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BCG Software Engineer Interview Questions

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

33questions
~5htotal time
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1
CodingStart here. 9 questions · ~77 min
Find Missing Number in RangeEasy
Practice
Recently asked

Use arithmetic to find the missing number in an array containing distinct values from 0 to n.

MathArraysGreedyBBCG
Optimize Time ComplexityMedium
Recently asked

Tests reasoning about algorithmic complexity and performance trade-offs.

time complexityoptimizationBBCG
Analyze Space ComplexityMedium
Recently asked

Tests understanding of memory usage and how it affects solution design.

space complexityAnalysisBBCG
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2
Execution4 questions · ~34 min
End-to-End Full-Stack Case WorkHard

Tests debugging approach and end-to-end delivery under interview constraints.

system designinterview processBBCG
Backend Endpoints and PrinciplesMedium

Evaluates backend implementation skills and your use of engineering best practices.

BBCG
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3
Behavioral & Leadership17 questions · ~145 min
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4
More topics3 questions · ~26 min
DSA and SQL PracticeMedium

Assesses algorithmic thinking and practical SQL query skills.

sql queriesBBCG
Deploy an End-to-End ML ModelMedium

Assesses system thinking for ML deployment, including components and operational concerns.

deploymentBBCG
SQL Joins and Backend TopicsMedium

Tests SQL join understanding and your ability to use it in backend scenarios.

JoinssqlBBCG

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Rolling Average with SQL WindowsMedium
Practice
Recently asked
Practice drill

Calculate each active RpmGlobal Enterprise Planning user's 30-day rolling average of daily activity.

TavantRpmglobalTwo Six Technologies
Top Earners via Table JoinMedium
Practice
Practice drill

Rank Motorola Solutions employees by total earnings using a LEFT JOIN, aggregation, COALESCE, and ROW_NUMBER.

JoinssqlMotorola SolutionsMotorola
Weekly Service KPI by TeamMedium
Practice
Practice drill

Analyze weekly service delivery performance by team using joins, a CTE, date aggregation, and KPI calculations.

KPIJoinssqlDeloitteReputation
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