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Updated weekly · Last refresh Oct 17

Barclays Full Stack Engineer Interview Questions

The questions to prepare for a Barclays Full Stack Engineer interview. Questions from real interview reports rank first. Updated daily.

12questions
~2htotal time
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1
Technical FundamentalsStart here. 9 questions · ~72 min
Lifecycle of a Spring Boot BeanMedium

Assesses knowledge of Spring Boot bean lifecycle and practical usage.

javaspring bootBarclays
Securing a REST API with Spring BootHard

Tests security practices and threat mitigation for REST services.

restspring bootapi securityBarclays
Inheritance vs Composition in Project ArchitectureMedium

Tests architectural thinking and design trade-offs in large codebases within Barclays.

architectureBarclays
Memory Management in JavaMedium

Tests performance tuning and memory optimization practices.

memory managementjavaoptimizationBarclays
Spring Boot vs Traditional SpringMedium

Assesses understanding of Spring ecosystem benefits in real-world Barclays contexts.

javaspring bootBarclays
Pillars of OOP with Real-World ExamplesMedium

Assesses depth of OOP concepts and ability to relate them to Barclays work.

oopBarclays
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2
Behavioral & Leadership3 questions · ~24 min
Resolving Technical Conflict on ApproachMedium
Recently asked

Tests conflict resolution in technical disagreements, including communication, influence without authority, and ownership of the final outcome.

Conflict ResolutionStakeholder ManagementCommunicationBarclays
Relocation and Global TeamsMedium

Assesses collaboration across geographies and change readiness.

global teamsCommunicationrelocationBarclays
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