IBM
Global technology and consulting firm with deep roots in enterprise IT and AI.
3 Rounds
~14 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
•
easy
Write a Python function to find the first non-repeating character in a string.
#Strings
#Hash Maps
Data Engineer
•
Coding
•
medium
Write a Python script to merge multiple large CSV files efficiently without loading them entirely into memory.
#File I/O
#Generators
#Memory Management
Data Engineer
•
Coding
•
medium
Parse a JSON log file in Python and extract specific error codes, returning a count of each error type.
#JSON
#Data Parsing
#Dictionaries
Data Engineer
•
Coding
•
medium
Write a Python script using Pandas to join two large datasets and handle missing values in the resulting dataframe.
#Python
#Pandas
#Data Cleaning
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.