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Updated weekly · Last refresh Aug 30

IBM Software Engineer Interview Questions

The questions to prepare for a IBM Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

50questions
~10htotal time
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1
CodingStart here. 10 questions · ~116 min
Sliding Window Rate ViolationsMedium
Practice
Recently asked

Find IP addresses exceeding k requests in any t-second window using per-IP sorting and a sliding window.

Arraysrate limitingSliding WindowIBM
Insertions to Repeating PatternHard
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Recently asked

Use greedy subsequence matching to find the fewest insertions needed to make a string full repetitions of a supplied pattern.

StringsIBM
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2
SQL & Data Manipulation9 questions + 2 drills · ~125 min
3
System Design9 questions · ~105 min
Git Stash vs RebaseMedium
Recently asked

Evaluates version control proficiency and decision-making for maintaining a readable commit history.

version controlgitIBM
REST vs RPC and HTTP SafetyMedium
Recently asked

Evaluates API design trade-offs and HTTP method safety for secure state-changing operations.

restauthenticationapiIBM
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4
Security & Infrastructure9 questions · ~105 min
Process vs Thread and Context SwitchingMedium
Recently asked

Assesses systems knowledge of concurrency primitives and performance effects of scheduling.

performanceprocessesIBM
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5
Execution5 questions · ~58 min
API Server Down ResponseMedium

Evaluates incident response thinking, triage, and communication when a production service fails.

apiIBM
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6
Pipelines6 questions · ~70 min
Kubernetes Controller for Pod BalanceHard

Tests your ability to design Kubernetes control logic and manage desired state.

kubernetesIBM
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7
More topics2 questions · ~23 min
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The finish line: interview-readyComplete all 50 questions plus 2 hands-on drills to finish this plan.