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Updated weekly · Last refresh Aug 30

Sun Life Financial Data Engineer Interview Questions

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

30questions
~4htotal time
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1
PipelinesStart here. 7 questions · ~60 min
Cloud Pipeline Data SecurityMedium

Key security considerations for a cloud data pipeline, from ingestion through storage, orchestration, and monitoring.

InfrastructureGovernanceETLSun Life Financial
Batch vs Real-Time PipelinesMedium

Decide when an operational workflow should run in batch versus real time, based on latency, complexity, reliability, and data quality needs.

Stream ProcessingBatch ProcessingOrchestrationSun Life Financial
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualitySun Life Financial
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2
SQL & Data Manipulation6 questions + 3 drills · ~82 min
Clustered vs Non-Clustered IndexesMedium

Explain how clustered and non-clustered indexes differ in storage, lookup behavior, and query performance.

JoinsData WranglingSun Life Financial
Debug a Complex SQL ViewHard

Tests advanced SQL debugging, performance analysis, and systematic troubleshooting.

SubqueriesPerformance TuningCTEsSun Life Financial
Optimize Slow SQL JoinsMedium

Tests SQL performance tuning skills and practical query optimization reasoning.

Performance TuningJoinsperformanceSun Life Financial
SQL Query for Third LargestMedium
Practice
Practice drill

Use a CTE, join, and RANK window function to find employees earning the third-highest distinct salary.

aggregationsqlSun Life FinancialCollabera
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
Resolve Conflicting Customer AttributesMedium
Practice
Practice drill

Use joins, CTEs, and row ranking to resolve conflicting customer profile values across ACME House systems.

JoinsData WranglingQualityRamsey SolutionsACME House
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3
Behavioral & Leadership15 questions · ~130 min
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4
More topics2 questions · ~17 min
Flatten Nested JSON PathsMedium
Practice

Flatten a deeply nested JSON-like object into path-value pairs using recursion and deterministic key construction.

Sun Life Financial
Fix Python Script Input BugsMedium

Tests your ability to debug Python logic and harden pipelines against bad inputs.

Data WranglingDebuggingpythonSun Life Financial

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