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Updated weekly · Last refresh Aug 30

Brillio Data Engineer Interview Questions

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

48questions
~7htotal time
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1
SQL & Data ManipulationStart here. 10 questions + 2 drills · ~107 min
Top Paid Per DepartmentEasy
Practice

Find the top 3 highest-paid employees in each department using window functions.

Window FunctionsRankingBrillio
OLTP vs OLAP Database DesignMedium

Explain OLTP vs OLAP designs, including schema shape, workload patterns, and when each is appropriate in a data platform.

financial dataperformanceData ModelingBrillio
Use Window FunctionsMedium

Tests SQL proficiency with window functions and correct partitioning and ordering.

Window FunctionsRankingRunning TotalsBrillio
Top Earners by Department with Window FunctionsEasy
Practice
Practice drill

Use ROW_NUMBER to return the five highest-paid active employees within each Brillio department.

Window Functionssql queryAggregationsBrillio
SQL: Third Highest SalaryMedium
Practice
Practice drill

Use DENSE_RANK and a department join to find all active Brillio employees tied at the third-highest distinct salary.

sqlBrillio
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2
Coding7 questions · ~61 min
Reverse a Linked List in PythonEasy
Practice

Reverse a singly linked list in place using an iterative pointer update or recursion.

RecursionLinked ListspointersBrillio
Implement BFS on a GraphHard

Tests your ability to implement core graph algorithms correctly and efficiently.

SearchingGraphsBrillio
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3
Pipelines20 questions · ~175 min
Star vs Snowflake SchemaEasy

Compare star and snowflake schemas in a warehouse pipeline, including structure and transformation trade-offs.

snowflake schemastar schemaData ModelingBrillio
Cloud Platform Experience for PipelinesMedium

Describe practical experience building pipelines on AWS, including orchestration, security, and data quality.

InfrastructureETLData ModelingBrillio
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityBrillio
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4
Behavioral & Leadership11 questions · ~96 min
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The finish line: interview-readyComplete all 48 questions plus 2 hands-on drills to finish this plan.