Depending on the role and location, IBM may include coding, video, and English-language assessments in its software developer hiring process. IBM interviews use structured and behavioral questions that reflect the skills the job requires. You'll need to demonstrate practical technical judgment and explain your decisions.

These nine IBM interview questions cover coding, system design, and behavioral topics.

What to Expect: IBM Interview Process

IBM's application process page lists multiple-choice, coding, video, and English-language assessments. Ask your recruiter which assessments apply to your role, whether you'll write code live, and which language or editor you'll use.

IBM lists four steps: a coding assessment, a recruiter screen, a technical interview, and a behavioral discussion with management. The technical interview may include project discussions as well as a problem. Make your thought process visible even if you don't initially know the answer.

How to Prepare and Pass IBM Interviews

Start with the job listing. Turn each requirement into a topic you can discuss through one example. Plan for four to six weeks if your fundamentals are current, or eight to twelve weeks if you need to rebuild them.

• Practice coding out loud: Explain inputs, state a simple solution, then refine if necessary, and test edge cases. Practice arrays, hash maps, sliding windows, sorting, graph traversals, and complexity analysis.

• Tell your project story. Create a 2-minute summary and a more technical version. Talk about what you contributed, a problem you encountered, the tradeoff you made, and what the result was.

• Use Lodely to rotate through real company questions across coding, system design, and behavioral practice.

IBM Interview Questions

Recently asked in real interviews

These questions were asked recently in real IBM interviews. Practice these and 4,000+ other questions from 1,000+ companies on Lodely.

Move all zeros to the end of an array.

algorithmscoding Easy

What is your biggest strength, and can you share a concrete example that shows how it helps you succeed in work like this role?

behavioral Medium

Smallest Subarray with K Distinct Integers

algorithms Medium

Create a product that monitors animal movements

system-design Easy

Given an array of meeting time intervals where intervals[i] = [start_i, end_i], determine if a person could attend all meetings.

algorithmscoding Easy

Create a distributed file system design.

system-design Hard

Given an nxn grid of 0s and 1s, determine the count of islands present.

analytical Easy

Tell me about a time when you made short-term sacrifices for long-term gains.

behavioral Medium

Why do you want to work at IBM, and which specific products, technologies, or parts of its culture make it a strong fit for your background and career goals?

behavioral Easy

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IBM Interview Breakdown

Move All Zeros to the End of an Array

arr = [0,1,0,3,12]

[1,3,12,0,0]

arr = [1,2,3,4,0,0]

[1,2,3,4,0,0]

Type: In-place array traversal.

The Trick: Move non-zero values to the front while preserving order, then test empty, all-zero, and mixed arrays.

What It Tests: Iteration, memory use, and your ability to write a readable linear-time solution.

What Is Your Biggest Strength?

Type: Behavioral evidence and role fit.

The Trick: Choose a strength relevant to the role and demonstrate it with a one-sentence story that covers the situation, your action, and the result.

What It Tests: Self-awareness, clear communication, and team fit.

Smallest Subarray with K Distinct Integers

Type: Sliding window with frequency counting.

The Trick: Track counts as the window expands and contracts. A window with too few unique values cannot be a valid answer.

What It Tests: Your ability to maintain an invariant, choose the correct map, and reason about linear time.

The remaining six questions cover animal movement, meeting-room intervals, distributed files, islands, long-term tradeoffs, and why IBM. For each, name the constraint, the approach, and the result.

Practice these questions aloud. Practicing company-specific questions on Lodely helps you move between code, architecture, and a concise work story without losing structure.

What Comes After The Interview

Ask the recruiter when to expect feedback. IBM says the feedback timeline depends on the job, the number of applicants, and response times. After sending a targeted thank-you email, follow up once if the promised date passes.

Compensation is part of the decision. U.S. IBM software engineer salaries data from (September 15, 2026) lists median compensation (base salary + bonus + annualized stock options + vesting) at $131K (Band 6), $164K (Band 7), $203K (Band 8), and $280K (Band 9). Before accepting an offer, compare the base pay, bonus, annualized equity (stock options), vesting, level (band), location, and scope.

Candidate Experiences

The loop can combine an assessment and coding work with project and behavioral discussions. Confirm the agenda with your recruiter, and practice your explanations as thoroughly as your code.

Conclusion

IBM interviewers look for technical reasoning, evidence from your projects, and well-structured behavioral answers. Practice these nine questions on Lodely to move smoothly between coding, design, and discussion.