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Updated weekly · Last refresh Aug 30

Redfin Software Engineer Interview Questions

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

50questions
~7htotal time
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1
CodingStart here. 33 questions · ~279 min
Top K Frequent ElementsEasy
Practice

Find the k most frequent elements in an array using counting and a heap or bucket strategy.

Hash Tablestop kHeapRedfin
Object-Oriented Game ModelMedium

Tests ability to design clean OOP models with responsibilities and interactions.

abstractiondesign patternsoopRedfin
Tetris Backend ArchitectureMedium

Tests system design at the class and interaction level for a real-time game loop.

abstractionoopRedfin
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2
System Design5 questions · ~42 min
Design a REST API SystemHard

Evaluates system design trade-offs and ability to implement a working API.

system architectureRedfin
System Architecture for Personal ProjectMedium

Assesses your ability to explain architecture decisions and component interactions.

system architectureRedfin
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3
Behavioral & Leadership9 questions · ~76 min
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4
More topics3 questions · ~25 min
MLS Ingestion and MappingHard

Tests data engineering design skills for transforming external MLS data into Redfin-ready models.

data integrationdesign systemRedfin
AWS Control Tower SetupMedium

Assesses your cloud security and governance experience with AWS Control Tower.

awsRedfin
Redfin MLS Ingestion and MappingMedium

Assesses data pipeline thinking and ability to model and transform MLS data for downstream use.

data ingestionRedfin
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