IBM Data Scientist Interview Questions

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

What to Expect in the IBM Data Scientist Interview

The IBM Data Scientist 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 Data Scientist Questions (Sample)

Advice for Legacy App Migration

system design hard 2025 reddit

Looking for some advice regarding a legacy app migration we are preparing for at work. Unfortunately we aren't a large dev team and there isn't a lot of deep dev knowledge. No one has any experience w

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IBM India on-campus interview experience 2025

recruiter easy 2025 gfg

I attended the IBM India pooled drive in August at Coimbatore, Tamil Nadu for the role of Software Developer.Eligibility:Only female candidates from B.E/B.Tech (CSE, IT, I...

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IBM - Data Scientist

oa easy 2020 leetcode

I applied online last month, and got an automated email asking me to complete a cognitive test (which Biden should try solving) and a technical programming challenge. I had two weeks...

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Rolling String (For Data Science )

coding 0 1p3a_oj

### Problem Overview - Task: Modify a lowercase string by applying roll operations on specified substrings, shifting letters circularly left (L) or right (R), then return the final string. - Input: lo

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Get Minimum Time for DNS Resolution (for Data Science Developer)

coding 0 1p3a_oj

### Problem Overview - Simulate DNS resolution with a cache that stores the cache_size most recent requests, and compute the minimum time per URL using cache_time or server_time. - Input: cache_size,

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Difficulty Breakdown

2

easy

2

0

1

hard

Based on 5 questions with difficulty labels from candidate reports.

Interview Rounds

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

Round Questions in Database
coding 2
system design 1
recruiter 1
oa 1

Most Common Topics

strings (1) sql (1) ml theory (1) arrays (1)

Question Recency

2

2025

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

How to Prepare for the IBM Data Scientist Interview

Use the LeakCode question database as your primary research tool. Filter by role (Data Scientist), 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 Data Scientist questions are in the database?

5+ 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