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Updated weekly · Last refresh Aug 30

Factset Data Engineer Interview Questions

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

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1
SQL & Data ManipulationStart here. 12 questions + 2 drills · ~132 min
Second Highest Without AggregatesHard
Practice

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

SubqueriesRankingSelf-JoinsFactset
Difference Between WHERE and HAVING ClausesEasy

Explain the differences between WHERE and HAVING clauses in SQL and when to use each.

JoinsData WranglingAggregationsFactset
Group By vs Having in ReportingEasy

Explain how GROUP BY forms aggregates and HAVING filters aggregated results in a reporting scenario.

Group ByHavingAggregationsFactset
Autonomous vs Manual Drive TimeHard
Practice
Practice drill

Compute per-vehicle daily autonomous vs manual seconds from state-change logs using LEAD and conditional aggregation.

JoinsData WranglingGroup By
Top Customers by Net SalesMedium
Practice
Practice drill

Compute top 10 customers by net sales using joins and aggregations, ordering by revenue with deterministic tie-breaking.

SubqueriesJoinsData WranglingGain DigitalTCSZest AI
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2
Pipelines4 questions · ~37 min
Explain ETL in Data EngineeringEasy

Explain the ETL process, why it matters, and how it fits into a practical data pipeline.

ETLOrchestrationQualityFactset
Real-Time Dashboard Data PipelineMedium

Design a streaming pipeline that keeps dashboard data fresh and accurate for operational reporting.

InfrastructureStream ProcessingOrchestrationFactset
Backfill Without Duplicate RecordsHard

Approach for rerunning failed pipeline ranges and correcting data safely with idempotent writes and quality checks.

IdempotencyBackfillingQualityFactset
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3
Behavioral & Leadership6 questions · ~56 min
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4
More topics2 questions · ~19 min
Merging Dictionaries in PythonEasy
Practice

Merge two Macy's catalog dictionaries into a new dictionary, with values from the second dictionary overriding duplicate keys.

Hash TablesArraysStringsFactset
Exception Handling in CodeEasy

Tests your approach to robustness, error propagation, and maintainable failure handling.

RecursionStackFactset

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