Barclays Site Reliability Engineer Interview Questions

The questions to prepare for a Barclays Site Reliability Engineer interview. Questions from real interview reports rank first. Updated weekly.

Evaluates your practical knowledge of Linux tooling for performance and incident diagnosis.

Troubleshooting kdb+ Bottlenecks

Medium

Assesses your diagnostic approach for performance issues in Barclays data systems.

Performance TuningTroubleshooting

Barclays

High Availability and Consistency

Medium

Evaluates your design tradeoffs for HA and consistency in distributed services.

distributed systemshigh availabilitydata consistency

Barclays

Understanding kdb Architecture

Hard

Tests your deep understanding of kdb architecture and your ability to build targeted diagnostic scripts.

scripting

Barclays

Optimizing SQL at Scale

Medium

Tests your ability to improve database performance and reliability for large workloads.

query optimizationsql

Barclays

Step-by-Step Root Cause Analysis

Medium

Assesses your structured RCA process for production outages.

root cause analysisTroubleshooting

Barclays

Resolving Deployment Strategy Conflict

Medium

Tests conflict resolution in deployment decisions, including influence, risk trade-offs, and ownership of the final outcome.

Conflict ResolutionStakeholder Managementcollaboration

Barclays

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Evaluates tradeoff thinking between delivery speed and reliability in production systems.

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