EY
Ernst & Young Global Limited, a multinational professional services partnership.
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
Data Scientist
•
Coding
•
easy
Given an array of transaction amounts and a target fraudulent sum, write a function to return the indices of the two transactions that add up exactly to the target sum.
#Arrays
#Hash Maps
#Time Complexity
Data Scientist
•
Coding
•
easy
Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. This is useful for parsing nested JSON logs from Azure.
#Stacks
#String Parsing
Data Scientist
•
Coding
•
medium
Write a Python script to find the Kth largest transaction amount in an unsorted array of millions of transactions.
#Heaps
#Sorting
#Optimization
Data Scientist
•
Coding
•
medium
Given a list of intervals representing meeting times, write a function to merge all overlapping intervals. This is useful for calculating continuous billable periods.
#Arrays
#Sorting
#Intervals
Data Scientist
•
Coding
•
hard
Write a Python function to calculate the TF-IDF scores for a corpus of documents from scratch (without using scikit-learn).
#NLP
#Math
#Python
Data Scientist
•
Coding
•
easy
Given a dataset of historical stock prices, write a Python algorithm to calculate the maximum profit you could achieve from a single buy and a single sell transaction.
#Arrays
#Dynamic Programming
#Optimization
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.