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Updated weekly · Last refresh Sep 25
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PayPay India Data Engineer Interview Questions

The questions to prepare for a PayPay India Data Engineer interview. Questions from real interview reports rank first. Updated daily.

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1
CodingStart here. 3 questions · ~24 min
Mimic Apache Hudi BehaviorMedium

Assesses understanding of Hudi semantics and ability to implement them in Python.

data processingpythonPPayPay India
Optimize Python for Big DataMedium

Tests performance engineering skills for large-scale data processing in Python.

large datasetspythonoptimizationPPayPay India
Python DataFrame Ingestion HandlingMedium

Evaluates practical DataFrame manipulation skills for ingestion-time data shaping.

Data ManipulationpythonPPayPay India
2
More topics4 questions · ~32 min
Spark Job Stages and TasksMedium

Assesses understanding of Spark execution model and mapping concepts to code behavior.

sparkPPayPay India
SQL for Business AggregationsMedium

Assesses SQL proficiency for real business analytics transformations.

sqlPPayPay India
Spark Out of Memory FixesHard

Evaluates troubleshooting and mitigation strategies for Spark memory pressure.

sparkPPayPay India
End-to-End Data Project ImpactMedium

Assesses problem-solving, ownership, and leadership in complex delivery scenarios.

experiencePPayPay India

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL and Python Data WorkMedium
Practice
Practice drill

Use a CTE, join, and conditional aggregation to summarize valid monthly user activity.

JoinsData ManipulationsqlAdobe
SQL With Light PythonMedium
Practice
Practice drill

Explain how SQL diagnosed a data problem and how Python complemented the investigation or remediation.

Data Manipulationsqldata validationKikoff
SQL KPI Measurement With PythonMedium
Practice
Practice drill

Calculate monthly transaction KPIs by risk tier, including label coverage, suspicious rates, and period-over-period success changes.

sqldata validationpythonRevolut
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