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Prep plan
Updated weekly · Last refresh Aug 30

SMX Data Engineer Interview Questions

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

20questions
~3htotal time
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1
PipelinesStart here. 11 questions · ~89 min
Visualization Tools for Analytics PipelinesEasy

Discuss which visualization tools fit different analytics pipeline needs, and why warehouse integration and monitoring matter.

ToolsData ModelingQualitySMX
ETL vs ELT Trade-offsEasy

Compare ETL and ELT, and explain when ELT is the better pipeline pattern.

ETLELTData ModelingSMX
Handling a Production Pipeline FailureEasy

Describe a real production pipeline failure, how you diagnosed and fixed it, and what changes you made around orchestration, quality, and reruns.

InfrastructureIdempotencyQualitySMX
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2
SQL & Data Manipulation7 questions + 3 drills · ~87 min
3
More topics2 questions · ~16 min
Transforming Datasets Between FormatsEasy

Tests your coding ability to implement reliable data transformations with correct schema handling.

Hash TablesArraysStringsSMX
Implementing Graph or Tree StructuresMedium

Tests your fundamentals of data structures and your ability to implement them correctly in code.

RecursionTreesGraphsSMX
The finish line: interview-readyComplete all 20 questions plus 3 hands-on drills to finish this plan.