Deloitte

Deloitte

Multinational professional services network with offices in over 150 countries.

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 • Coding • medium

Write a custom React hook `useDebounce` that delays invoking a function until after wait milliseconds have elapsed since the last time the debounced function was invoked. How would you use this for a client's global search bar?

#JavaScript #React Hooks #Performance
Practice
Frontend Engineer • Coding • medium

Write a JavaScript function to flatten a deeply nested object, which is a common requirement when mapping complex client API responses to flat UI tables.

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

Implement a polyfill for Promise.all().

#Asynchronous JavaScript #Promises #Polyfills
Practice
Frontend Engineer • Coding • hard

Write a function to check if two DOM trees are identical structurally and have the same text content.

#DOM #Recursion #Tree Traversal
Practice
Frontend Engineer • Coding • medium

Implement an LRU (Least Recently Used) Cache class in JavaScript.

#Data Structures #Caching #JavaScript
Practice
Frontend Engineer • Coding • hard

Write a JavaScript function to deep clone an object, ensuring that circular references do not cause a stack overflow.

#JavaScript #Recursion #Memory Management
Practice
Frontend Engineer • Coding • medium

Implement an infinite scroll component in React. How do you handle performance when the list reaches 10,000 items?

#React #Intersection Observer #Virtualization
Practice
Frontend Engineer • Coding • easy

Write a function that takes a string containing brackets `()`, `{}`, `[]` and determines if the input string is valid.

#Stacks #String Manipulation
Practice
Frontend Engineer • Coding • easy

Given an array of integers, write a function to move all zeros to the end of it while maintaining the relative order of the non-zero elements. Do this in-place.

#Arrays #Two Pointers
Practice

Difficulty Radar

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The "Standard" Interviewer

Senior Engineer

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

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Think Out Loud

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

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