IBM OA Questions 2025: What Candidates Actually Saw
Last updated: May 2026
14+ IBM online assessment questions reported by candidates who took the OA in 2025. Sourced from 1Point3Acres, LeetCode, Blind, Glassdoor, and Reddit. Data grows as new reports are added.
IBM OA Format in 2025
The IBM online assessment has followed a consistent format across multiple hiring cycles. Based on 2025 reports in the database, candidates typically see 2 to 3 algorithmic coding problems delivered through a proctored online platform (most commonly HackerRank). Some roles include additional behavioral or work-simulation components after the coding section.
Time limits reported by candidates range from 70 to 110 minutes for the full assessment. The coding problems are auto-graded, so edge case handling and runtime efficiency both matter. Partial credit is available on some platforms if your solution passes a subset of test cases.
Real IBM OA Questions from 2025
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The first question was to flip an array in place, which could be completed in a few minutes; the second question was surprisingly to write front-end code. The HTML was given, and you had to write CSS
IBM 2026 Summer Internship Online Assessment for Research AI Engineer
The link I received was very strange; it was supposedly for a frontend engineer position, 60 minutes for two questions, one coding and one CSS. The coding question was very simple: a best-time buy and
IBM NG Fulltime Software Engineer Online Assessment Details
The interview lasted 60 minutes and consisted of two questions. The first question was extremely simple; I finished it in one minute after reading it, and I have absolutely no recollection of it 😬 Sor
IBM Online Assessment Coding Problem LeetCode-style Experience
Problem Statement Given an integer array `nums`, you are tasked with sorting it in non-decreasing order using the minimum number of specific operations. If sorting is impossible, return -1. **The
IBM Software Engieer OA questions
Q1. In a school, there are n students who want to participate in an academic decathlon. The teacher wants to select the maximum number of students possible. Each student has...
IBM GTS Labs Interview Experience (On-Campus)
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IBM India Interview Experience for SDE
IBM India visited our campus for a campus recruitment drive in the month of September 2025, and I am sharing my interview experience with the company below.OverviewOnline ...
My Interview Experience for the Application Developer Role at IBM || Not Selected || Dec 2024
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IBM || 6 rounds || Interview Experience || On Campus
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IBM Interview Experience|SWE@IBM ISDL|Internship+Placement
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IBM CodeKnack Interview Experience | CIC 2024 (On-Campus)
Our college notified us to register on the IBM career portal for CodeKnack CIC 2024.Day — 1 :Round 1 — Coidng Assessment — Offline Mode:This test was conducted on hacker r...
IBM Interview Experience for Software Developer | On-Campus 2021
Round 1: Cognitive Ability AssessmentThe assessment consisted of 5 games that are designed to assess an individual's aptitude, numeric ability, and problem-solving.The gam...
IBM Interview Experience for ISDL | On-Campus 2022
Round 1: IBM CognifyTime: 30 minutesA 30 min test aptitude/ cognitive test asks puzzle types of questions. You can see the types of questions and prepare on https://prepin...
IBM Recruitment Process | On-Campus 2019
IBM visited my college during the first week of November 2019. Their hiring process had five rounds which were elimination based.Round 1: Cognitive Ability GamesIn Cogniti...
Topic Breakdown (2025 OA)
Topics reported by candidates who took the IBM OA in 2025:
Difficulty Breakdown (2025 OA)
8
easy
2
hard
Difficulty labels are reported by candidates or inferred from LeetCode ratings.
How to Prepare for the IBM OA
The IBM OA is a timed, auto-graded coding test. Preparation is different from interview prep: you need to optimize for both correctness and speed, since partial credit requires passing test cases, not just showing reasoning.
- Practice timed sessions. Set a timer for 35 to 45 minutes per problem and simulate the real constraint.
- Focus on the topic clusters that appear most in IBM OA reports: dynamic programming, graphs, arrays, and strings make up the majority of reported problems.
- Read the problem constraints carefully before writing code. The constraints often reveal the expected time complexity and algorithm type.
- Use the LeakCode database to review 2025 OA questions from actual candidates. Pattern recognition across multiple sightings is a stronger prep signal than any single mock problem.
- If the OA includes a work simulation section, practice under realistic conditions. This section tests judgment and values alignment, not coding ability.
FAQ
What does the IBM OA look like in 2025?
Based on 2025 candidate reports, the IBM OA typically includes 2 to 3 coding problems and runs 70 to 110 minutes. Topics lean toward dynamic programming, graphs, arrays, and strings. Some roles include a work simulation section after the coding component.
How long is the IBM OA?
Most candidates report 70 to 90 minutes for the coding component. Roles with additional work simulation sections extend the total time to 110 to 150 minutes. Check your invitation email for the exact time allocation for your specific role.
What platform does IBM use for the OA?
IBM uses HackerRank or its own proprietary platform depending on the role and hiring cycle. Your invitation will specify the platform. Both platforms support multiple languages including Python, Java, C++, and JavaScript.
Are these real IBM OA questions?
Yes. All questions in the LeakCode database come from candidate reports on 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode. They are not AI-generated. Each question links to its source where available.
Other IBM OA Years
Related: IBM OA Hub · IBM All Questions · All OA Questions · Data Sources