Dataford
Dataford
Top 34
Prep plan
Updated weekly · Last refresh Oct 17

GEN Software Engineer Interview Questions

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

34questions
~5htotal time
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1
CodingStart here. 14 questions · ~120 min
Binary Tree and Zig-Zag TraversalMedium
Practice

Traverse a binary tree level by level while alternating the direction of each level.

bfsData StructurestraversalGEN
Coding Round on Server SystemsMedium

Tests your ability to work across backend concepts and core data structure implementations.

Data StructuresGEN
Typical CS Graduate Engineering QuestionsMedium

Assesses your general problem-solving approach for standard software engineering tasks.

designGEN
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2
Technical Fundamentals5 questions · ~43 min
Test First and LastEasy

Assesses your testing strategy and prioritization for risk reduction.

TestingPrioritizationGEN
Black Box and White Box TestingMedium

Assesses your understanding of testing approaches and how you choose between them.

experienceGEN
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3
Behavioral & Leadership12 questions · ~103 min
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4
More topics3 questions · ~26 min
REST, Event-Driven, and DatabasesMedium

Evaluates your system design understanding across APIs, events, and data performance.

databasesarchitectureGEN
Clean Code and ArchitectureMedium

Tests practices for maintainability, code quality, and sustainable architecture in production.

clean codearchitectureGEN
Find and Explain a BugMedium

Evaluates debugging skills and your ability to connect test methods to real defects.

TestingpythonGEN

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL Query OptimizationMedium
Practice
Practice drill

Optimize a slow PostgreSQL query that aggregates completed transactions while preserving customers with no matching activity.

Performance Tuningdatabase optimizationindexesDDroisysCapgeminiNomura
SQL Window Functions ExperienceMedium
Practice
Practice drill

Use SQL window functions to rank regions by average 2024 yield within each country.

Window FunctionsJoinsData ManipulationErnst & YoungKBRMaximus Tech
Unique Elements and Top-K FrequenciesMedium
Practice
Practice drill

Return the first row for each unique value, then rank the k most frequent values.

large datasetsData Structurescomplex queriesEverlaw
The finish line: interview-readyComplete all 34 questions plus 3 hands-on drills to finish this plan.