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Prep plan
Updated weekly · Last refresh Aug 30

Simon AI Data Engineer Interview Questions

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

28questions
~6htotal time
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1
CodingStart here. 9 questions · ~111 min
Longest Substring Without RepeatsMedium
Practice

Find the longest substring with all unique characters using a sliding window.

Hash TablesStringsTwo PointersSimon AI
Two Sum with TargetEasy
Practice

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysStringsSimon AI
Merge K Sorted Linked ListsMedium
Practice

Problem At Meta, imagine multiple pre-sorted event streams need to be combined into one ordered feed. Given k sorted singly linked lists, merge them into o...

Linked ListsSortingHeapSimon AI
Wildcard Substring IndexMedium
Practice

Find the first text index matching a pattern with one single-character wildcard using prefix and suffix KMP searches.

Simon AI
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2
Pipelines13 questions · ~160 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualitySimon AI
ETL vs ELT Trade-offsEasy

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

ETLELTData ModelingSimon AI
Data Quality and Schema EvolutionMedium

Approach for handling schema changes and data quality checks in a high-volume data lake pipeline.

schema evolutionData ModelingQualitySimon AI
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3
Behavioral & Leadership6 questions · ~74 min
Solving a Challenging Data ProblemMedium

Tests problem-solving, ownership, and communication about complex data work.

CommunicationProblem SolvingOwnershipSimon AI
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The finish line: interview-readyComplete all 28 questions to finish this plan.