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Updated weekly · Last refresh Sep 24

Persistent Software Engineer Interview Questions

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

50questions
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1
SQL & Data ManipulationStart here. 8 questions · ~96 min
SQL Query: Highest SalaryEasy
Practice
Recently asked

Return the highest non-NULL salary from the employees table using a simple aggregate.

aggregationsqlAggregationsPersistent
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2
Coding9 questions · ~108 min
First 50 Prime NumbersEasy
Practice
Recently asked

Generate and return the first 50 prime numbers using trial division.

CodingBasic AlgorithmsAlgorithmsPersistent
Find Leaders in an ArrayMedium
Practice
Recently asked

Find array elements greater than every element to their right using a reverse scan.

ArraysArray ManipulationAlgorithmsPersistent
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3
Pipelines6 questions · ~72 min
Scalable Real-Time Data PipelineHard
Recently asked

Evaluates system design skills for building reliable, scalable real-time pipelines on GCP.

data processingPersistent
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4
System Design8 questions · ~96 min
System Design and OOP ArchitectureHard
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Assesses system design thinking and application of OOP principles under complexity.

oopPersistent
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5
Execution5 questions · ~60 min
Project Architecture WalkthroughMedium
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Assesses communication, ownership, and ability to explain architecture and tradeoffs.

architecturePersistent
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6
Technical Fundamentals5 questions · ~60 min
Microservices and Core ConceptsMedium
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Assesses foundational understanding of microservices and cloud concepts.

linuxCloudmicroservicesPersistent
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7
More topics9 questions · ~108 min
Java Multithreading with ExecutorServiceMedium
Recently asked

Tests multithreading implementation skills and awareness of concurrency concerns.

multithreadingdockerPersistent
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