Foursquare Mobile Engineer Interview Questions

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

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CodingStart here. 11 questions · ~120 min

Find Check-In Time GapsMedium

Practice

Sort and scan check-in intervals to return every uncovered time gap in a Foursquare activity timeline.

Algorithms

Foursquare

Reverse a Linked ListEasy

Practice

Reverse a singly linked list in place using pointer manipulation.

RecursionLinked Lists

Foursquare

Two Sum ProblemEasy

Practice

Find two indices in an array whose values add up to a target using a hash map.

Hash TablesArraysTwo Pointers

Foursquare

Design a Mobile API CacheMedium

Explain how to structure API integration in a mobile app using caching, retries, request deduplication, and offline-aware data flow.

Hash TablesArraysStrings

Foursquare

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Behavioral & Leadership8 questions · ~87 min

Owning a High-Stakes Risk ProjectEasy

Tests ownership through a past project example, with emphasis on prioritization, stakeholder management, and data-driven decision-making.

backgroundimpactproject walkthrough

Foursquare

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More topics3 questions · ~33 min

Find Pain Points from FeedbackMedium

Use customer feedback to identify the biggest pain points in the user journey.

User ResearchUser NeedsPain Points

Foursquare

End-to-End Feature DeliveryHard

Tests product thinking, execution planning, and delivery discipline from idea to release.

Stakeholder ManagementOwnershipDealing With Ambiguity

Foursquare

Using Location for EngagementMedium

Tests product sense for geospatial data and ability to connect data to user value.

User NeedsValue PropositionUse Cases

Foursquare

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