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Prep plan
Updated weekly · Last refresh Sep 9

Kyndryl Data Engineer Interview Questions

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

28questions
~4htotal time
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1
PipelinesStart here. 7 questions · ~57 min
How Transformers WorkMedium

Assesses your foundational understanding of transformer architectures and core mechanisms.

transformersKyndryl
Large-Scale Data ProcessingHard

Tests your strategies for scaling compute, storage, and orchestration for enterprise-grade data workloads.

data handlingCloudKyndryl
GCP Services for Data PipelinesMedium

Evaluates your knowledge of GCP data services and how you apply them in real pipeline work.

cloud servicesKyndryl
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2
Coding3 questions · ~24 min
Stream a Large CSV in PythonHard

Tests your ability to design memory-efficient data ingestion strategies in Python.

memory managementpythonKyndryl
Massive Matrix ComputationHard

Tests your ability to design memory-efficient algorithms and manage compute constraints for large workloads.

memory managementsparkKyndryl
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3
SQL & Data Manipulation4 questions + 3 drills · ~62 min
SQL Joins in PipelinesMedium

Tests your SQL correctness and your ability to choose join strategies that fit pipeline requirements.

Joinsdata pipelinessqlKyndryl
Optimizing Slow SQL QueriesMedium

Tests your performance tuning skills using query plans, indexing, and data modeling techniques.

performancequery optimizationsqlKyndryl
SQL and Python Data WorkMedium
Practice
Practice drill

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

JoinsData ManipulationsqlAdobe
SQL, Power BI, and Python BasicsMedium
Practice
Practice drill

Calculate completed order totals per customer using a join, aggregation, NULL handling, and spending classification.

JoinsCase WhensqlAccenture
SQL Bookstore Schema PracticeEasy
Practice
Practice drill

Use a CTE, joins, and distinct aggregates to calculate Meta Logistics bookstore payment metrics.

sql queriessqlpythonMeta Logistics
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4
Behavioral & Leadership13 questions · ~105 min
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5
More topics1 question · ~8 min
Comparing Cloud Storage OptionsMedium

Tests your ability to select appropriate storage based on access patterns, cost, and operational needs.

cloud infrastructuretechnical knowledgeKyndryl
The finish line: interview-readyComplete all 28 questions plus 3 hands-on drills to finish this plan.