphism, inheritance, the static keyword, as well as the equals and hashcode methods in Java. Provide examples where applicable.
java
oop
inheritance
Medium
#2Concurrent Modification Exception
Medium
java
concurrency
exception-handling
What is a Concurrent Modification Exception, and in what scenarios does it occur? Explain the concepts of fail-fast and fail-safe iterators.
#2
Concurrent Modification Exception
What is a Concurrent Modification Exception, and in what scenarios does it occur? Explain the concepts of fail-fast and fail-safe iterators.
java
concurrency
exception-handling
Medium
#3Using Try Without Catch
Easy
java
exception-handling
Can you use a try block without an associated catch block in Java? If yes, under what circumstances?
#3
Using Try Without Catch
Can you use a try block without an associated catch block in Java? If yes, under what circumstances?
java
exception-handling
Easy
#4Java 8 Features
Medium
java
java-8
features
What are the key features introduced in Java 8? Briefly describe each feature and its significance.
#4
Java 8 Features
What are the key features introduced in Java 8? Briefly describe each feature and its significance.
java
java-8
features
Medium
#5Finding Second Highest Employee Salary
Medium
java
streams
salary-calculation
How would you find the second highest employee salary using Java Streams? Provide a code snippet to illustrate your solution.
#5
Finding Second Highest Employee Salary
How would you find the second highest employee salary using Java Streams? Provide a code snippet to illustrate your solution.
java
streams
salary-calculation
Medium
#6Finding Duplicate Elements Using Streams
Medium
java
streams
duplicates
Write a function to find duplicate elements in a list using Java Streams. Include your thought process and a code example.
#6
Finding Duplicate Elements Using Streams
Write a function to find duplicate elements in a list using Java Streams. Include your thought process and a code example.
java
streams
duplicates
Medium
#7Validating Parentheses
Medium
java
algorithms
parentheses-validation
Design an algorithm to validate a string of parentheses. Provide your reasoning and a code example.
#7
Validating Parentheses
Design an algorithm to validate a string of parentheses. Provide your reasoning and a code example.
java
algorithms
parentheses-validation
Medium
#8Multithreading Question
Medium
java
multithreading
Describe an important multithreading concept or scenario you have encountered in your experience. (Note: Do not remember the exact question).
#8
Multithreading Question
Describe an important multithreading concept or scenario you have encountered in your experience. (Note: Do not remember the exact question).
java
multithreading
Medium
#9Find Third Highest Employee Salary Using SQL
Medium
sql
employees
salary-calculation
Write a SQL query to find the third highest employee salary from a database. Assume that the employee table has a column for salaries.
#9
Find Third Highest Employee Salary Using SQL
Write a SQL query to find the third highest employee salary from a database. Assume that the employee table has a column for salaries.
sql
employees
salary-calculation
Medium
#10Service Registry and API Gateway Definitions
Medium
microservices
architecture
service-registry
Define the concepts of Service Registry, Service Discovery, and API Gateway in the context of microservices architecture. Discuss their roles.
#10
Service Registry and API Gateway Definitions
Define the concepts of Service Registry, Service Discovery, and API Gateway in the context of microservices architecture. Discuss their roles.
microservices
architecture
service-registry
Medium
2
#1Spring Boot Annotations
Medium
spring-boot
annotations
java
Discuss the usage of various Spring Boot annotations such as @RequestMapping, @PathVariable, @RestController, and @Controller. How do they function in a Spring Boot application?
#1
Spring Boot Annotations
Discuss the usage of various Spring Boot annotations such as @RequestMapping, @PathVariable, @RestController, and @Controller. How do they function in a Spring Boot application?
spring-boot
annotations
java
Medium
#2Usage of @Component and @Bean
Medium
spring-boot
annotations
dependency-injection
Explain the differences and usages of @Component and @Bean in Spring framework. Provide examples of when to use each.
#2
Usage of @Component and @Bean
Explain the differences and usages of @Component and @Bean in Spring framework. Provide examples of when to use each.
spring-boot
annotations
dependency-injection
Medium
#3Enabling HTTPS in Spring Boot
Medium
spring-boot
https
tomcat
How can you configure a standalone Spring Boot application to use HTTPS with an embedded Tomcat server? Elaborate on the necessary steps and configurations.
