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The Boston Consulting Group Software Engineer Interview Questions

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

45questions
~6htotal time
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1
CodingStart here. 15 questions · ~122 min
Complex Pattern Substring ExtractionHard
Recently asked

Tests advanced string algorithm design and reasoning about constraints.

Basic AlgorithmsStringsSearchingThe Boston Consulting Group
Abstraction vs PolymorphismMedium

Evaluates your object-oriented concepts and ability to distinguish related principles.

oopThe Boston Consulting Group
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2
System Design4 questions · ~33 min
Schema for Collaborative High TrafficHard
Recently asked

Tests data modeling tradeoffs and schema design for scale and collaboration workloads.

Technical Fluencyschema designData ModelingThe Boston Consulting Group
Design a Full Stack Case InterviewHard

Evaluates your full stack design process and ability to deliver an end-to-end solution.

The Boston Consulting Group
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3
Behavioral & Leadership22 questions · ~179 min
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4
More topics4 questions · ~33 min
Real-Time Rolling Averages PipelineHard
Recently asked

Tests system design for streaming pipelines and real-time analytics logic.

Stream ProcessingAggregationsPipelinesThe Boston Consulting Group
DSA and SQL PracticeMedium

Assesses your ability to combine data structures and SQL query skills.

sqlThe Boston Consulting Group
Real-Time Rolling Averages SystemHard
Recently asked

Tests end-to-end design for real-time computation, scalability, and reliability.

Data QualityStream ProcessingAggregationsThe Boston Consulting Group
SQL Joins and Data ManipulationMedium

Tests SQL join understanding and correct reasoning for backend data manipulation.

JoinsdockersqlThe Boston Consulting Group

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

Calculate daily rolling 30-day active users from a BCG event log using CTEs, date intervals, and distinct aggregation.

Window FunctionsDate FunctionsRunning TotalsAnthropicAtlassianThe Boston Consulting Group
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
SQL Ranking by SalaryEasy
Practice
Practice drill

Join employee and salary data, then rank employees within each Intuit product company using a PostgreSQL window function.

JoinssqlAggregationsIntuit
The finish line: interview-readyComplete all 45 questions plus 3 hands-on drills to finish this plan.