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 Engineer
•
Coding
•
medium
Write a SQL query using window functions to calculate the 7-day rolling average of daily transaction volumes for our financial audit clients.
#Window Functions
#Data Aggregation
#Time Series
Data Engineer
•
Coding
•
hard
Given a table of user logins, write a SQL query to find the maximum number of consecutive days each user logged in.
#Advanced SQL
#Gaps and Islands Problem
#CTEs
Data Engineer
•
Coding
•
medium
Write a SQL query to identify and delete duplicate records in a massive transaction table without using the DISTINCT keyword.
#Data Cleansing
#CTEs
#Window Functions
Data Engineer
•
Coding
•
medium
Write a SQL query to find the second highest salary in each department. If a department has less than two employees, return null for that department.
#Window Functions
#CTEs
#Aggregations
Data Engineer
•
Technical
•
easy
Explain the difference between RANK(), DENSE_RANK(), and ROW_NUMBER(). Provide a scenario in a client reporting dashboard where you would choose DENSE_RANK() over RANK().
#Window Functions
#Data Ranking
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.