DXC Technology

American multinational B2B IT services provider.

4 Rounds ~21 Days Medium

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The Interview Loop

Recruiter Screen (30 min)

Standard fit check, behavioral questions, and resume overview.

Technical Loop (3-4 Rounds)

Deep dive into domain knowledge, coding, and system design.

Interview Question Bank

All Roles Backend Engineer 35 Cloud Engineer 35 Data Engineer 35 Data Scientist 35 DevOps Engineer 35 Frontend Engineer 35 Full Stack Engineer 35 Machine Learning Engineer 35 Product Manager 35 Software Engineer 35

All Topics Algorithms 8 System Design 5 SQL 3 Frameworks 3 Core Java 2 Architecture 1 Teamwork 1 Web Services 1

Software Engineer • Behavioral • medium

Working in IT services means managing client expectations. Describe a time when a client requested a feature that was technically unfeasible or out of scope. How did you handle it?

#Communication #Negotiation #Stakeholder Management

Practice

Software Engineer • Behavioral • medium

At DXC, you will often inherit legacy codebases from our enterprise clients. Tell me about a time you had to troubleshoot and refactor a critical bug in undocumented legacy code.

#Legacy Code #Debugging #Adaptability

Practice

Software Engineer • Behavioral • easy

Describe a situation where you had to quickly learn a new technology or framework to complete a project on time.

#Learning #Time Management #Agile

Practice

Software Engineer • Behavioral • medium

How do you prioritize your tasks when dealing with multiple urgent requests from different client stakeholders?

#Prioritization #Communication #Stress Management

Practice

Software Engineer • Behavioral • medium

Tell me about a time you disagreed with a senior engineer or architect's design decision. How did you approach the situation?

#Conflict Resolution #Communication #Leadership

Practice

Software Engineer • Behavioral • easy

Explain your experience with Agile and Scrum methodologies. What ceremonies do you find most valuable and why?

#Agile #Scrum #Process

Practice

Software Engineer • Behavioral • easy

How do you ensure code quality and security in your deliverables before handing them over to a client?

#Testing #Code Review #Security

Practice

Software Engineer • Coding • easy

Write a function to find the first non-repeating character in a string and return its index. If it doesn't exist, return -1.

#Strings #Hash Tables

Practice

Software Engineer • Coding • medium

Given an array of intervals where intervals[i] = [starti, endi], merge all overlapping intervals, and return an array of the non-overlapping intervals that cover all the intervals in the input.

#Arrays #Sorting

Practice

Software Engineer • Coding • easy

Write a SQL query to find the second highest salary from an Employee table. If there is no second highest salary, return null.

#Databases #Aggregation

Practice

Software Engineer • Coding • easy

Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.

#Stacks #Strings

Practice

Software Engineer • Coding • medium

Find the longest substring without repeating characters in a given string.

#Sliding Window #Hash Tables #Strings

Practice

Software Engineer • Coding • easy

Write a program to detect if a cycle exists in a linked list.

#Linked Lists #Two Pointers

Practice

Software Engineer • Coding • medium

Given an array of strings, group the anagrams together. You can return the answer in any order.

#Hash Tables #Strings #Sorting

Practice

Software Engineer • Coding • medium

Write a SQL query to find all employees who earn more than their managers.

#Databases #Joins

Practice

Software Engineer • Coding • easy

Implement a binary search algorithm to find a target value in a sorted array.

#Binary Search #Arrays

Practice

Software Engineer • Coding • medium

Given the root of a binary tree, return the level order traversal of its nodes' values. (i.e., from left to right, level by level).

#Trees #Breadth-First Search #Queues

Practice

Software Engineer • System Design • hard

DXC frequently helps clients modernize legacy systems. Walk me through how you would design a strategy to migrate an on-premise monolithic application to a cloud-based microservices architecture.

#Microservices #Cloud Migration #Architecture

Practice

Software Engineer • System Design • medium

Design a highly available URL Shortener service (like bit.ly).

#Scalability #Hashing #Databases

Practice

Software Engineer • System Design • medium

How would you design a distributed logging and monitoring system for an enterprise application consisting of 50+ microservices?

#Observability #Microservices #Infrastructure

Practice

Software Engineer • System Design • hard

Design an inventory management system for a large e-commerce client. How do you handle concurrent purchases of the last item in stock?

#Concurrency #Databases #E-commerce

Practice

Software Engineer • System Design • medium

Explain how you would implement caching in a high-traffic enterprise application. What caching strategies would you use?

#Caching #Performance #Redis

Practice

Software Engineer • Technical • medium

Explain the internal working of a HashMap in Java. What happens when a collision occurs?

#Data Structures #Hashing #Java

Practice

Software Engineer • Technical • easy

What are the key features introduced in Java 8? Can you provide an example of how you would use Streams to filter a list of objects?

#Java 8 #Streams #Lambdas

Practice

Software Engineer • Technical • medium

How does Spring Boot auto-configuration work? How can you disable a specific auto-configuration class?

#Spring Boot #Dependency Injection

Practice

Software Engineer • Technical • easy

Explain the difference between @Component, @Service, and @Repository annotations in Spring.

#Spring #Annotations

Practice

Software Engineer • Technical • medium

What are the SOLID principles of object-oriented design? Can you explain the Single Responsibility Principle with an example?

#OOP #Design Patterns #Clean Code

Practice

Software Engineer • Technical • easy

Explain the difference between an INNER JOIN and a LEFT JOIN in SQL. When would you use one over the other?

#Databases #Joins

Practice

Software Engineer • Technical • medium

How do you handle exceptions globally in a Spring Boot REST API?

#Spring Boot #REST #Exception Handling

Practice

Software Engineer • Technical • easy

What is the difference between REST and SOAP web services? Why has the industry largely moved towards REST?

#REST #SOAP #APIs

Practice

Software Engineer • Technical • medium

Explain the concept of a Virtual DOM in React. How does it improve performance?

#React #JavaScript #Performance

Practice

Software Engineer • Technical • hard

What is the difference between pessimistic and optimistic locking in database transactions?

#Concurrency #Transactions #SQL

Practice

Software Engineer • Technical • easy

Explain the benefits of Docker containerization. How does it improve the deployment process in a CI/CD pipeline?

#Docker #CI/CD #Deployment

Practice

Software Engineer • Technical • medium

What are the core differences between AWS S3 and AWS EBS? When would you use one over the other?

#AWS #Storage #Cloud

Practice

Software Engineer • Technical • hard

How do you manage state and data consistency across distributed microservices when a single business transaction spans multiple services?

#Microservices #Distributed Systems #Transactions

Practice

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Senior Engineer

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