Top 33
Prep plan
Updated weekly · Last refresh Oct 17

Grindr Software Engineer Interview Questions

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

33questions
~5htotal time
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1
CodingStart here. 18 questions · ~178 min
Longest Unique Substring in EnoMedium
Practice

Use a sliding window and hash map to find the longest substring without repeated characters in a string.

Hash TablesStringsTwo PointersGrindr
Merge Overlapping IntervalsEasy
Practice

Merge overlapping intervals in a list of intervals.

ArraysSearchingSortingGrindr
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2
System Design3 questions · ~30 min
Design Facebook Feed RecommenderHard

Design the end-to-end ML system for Facebook Feed recommendation, from retrieval and ranking to serving, evaluation, monitoring, and failure handling.

ML RankingRetrievalRecommendation SystemsGrindr
Threading Model on iOSMedium

Tests your understanding of concurrency concepts and how they map to iOS execution.

threadingGrindr
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3
Execution4 questions · ~40 min
Real-Time Messaging System DesignMedium

Tests your ability to design low-latency messaging with scalability, reliability, and data consistency.

Trade-offsRisk AssessmentScope ManagementGrindr
Handle Sudden User GrowthHard

Tests your scalability planning, capacity management, and resilience strategies for rapid growth.

Launch PlanningTrade-offsRisk AssessmentGrindr
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4
Behavioral & Leadership6 questions · ~59 min
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5
More topics2 questions · ~20 min
Android Activity LifecycleEasy

Tests your understanding of Android component lifecycles and state management.

Stakeholder ManagementCommunicationOwnershipGrindr
Data Integrity in Distributed SystemsHard

Tests understanding of consistency, transactions, failure modes, and integrity guarantees.

IdempotencyDependenciesQualityGrindr
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