Top 18
Prep plan
Updated weekly · Last refresh Aug 30

Dexcom Mobile Engineer Interview Questions

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

18questions
~3htotal time
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1
CodingStart here. 8 questions · ~67 min
Optimize App Performance with CachesMedium

Explain how to use caching, batching, and lazy loading to improve app performance.

Hash TablesArraysHeapDexcom
Swift vs Objective-C DifferencesEasy

Compare Swift and Objective-C across syntax, safety, interoperability, and runtime behavior.

RecursionHash TablesArraysDexcom
Implement a RESTful APIMedium

Tests understanding of networking, request/response handling, and API integration on mobile.

Hash TablesQueueStringsDexcom
Sorting or Searching AlgorithmMedium

Tests algorithmic problem-solving and efficient implementation skills.

ArraysSearchingSortingDexcom
Location Tracking With MapsMedium

Tests ability to design and implement location services and map rendering in a mobile app.

QueueMatrixGraphsDexcom
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2
Behavioral & Leadership8 questions · ~67 min
Prioritizing Across Competing Client ProjectsEasy

Tests prioritization under pressure across multiple projects, including trade-off judgment, stakeholder communication, and ownership of outcomes.

OwnershipPrioritizationDexcom
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3
More topics2 questions · ~17 min
Onboarding for Health UsersMedium

Tests product sense for user flows and usability for sensitive, first-time health experiences.

User SegmentsUser NeedsMVPDexcom
Real-Time Updates App DesignMedium

Tests product thinking and technical design for streaming updates and responsive UI.

User NeedsUse CasesProduct VisionDexcom

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