DXC Technology

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

Full Stack Engineer • Behavioral • medium

Tell me about a time you had to push back on a client's unrealistic technical requirement. How did you handle the communication?

#Communication #Stakeholder Management #Agile
Practice
Full Stack Engineer • Behavioral • easy

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

#Continuous Learning #Problem Solving
Practice
Full Stack Engineer • Behavioral • hard

Tell me about a time you identified a major bug in production. How did you troubleshoot and resolve it?

#Debugging #Incident Management #Accountability
Practice
Full Stack Engineer • Behavioral • medium

Give an example of how you optimized an existing legacy codebase. What metrics did you use to measure success?

#Refactoring #Performance #Legacy Systems
Practice
Full Stack Engineer • Behavioral • medium

Describe your experience working in Agile/Scrum teams across different time zones. How do you ensure effective collaboration?

#Agile #Communication #Remote Work
Practice
Full Stack Engineer • Behavioral • medium

How do you handle disagreements with a senior developer regarding architectural choices?

#Conflict Resolution #Communication #Leadership
Practice
Full Stack Engineer • Behavioral • easy

Why do you want to work for DXC Technology, and how does your experience align with our focus on enterprise digital transformation?

#Company Knowledge #Career Goals
Practice
Full Stack Engineer • Coding • easy

Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.

#Arrays #Hash Tables
Practice
Full Stack Engineer • Coding • medium

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

#Database #Queries #Aggregation
Practice
Full Stack Engineer • Coding • medium

Implement a debounce function in JavaScript that delays invoking a provided function until after 'wait' milliseconds have elapsed.

#JavaScript #Closures #Asynchronous Programming
Practice
Full Stack Engineer • Coding • medium

Given a string s, find the length of the longest substring without repeating characters.

#Strings #Sliding Window #Hash Tables
Practice
Full Stack Engineer • Coding • medium

Write a function to merge an array of overlapping intervals into a new array of non-overlapping intervals.

#Arrays #Sorting
Practice
Full Stack Engineer • Coding • medium

Write a function to flatten a deeply nested JSON object into a single-level dictionary with dot-separated keys.

#Recursion #Data Structures #JSON
Practice
Full Stack Engineer • Coding • medium

Implement an LRU (Least Recently Used) Cache. It should support get and put operations in O(1) time complexity.

#Hash Tables #Linked Lists #Design
Practice
Full Stack Engineer • Coding • easy

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

#Strings #Stacks
Practice
Full Stack Engineer • Coding • easy

Find the first non-repeating character in a string and return its index. If it does not exist, return -1.

#Strings #Hash Tables
Practice
Full Stack Engineer • System Design • hard

Design a legacy-to-cloud migration strategy for a monolithic on-premise application. How do you ensure zero downtime for the client?

#Cloud Migration #Microservices #Strangler Fig Pattern
Practice
Full Stack Engineer • System Design • hard

Design a scalable notification system capable of sending millions of emails, SMS, and push notifications daily for an enterprise client.

#Message Queues #Microservices #Scalability
Practice
Full Stack Engineer • System Design • hard

Design an e-commerce checkout service that handles high concurrency during a Black Friday sale.

#Concurrency #Distributed Systems #Databases
Practice
Full Stack Engineer • System Design • medium

Design a centralized logging and monitoring architecture for a distributed microservices ecosystem.

#Observability #DevOps #Microservices
Practice
Full Stack Engineer • System Design • medium

Design a URL shortener service like Bitly. How do you ensure uniqueness and handle high read volumes?

#Hashing #Caching #Scalability
Practice
Full Stack Engineer • Technical • hard

Explain the difference between clustered and non-clustered indexes. When would you use one over the other in an enterprise database?

#SQL Server #Performance Tuning #Indexing
Practice
Full Stack Engineer • Technical • medium

How does React's Virtual DOM work, and how does the reconciliation algorithm (Fiber) improve performance?

#React #JavaScript #Performance
Practice
Full Stack Engineer • Technical • medium

What is Dependency Injection, and how is it implemented in Spring Boot (or .NET Core)?

#Java #Spring Boot #Design Patterns #C#
Practice
Full Stack Engineer • Technical • medium

Explain the concept of JWT (JSON Web Tokens). How do you secure a REST API using JWT, and what are the security risks?

#Authentication #Authorization #Web Security
Practice
Full Stack Engineer • Technical • medium

What are the differences between monolithic and microservices architectures? When would you recommend a monolith over microservices?

#Microservices #System Design #Software Architecture
Practice
Full Stack Engineer • Technical • medium

How do you handle state management in a large-scale React application?

#React #Redux #Context API
Practice
Full Stack Engineer • Technical • easy

Explain CORS (Cross-Origin Resource Sharing). How do you configure it in a backend API, and why is it necessary?

#HTTP #Security #Browsers
Practice
Full Stack Engineer • Technical • medium

How does the event loop work in Node.js, and how does it handle asynchronous operations?

#Node.js #Asynchronous Programming #Architecture
Practice
Full Stack Engineer • Technical • medium

What are Java Streams and how do they differ from Collections? Provide an example of when you would use them.

#Java #Functional Programming
Practice
Full Stack Engineer • Technical • medium

Explain the difference between React's useMemo and useCallback hooks. When should you avoid using them?

#React #Performance Optimization
Practice
Full Stack Engineer • Technical • hard

How do you handle database migrations in a CI/CD pipeline without causing downtime?

#CI/CD #Database #Deployment
Practice
Full Stack Engineer • Technical • hard

Describe the lifecycle of a Spring Bean from instantiation to destruction.

#Java #Spring Framework #Architecture
Practice
Full Stack Engineer • Technical • medium

What are the main differences between running applications in Docker containers versus Virtual Machines?

#Docker #Virtualization #Cloud
Practice
Full Stack Engineer • Technical • hard

How do you optimize the performance of a slow-loading web application? Walk me through your diagnostic steps.

#Performance #Frontend #Networking
Practice

Difficulty Radar

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Meet Your Interviewers

The "Standard" Interviewer

Senior Engineer

Focuses on core competencies, system constraints, and clear communication.

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Unwritten Rules

Think Out Loud

Always explain your thought process before writing code or drawing architecture.

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