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Top 50 system architecture Interview Questions

The most frequently asked system architecture questions across all roles and companies, ranked by real interview frequency. Updated weekly.

50questions
~7htotal time
137companies covered
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1
System DesignStart here. 33 questions · ~264 min
Design a Low Latency Inference PlatformHard
Recently asked

Design a low latency ML inference platform for high-frequency online predictions with strict response times and evolving model features.

high-frequency requestslatencysystem architectureAnthropicMeta Power SolutionsXero
Design a RESTful APIHard
Recently asked

Tests API design fundamentals including contracts, scalability, and maintainability for KPMG systems.

api designsystem architectureKPMGStriveworksPalo Alto Networks
Low-Latency Messaging for HFTHard
Recently asked

Evaluates your system design choices for ultra-low latency and reliable data delivery.

system architectureLLSEG (London Stock Exchange Group)
Design a REST API SystemHard

Evaluates system design trade-offs and ability to implement a working API.

system architectureRedfin
Process vs ThreadMedium

Tests understanding of OS concepts relevant to concurrency and performance engineering.

system architectureconcurrencyHHyundai MOBIS AlabamaTTanlaCCypress G
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2
Behavioral & Leadership8 questions · ~64 min
Driving HSM Adoption Under AmbiguityMedium

Tests ownership, influence without authority, and leading through ambiguity in a security architecture decision around isolated cryptographic operations.

hardware securitycryptographysystem architectureLucid Motors
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3
Execution4 questions · ~32 min
Real-Time Sensor Ingestion ArchitectureHard

Tests real-time system design, throughput, and latency trade-offs for high-volume data pipelines.

performance optimizationsystem architectureFreeform
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4
More topics5 questions · ~40 min
Presenting Pipeline Architecture ClearlyMedium

Explain how you would document and present a pipeline architecture so non-technical stakeholders understand flow, risks, and operational impact.

Communicationsystem architecturedocumentationMolexAAHU TechnologyNYU (New York University)
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