Capgemini
Global leader in partnering with companies to transform and manage their business by harnessing the power of technology.
4 Rounds
~21 Days
Medium
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
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Coding
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medium
Build a custom React hook called `useFetch` that takes a URL and returns `data`, `loading`, and `error` states. It should also handle component unmounting to prevent memory leaks.
#Custom Hooks
#API Integration
#Cleanup Functions
Frontend Engineer
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Coding
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medium
Implement a paginated data table component in React. It should fetch data from a mock API, display 10 rows per page, and include 'Next' and 'Previous' buttons.
#Component Design
#Pagination
#State Management
Frontend Engineer
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Coding
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hard
Write a React component that renders a nested folder tree structure from a deeply nested JSON object. The folders should be collapsible.
#Recursive Components
#State Management
#UI/UX
Frontend Engineer
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Technical
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medium
In React, what is the difference between `useMemo` and `useCallback`? Give a scenario in a complex enterprise dashboard where misusing them could actually degrade performance.
#React Hooks
#Performance Optimization
#Memoization
Frontend Engineer
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Technical
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hard
How does React's Virtual DOM work? Explain the reconciliation process and how the Fiber architecture optimizes rendering for large-scale applications.
#Virtual DOM
#Reconciliation
#React Fiber
Frontend Engineer
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Technical
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medium
Compare Context API and Redux. If you were building a multi-step onboarding flow for a banking client, which would you choose for state management and why?
#State Management
#Redux
#Context API
#Architecture
Frontend Engineer
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Technical
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medium
How do you handle React performance optimization in a large-scale client application? Discuss code splitting, lazy loading, and bundle size reduction.
#Performance Optimization
#Code Splitting
#Webpack
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
SimulateUnwritten Rules
Think Out Loud
Always explain your thought process before writing code or drawing architecture.