#3
Enabling HTTPS in Spring Boot
How can you configure a standalone Spring Boot application to use HTTPS with an embedded Tomcat server? Elaborate on the necessary steps and configurations.
spring-boot
https
tomcat
Medium
#4Service Layer Logic
Medium
spring-boot
service-layer
java
Given a specific scenario, write the service layer logic required for that scenario in a Spring Boot application. Explain your design choices.
#4
Service Layer Logic
Given a specific scenario, write the service layer logic required for that scenario in a Spring Boot application. Explain your design choices.
spring-boot
service-layer
java
Medium
#5OAuth 2.0 and JWT Tokens
Medium
oauth
jwt
security
What is OAuth 2.0, and how do JWT tokens operate within its framework? Explain their security benefits.
#5
OAuth 2.0 and JWT Tokens
What is OAuth 2.0, and how do JWT tokens operate within its framework? Explain their security benefits.
oauth
jwt
security
Medium
#6Finding Repetitive Elements with Streams
Medium
java
streams
duplicates
Using Java Stream API, write a method to identify repetitive elements within a list. Provide a rationale for your approach.
#6
Finding Repetitive Elements with Streams
Using Java Stream API, write a method to identify repetitive elements within a list. Provide a rationale for your approach.
java
streams
duplicates
Medium
#7Overriding Equals and HashCode
Medium
java
overriding
object-equality
Why is it important to override the equals and hashCode methods in Java? Discuss scenarios where not doing so may lead to issues.
#7
Overriding Equals and HashCode
Why is it important to override the equals and hashCode methods in Java? Discuss scenarios where not doing so may lead to issues.
java
overriding
object-equality
Medium
3
#1SQL vs NoSQL
Medium
sql
nosql
database
What are the differences between SQL and NoSQL databases? Why was NoSQL chosen for your current company's tech stack?
#1
SQL vs NoSQL
What are the differences between SQL and NoSQL databases? Why was NoSQL chosen for your current company's tech stack?
sql
nosql
database
Medium
#2Consistent Hashing
Medium
hashing
distributed-systems
Explain the concept of consistent hashing. How is it implemented, and what are its advantages?
#2
Consistent Hashing
Explain the concept of consistent hashing. How is it implemented, and what are its advantages?
hashing
distributed-systems
Medium
#3CAP Theorem
Medium
distributed-systems
cap-theorem
What is the CAP theorem? Discuss its implications in the design of distributed systems.
#3
CAP Theorem
What is the CAP theorem? Discuss its implications in the design of distributed systems.
distributed-systems
cap-theorem
Medium
#4Technology Stack Discussion
Medium
tech-stack
project-management
Discuss your current company project. What influenced the choice of your technology stack, and what alternatives were considered?
#4
Technology Stack Discussion
Discuss your current company project. What influenced the choice of your technology stack, and what alternatives were considered?
tech-stack
project-management
Medium
#5Tools Discussion
Medium
tools
devops
What tools have you used such as SonarQube, Maven, Bitbucket, etc.? Discuss their roles and contributions to your current projects.
#5
Tools Discussion
What tools have you used such as SonarQube, Maven, Bitbucket, etc.? Discuss their roles and contributions to your current projects.
tools
devops
Medium
#6Docker and Deployment Processes
Medium
docker
deployment
devops
Discuss your experience with Docker and the deployment processes involved with it. What best practices do you follow?
#6
Docker and Deployment Processes
Discuss your experience with Docker and the deployment processes involved with it. What best practices do you follow?
docker
deployment
devops
Medium
#7Spring Security and Certificates
Medium
spring-security
certificates
What is Spring Security, and how do you manage certificate trust in Spring applications?
#7
Spring Security and Certificates
What is Spring Security, and how do you manage certificate trust in Spring applications?
spring-security
certificates
Medium
#890-Day Plan at Lowe's
Medium
onboarding
strategy
How do you envision your first 90 days at Lowe's? What goals do you plan to achieve and how will you integrate into the team?
#8
90-Day Plan at Lowe's
How do you envision your first 90 days at Lowe's? What goals do you plan to achieve and how will you integrate into the team?
onboarding
strategy
Medium
#9Personal Achievements
Medium
achievements
career
What are some personal achievements or work accomplishments you are most proud of in your current company?
#9
Personal Achievements
What are some personal achievements or work accomplishments you are most proud of in your current company?
achievements
career
Medium
A
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