IBM Software Engineer Interview Questions

204+ IBM Software Engineer interview questions drawn from real candidate reports. Sources include 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode. Questions span every stage of the IBM Software Engineer loop: OA, phone screen, system design, behavioral, and onsite coding.

What to Expect in the IBM Software Engineer Interview

The IBM Software Engineer interview process typically runs 4 to 6 rounds depending on seniority level. Based on candidate reports in the LeakCode database, the loop usually includes a resume review, an online assessment or coding phone screen, one or more technical rounds, a system design round (for senior and above), and a behavioral or values round.

Difficulty skews toward medium and hard LeetCode-style problems in the coding rounds. System design questions test breadth (component selection, scaling, trade-off reasoning) more than deep implementation. Behavioral questions are tied to the company's stated values and principles.

IBM Software Engineer Questions (Sample)

IBM AI Developer Entry Level Interview Questions: REST API and LeetCode

easy 2026 1p3a

The first question took me around 5 minutes to do. The second one hit me in a large blind spot, and no question on Leetcode will prepare you for it. Putting this here as a potential warning. Even with

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IBM - 91689 - Software Developer 2026 ELH -Interview with hiring manager

behavioral easy 2026 reddit

I have an interview in a few days for the IBM software developer 91689 position. It is a 45 minute with a hiring. The problem is they never gave me any OAs or any other behavioral tests even though an

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Ibm sde intern

behavioral 2026 reddit

I had my first interview about 2 weeks ago, labeled as a “Blitz” interview. It was a 30-minute session that was mostly a resume deep dive with some behavioral questions. It went really well, and based

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Anyone else experienced getting offered a job right after the behavioral interview?

behavioral 2026 reddit

I had interviewed for the IBM app developer position and I had the first interview, which I got after taking the coding skills assessment. The first interview was just behavioral and spoke on why IBM,

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IBM Canada Internship Technical Phone Screen Overview

phone screen 2025 1p3a

After submitting your resume, the co-op program will send you an online assessment (OA) confirmation link. Be sure to click it! Then you'll get this HackerRank question, two questions in one hour. The

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IBM AI SDE Internship Online Assessment

oa 2025 1p3a

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

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IBM 2026 Summer Internship Online Assessment for Research AI Engineer

oa easy 2025 1p3a

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

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IBM NG Fulltime Software Engineer Online Assessment Details

oa easy 2025 1p3a

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

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IBM Online Assessment Coding Problem LeetCode-style Experience

oa 2025 1p3a

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

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IBM Software Engieer OA questions

oa 2025 leetcode

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...

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My Interview Experience for the Application Developer Role at IBM || Not Selected || Dec 2024

oa easy 2025 leetcode

My interview experience for the Application Developer role at IBM with CTC of 4.5 LPA began with a notification from our college TPO, announcing that IBM would be hiring the...

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IBM || 6 rounds || Interview Experience || On Campus

oa easy 2025 leetcode

IBM conducted an on-campus recruitment drive for the ASE position, which consisted of six rounds: 1. First Round (Online Test): This was a HackerRank test where candidates were required...

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IBM India Interview Experience for SDE

oa easy 2025 gfg

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 ...

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IBM On Campus Drive 2025

phone screen hard 2025 gfg

I recently attended the IBM On-Campus Drive (September 2025) and would like to share my experience.? EligibilityOpen to female candidates from all branches.Conducted acros...

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IBM Interview Experience|SWE@IBM ISDL|Internship+Placement

oa 2025 gfg

Round 1: Online Test (HackerRank)Format: 25 MCQs on Computer Science fundamentals and 3 DSA coding questions.Platform: HackerRankRound 2: Online Test (HackerRank)Format: S...

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Difficulty Breakdown

67

0

34

easy

29

medium

10

hard

Based on 204 questions with difficulty labels from candidate reports.

Interview Rounds

Here is how the IBM Software Engineer questions in the LeakCode database break down by interview round, based on what candidates reported:

Round Questions in Database
coding 129
oa 44
phone screen 8
recruiter 4
onsite 3
behavioral 3

Most Common Topics

arrays (66) strings (30) math (14) dynamic programming (12) hash table (6) greedy (5) behavioral (5) stack (4)

Question Recency

4

2026

14

2025

20

2024

13

2023

Question counts by interview year, based on candidate-reported dates.

How to Prepare for the IBM Software Engineer Interview

Use the LeakCode question database as your primary research tool. Filter by role (Software Engineer), then by round type to focus your prep on the specific stages in your upcoming loop. Sort by recency to see what 2026 candidates actually faced.

  • Start with questions from the last 12 months. Interview processes change and recent data is the strongest signal.
  • Cross-reference questions that appear in multiple sources (1p3a, Blind, Glassdoor). Multi-source confirmation means a question has stronger recurrence probability.
  • For system design rounds: focus on the question patterns, not individual questions. The same design principles recur across many prompts.
  • For behavioral rounds: map your experiences to the company's stated values before the interview. Most behavioral questions at top companies are derivatives of a small set of core leadership competencies.

FAQ

How many IBM Software Engineer questions are in the database?

204+ questions from verified candidate reports. The count grows as new reports are scraped daily from 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode.

Are these questions from real IBM interviews?

Yes. All questions are sourced from actual candidate interview reports, not generated by AI. Each entry links back to its source URL where available, and questions are tagged with the year and round reported by the candidate.

How current is this data?

LeakCode updates daily. The database is filtered to exclude duplicate and low-quality entries. You can filter by interview year to focus on recent cycles.

Does LeakCode cover IBM OA questions specifically?

Yes. The database includes online assessment questions tagged with round type. See the IBM OA page for a dedicated view.

Related: IBM All Questions · IBM OA Questions · Browse All Companies · Data Sources