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Updated weekly · Last refresh Nov 6

Bca Europe Software Engineer Interview Questions

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

21questions
~4htotal time
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1
CodingStart here. 7 questions · ~74 min
Longest Substring Without RepeatsMedium
Practice

Find the longest substring with all unique characters using a sliding window.

Hash TablesStringsTwo PointersBca Europe
Compare Stack and Queue OperationsEasy

Explain how stacks and queues differ in ordering, operations, implementations, and common use cases.

StackQueueArraysBca Europe
Programming Languages and RationaleEasy
Practice

Format a concise response listing programming languages and the reason for comfort with each.

Codingclean codeMathBca Europe
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2
Execution3 questions · ~32 min
Design a Scalable ApplicationEasy

Explain how you would design a scalable application, including trade-offs, risks, stakeholder needs, and how you define success.

Trade-offsRisk AssessmentScope ManagementBca Europe
Balancing Speed Quality and ScopeHard

Describe a time you had to choose between speed, quality, and scope, and how you aligned stakeholders around the trade-off.

Trade-offsRisk AssessmentScope ManagementBca Europe
End-to-End Performance DebuggingMedium

Tests end-to-end troubleshooting, measurement, and validation of performance fixes in a production web app.

Trade-offsSuccess CriteriaRisk AssessmentBca Europe

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3
Behavioral & Leadership9 questions · ~96 min
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4
More topics2 questions · ~21 min
SQL and Data ManipulationMedium

Evaluates your ability to apply SQL to real-world data and communicate technical decisions.

sqlBca Europe
Importance of Version ControlEasy

Tests your understanding of collaboration, traceability, and safe change management.

CommunicationOwnershipBca Europe
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Handling Missing DataEasy
Practice
Practice drill

Replace missing sales fields with defined defaults and return a consistently ordered dataset.

missing valuesdata cleaningnull handlingUniversity of MinnesotaThe Home DepotNationwide
Analyze Customer Purchase Trends with Window FunctionsEasy
Practice
Practice drill

Calculate the monthly spending trends for customers using window functions and joins.

The Home DepotAvisoHewlett Packard Enterprise
Database Indexing Trade-offsHard
Practice
Practice drill

Compare PostgreSQL index strategies by read latency, write overhead, storage size, and an overall cost score.

Trade-offsdatabase optimizationdatabase managementHHostinger InternationalAAkinaPPorch Group
The finish line: interview-readyComplete all 21 questions plus 3 hands-on drills to finish this plan.