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
Cloud Engineer
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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.
#Heaps
#Quickselect
Cloud 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
Cloud Engineer
•
Coding
•
easy
Write a function to determine if a string containing just the characters '(', ')', '{', '}', '[' and ']' is valid.
#Strings
#Stacks
Cloud Engineer
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Coding
•
medium
Given an array of intervals where intervals[i] = [start_i, end_i], merge all overlapping intervals and return an array of the non-overlapping intervals.
#Arrays
#Sorting
Cloud Engineer
•
Coding
•
medium
Given an m x n 2D binary grid which represents a map of '1's (land) and '0's (water), return the number of islands.
#Graph
#DFS
#BFS
Cloud Engineer
•
Coding
•
medium
Given an array of characters, compress it in-place. The length after compression must always be smaller than or equal to the original array.
#Two Pointers
#Strings
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.