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

Frontend Engineer • Behavioral • medium

Tell me about a time you had to push back on a client's feature request because it would negatively impact frontend performance.

#Communication #Client Management #Performance
Practice
Frontend Engineer • Behavioral • medium

Describe a situation where you had to quickly learn a new frontend technology or framework to meet a project deadline.

#Adaptability #Learning #Agile
Practice
Frontend Engineer • Behavioral • medium

How do you handle disagreements with a backend developer regarding API contract designs?

#Collaboration #Conflict Resolution #API Design
Practice
Frontend Engineer • Behavioral • hard

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

#Problem Solving #Debugging #Incident Management
Practice
Frontend Engineer • Behavioral • hard

DXC often works with legacy codebases. Describe your approach to refactoring a poorly documented, legacy JavaScript application without breaking existing features.

#Refactoring #Legacy Code #Testing
Practice
Frontend Engineer • Coding • medium

Implement a polyfill for `Promise.all`.

#JavaScript #Asynchronous Programming #Promises
Practice
Frontend Engineer • Coding • easy

Explain event delegation in JavaScript. Write a snippet to handle click events on a dynamically generated list of items.

#DOM Manipulation #Events #JavaScript
Practice
Frontend Engineer • Coding • hard

Write a function to deep clone a nested JavaScript object, ensuring you handle circular references.

#JavaScript #Data Structures #Recursion
Practice
Frontend Engineer • Coding • medium

Implement a debounce function. Explain how it improves performance in a search input component.

#JavaScript #Performance #Closures
Practice
Frontend Engineer • Coding • hard

Write a custom TypeScript utility type `RequireOnlyOne<T, Keys>` that makes all properties of an object optional except one specific property.

#TypeScript #Advanced Types #Utility Types
Practice
Frontend Engineer • Coding • easy

Write a function that flattens a deeply nested array without using `Array.prototype.flat`.

#JavaScript #Arrays #Recursion
Practice
Frontend Engineer • Coding • medium

Design a custom React hook `useFetch` that handles loading, error, and caching states for API calls.

#React #Custom Hooks #API Integration
Practice
Frontend Engineer • Coding • medium

Write a Higher-Order Component (HOC) in React that restricts access to a route based on user roles.

#React #Security #HOC
Practice
Frontend Engineer • Coding • easy

Migrate a legacy class-based React component with `componentDidMount` and `componentWillUnmount` to a functional component.

#React #Hooks #Refactoring
Practice
Frontend Engineer • Coding • easy

Write the CSS to center a `div` both horizontally and vertically using Flexbox, and then using CSS Grid.

#CSS #Flexbox #Grid
Practice
Frontend Engineer • Coding • easy

What is semantic HTML? Refactor a given `div`-soup layout into semantic HTML5 tags.

#HTML #Semantics #Accessibility
Practice
Frontend Engineer • System Design • hard

Design the frontend architecture for a large-scale enterprise dashboard that visualizes real-time financial data.

#Frontend Architecture #WebSockets #Performance
Practice
Frontend Engineer • System Design • hard

How would you design a micro-frontend architecture for a legacy monolithic application being modernized by DXC?

#Micro-frontends #Module Federation #Legacy Modernization
Practice
Frontend Engineer • System Design • medium

Design an autocomplete search component. Discuss API debouncing, caching, and accessibility.

#Component Design #Performance #Accessibility
Practice
Frontend Engineer • System Design • hard

Design a scalable design system and component library to be used across multiple DXC client projects.

#Design Systems #Architecture #Reusability
Practice
Frontend Engineer • Technical • medium

How does the event loop work in JavaScript? Explain the difference between microtasks and macrotasks with examples.

#Event Loop #Concurrency #JavaScript
Practice
Frontend Engineer • Technical • easy

What are the differences between `interface` and `type` in TypeScript? When would you use one over the other in a large enterprise application?

#TypeScript #Type System #Architecture
Practice
Frontend Engineer • Technical • medium

Explain closures in JavaScript. Give a practical example of where you used them in a recent project.

#JavaScript #Closures #Scope
Practice
Frontend Engineer • Technical • medium

How do you identify and handle memory leaks in a Single Page Application (SPA)?

#Performance #Memory Management #Debugging
Practice
Frontend Engineer • Technical • medium

How does React's Virtual DOM work, and how does the reconciliation algorithm optimize UI updates?

#React #Virtual DOM #Performance
Practice
Frontend Engineer • Technical • medium

In React, explain the difference between `useMemo` and `useCallback`. Describe a scenario where using them actually degrades performance.

#React #Hooks #Performance Optimization
Practice
Frontend Engineer • Technical • medium

How do you manage global state in a large-scale React application? Compare Redux Toolkit and the Context API.

#React #State Management #Redux
Practice
Frontend Engineer • Technical • medium

Explain the component lifecycle in Angular. How do you clean up RxJS subscriptions to prevent memory leaks?

#Angular #RxJS #Lifecycle Hooks
Practice
Frontend Engineer • Technical • medium

How does Angular's Dependency Injection work? Explain the difference between `providedIn: 'root'` and providing a service at the component level.

#Angular #Dependency Injection #Architecture
Practice
Frontend Engineer • Technical • medium

Explain Server-Side Rendering (SSR) vs Client-Side Rendering (CSR). Why might DXC recommend SSR for a client's public-facing e-commerce site?

#SSR #SEO #Web Performance
Practice
Frontend Engineer • Technical • hard

What are React Server Components? How do they differ from traditional Server-Side Rendering (SSR)?

#React #Server Components #Next.js
Practice
Frontend Engineer • Technical • medium

How do you optimize the initial load time of a heavy Single Page Application? Discuss code splitting, lazy loading, and asset optimization.

#Performance #Webpack #Optimization
Practice
Frontend Engineer • Technical • easy

Explain the CSS Box Model. How does `box-sizing: border-box` change its behavior?

#CSS #Layout #Fundamentals
Practice
Frontend Engineer • Technical • medium

What are the key principles of Web Accessibility (WCAG)? How do you ensure a complex data table is accessible to screen readers?

#Accessibility #HTML #WCAG
Practice
Frontend Engineer • Technical • medium

Explain CSS specificity and how you avoid specificity wars in a large enterprise codebase.

#CSS #Architecture #Best Practices
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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