Top 42
Prep plan
Updated weekly · Last refresh Oct 17

Devoteam Data Engineer Interview Questions

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

42questions
~6htotal time
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1
SQL & Data ManipulationStart here. 3 questions + 1 drill · ~36 min
Second Highest Without AggregatesHard
Practice

Find the second highest salary in each department without using aggregate functions.

SubqueriesRankingSelf-JoinsDevoteam
Optimizing a Slow QueryMedium
Practice

Rewrite a slow PostgreSQL reporting query to reduce scanned rows, avoid join multiplication, and return accurate monthly site metrics.

Subqueriesdatabase optimizationJoinsDevoteam
Top Customers by Sales RevenueEasy
Practice
Practice drill

Use GROUP BY and SUM to rank the top 10 customers by total revenue from a single sales table.

RankingGroup ByAggregationsHousecall ProEquifaxXYZ
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2
Pipelines13 questions · ~113 min
Monitor Customer Integration PipelinesHard

Design a monitoring process for customer integration pipelines that detects failures, delays, and data quality issues quickly.

SchedulingOrchestrationQualityDevoteam
Build a Reporting Star SchemaHard

Build and maintain a reporting model for dashboards using dimensional design, ELT, data quality checks, and scheduled transformations.

ETLData ModelingQualityDevoteam
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3
Coding3 questions · ~26 min
Python Data Cleaning FunctionMedium

Assesses your ability to implement robust data cleaning logic in Python.

Hash TablesArraysStringsDevoteam
Data Manipulation Coding ChallengeMedium

Evaluates your practical coding skills for data manipulation and algorithms.

Hash TablesArraysSortingDevoteam
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4
Behavioral & Leadership20 questions · ~173 min
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5
More topics3 questions · ~26 min
Medallion Architecture in FabricHard

Evaluates data architecture design skills in modern lakehouse platforms relevant to Devoteam.

medallion architectureDevoteam
Structured vs Unstructured DataEasy

Evaluates understanding of data types and applicability in data engineering projects.

data engineeringDevoteam
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The finish line: interview-readyComplete all 42 questions plus 1 hands-on drill to finish this plan.