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the LEGO Group Software Engineer Interview Questions

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

50questions
~7htotal time
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1
ExecutionStart here. 5 questions · ~40 min
Adapting to Changing RequirementsEasy
Recently asked

Describe how you adapted when project requirements or the expected format changed midstream.

Trade-offsRisk AssessmentScope Managementthe LEGO Group
Design Improvements With More TimeMedium
Recently asked

Tests your ability to iterate, manage technical debt, and plan next steps.

system designProblem Solvingthe LEGO Group
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2
Coding11 questions · ~88 min
Decisions in Take-Home ProjectMedium
Recently asked

Tests your reasoning, tradeoffs, and ability to explain design choices clearly.

Decision Makingcode qualitythe LEGO Group
Debugging Distributed Critical IssuesHard
Recently asked

Tests structured troubleshooting, observability, and incident-style decision making.

Problem Solvingdistributed systemsDebuggingthe LEGO Group
Readable Code for TeamsMedium
Recently asked

Tests your habits for clarity, conventions, and collaboration in shared codebases.

best practicesthe LEGO Group
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3
System Design6 questions · ~48 min
Migrating Legacy to Modern StackHard
Recently asked

Tests your experience with migration strategy, risk management, and incremental delivery.

migrationlegacy systemsthe LEGO Group
Architectural Pattern ChoiceMedium
Recently asked

Tests your ability to justify design tradeoffs and align architecture to requirements.

system designarchitecturedesign decisionsthe LEGO Group
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4
Behavioral & Leadership27 questions · ~217 min
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5
More topics1 question · ~8 min
Static Analysis for Embedded SoftwareMedium

Evaluates your tooling knowledge and how you use static analysis to improve embedded code quality.

code analysisthe LEGO Group
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