IBM

IBM

Global technology and consulting firm with deep roots in enterprise IT and AI.

3 Rounds ~14 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

Machine Learning Engineer • Coding • easy

Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.

#Arrays #Hash Table
Practice
Machine Learning Engineer • Coding • easy

Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.

#Strings #Stack
Practice
Machine Learning Engineer • Coding • medium

Given an array of intervals where intervals[i] = [starti, endi], merge all overlapping intervals.

#Arrays #Sorting
Practice
Machine Learning Engineer • Coding • medium

Design a data structure that follows the constraints of a Least Recently Used (LRU) cache.

#Hash Table #Doubly-Linked List #Design
Practice
Machine Learning 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.

#Depth-First Search #Breadth-First Search #Matrix
Practice
Machine Learning Engineer • Coding • medium

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

#Strings #Hash Table #Sorting
Practice
Machine Learning Engineer • Coding • medium

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

#Strings #Sliding Window
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.

Practice Now