Top 33
Prep plan
Updated weekly · Last refresh Oct 17

Apexon Data Engineer Interview Questions

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

33questions
~5htotal time
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1
SQL & Data ManipulationStart here. 10 questions + 2 drills · ~104 min
2
Pipelines10 questions · ~84 min
ETL vs ELT Trade-offsEasy

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

ETLELTData ModelingApexon
ETL and dbt SetupMedium

Evaluates your practical knowledge of ETL environment configuration and dbt project setup.

ETLApexon
inferSchema Performance ImplicationsMedium

Evaluates your knowledge of Spark schema inference and its impact on performance.

sparkApexon
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3
Coding3 questions · ~25 min
Game Scheduling Constraint ProblemMedium

Evaluates your ability to reason about constraints and produce a correct solution for a scheduling problem.

Apexon
Flatten Nested JSON Logs in PythonMedium

Tests Python data parsing, robustness to messy logs, and practical handling of schema variability.

Hash TablesArraysStringsApexon
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4
Behavioral & Leadership10 questions · ~84 min
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The finish line: interview-readyComplete all 33 questions plus 2 hands-on drills to finish this plan.