EY

Ernst & Young Global Limited, a multinational professional services partnership.

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 8 Cloud Engineer 1 Data Scientist 6 Frontend Engineer 3 Full Stack Engineer 6 Machine Learning Engineer 5 Software Engineer 10

All Topics Algorithms 8 System Design 7 SQL 2 Architecture 2 Database 2 Culture Fit 2 Leadership 2 Core Language 1

Backend Engineer • Coding • easy

Given an array of integers and an integer target, return indices of the two numbers such that they add up to target. Assume exactly one solution exists.

#Arrays #Hash Table

Practice

Backend Engineer • Coding • easy

Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. This is often used in our tax formula parsing engines.

#Strings #Stack

Practice

Backend Engineer • Coding • medium

Given an array of intervals where intervals[i] = [starti, endi], merge all overlapping intervals. We use this logic to consolidate billable hours or tax periods.

#Arrays #Sorting

Practice

Backend Engineer • Coding • medium

Find the Kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element.

#Arrays #Heap #Divide and Conquer

Practice

Backend Engineer • Coding • easy

Write a function to reverse a singly linked list.

#Linked Lists #Pointers

Practice

Backend Engineer • Coding • medium

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

#Strings #Hash Table #Sorting

Practice

Backend Engineer • Coding • medium

Given a binary search tree (BST), find the lowest common ancestor (LCA) node of two given nodes in the BST.

#Trees #Binary Search Tree #Recursion

Practice

Backend Engineer • Coding • medium

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

#Strings #Sliding Window #Hash Table

Practice

Difficulty Radar

Based on recent AI-sourced data.

Meet Your Interviewers

The "Standard" Interviewer

Senior Engineer

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

Simulate

Unwritten Rules

Think Out Loud

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

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