Top 16

Prep plan

Updated weekly · Last refresh Oct 17

Kharon Data Engineer Interview Questions

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

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SQL & Data ManipulationStart here. 5 questions + 2 drills · ~64 min

Transform Sample DataMedium

Evaluates your ability to transform raw data into a target schema using SQL and data manipulation techniques.

Kharon

Window Functions for Latest ChangeMedium

Practice

Use a window function to find the most recent risk rating change for each monitored organization.

Window FunctionsLag/LeadDate Functions

Kharon

Automate with Your Programming LanguageMedium

Practice

Practice drill

Count Citi workflow task types with more than one exception and show the latest review date.

Data ManipulationAutomationtechnical experience

Citi

Troubleshooting Data Integration IssuesMedium

Practice

Practice drill

Reconcile records from two systems and classify missing records, amount differences, and status discrepancies.

data integrationnull handlingJoins

Autodesk

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Pipelines5 questions · ~44 min

Airflow Pipeline to AWS S3Medium

Tests pipeline orchestration design for multi-API ingestion into AWS S3 in Kharon projects.

APIsOrchestrationairflow

Kharon

Schema Evolution for API ChangesMedium

Tests schema evolution strategy and resilience to breaking changes in external data feeds.

data integrationAPIsschema evolution

Kharon

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More topics6 questions · ~53 min

Fuzzy Dedup With PySparkHard

Tests PySpark implementation and fuzzy matching logic for entity resolution.

deduplicationData Structuresspark

Kharon

Fix Pandas Memory IssuesMedium

Tests performance troubleshooting and memory optimization strategies for large Pandas workloads.

performanceProblem Solvingtechnical experience

Kharon

Graph Modeling for Entity NetworksHard

Tests graph data modeling skills for complex entity and relationship networks relevant to Kharon clients.

technical experienceData Modeling

Kharon

Glue vs Self-Managed SparkMedium

Tests platform selection tradeoffs for ETL workloads in Kharon consulting environments.

Decision MakingETLdatabricks

Kharon