Top 26
Prep plan
Updated weekly · Last refresh Sep 21

phData Software Engineer Interview Questions

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

26questions
~4htotal time
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1
CodingStart here. 11 questions · ~107 min
Validate As Before BsEasy
Practice

Scan a pipeline marker string and determine whether every A appears before every B.

string manipulationphData
Linked Lists vs ArraysEasy

Compare arrays and linked lists by memory layout, access cost, and update performance, and explain when each is the better choice.

Linked ListsArraysSearchingphData
Language Proficiency and Applied ImpactEasy

Explain which programming languages you know best, why, and how you used them to deliver maintainable and performant software.

Hash TablesStringsSortingphData
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2
Execution11 questions · ~107 min
Explain Technical Concepts to ClientsMedium

Describe how you explain a complex technical concept to a non-technical client while maintaining clarity, trust, and forward momentum.

Trade-offsRisk AssessmentphData
Handle a Difficult Team MemberMedium

Explain how you would handle a difficult team member while protecting delivery, relationships, and clarity across stakeholders.

Trade-offsRisk AssessmentDependenciesphData
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3
Pipelines3 questions · ~29 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityphData
Key Components for Real-Time ProcessingHard

Tests real-time system design knowledge and ability to identify essential pipeline components.

InfrastructureStream ProcessingOrchestrationphData
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4
More topics1 question · ~10 min
Optimizing SQL Query PerformanceMedium

Tests your ability to improve SQL performance using query and execution best practices.

Window FunctionsJoinsAggregationsphData
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 26 questions plus 3 hands-on drills to finish this plan.