People Tech Group Mobile Engineer Interview Questions

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

19questions

~3htotal time

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CodingStart here. 5 questions · ~41 min

Design an in-memory image cache and explain how to evict, downscale, and react to memory pressure.

Kotlin and Java InternalsHard

Tests your grasp of data structures, complexity, and practical implementation in Kotlin/Java.

Data Structures

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Explain ANR InternalsMedium

Evaluates your understanding of ANR causes, runtime behavior, and debugging approach.

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Technical Fundamentals4 questions · ~33 min

iOS Memory Management and LeaksHard

Tests your understanding of memory management internals and practical leak root causes.

memory leak

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Background to Foreground TransitionMedium

Tests your knowledge of lifecycle transitions and related system behaviors.

technical depth

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Behavioral & Leadership7 questions · ~57 min

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More topics3 questions · ~25 min

Tests your architectural judgment and ability to build testable, maintainable mobile codebases.

ANR, Crashes, and ThreadingHard

Tests your ability to diagnose responsiveness issues and understand OS and runtime interactions.

technical depth

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State Management Trade-offsMedium

Tests your ability to choose and justify state management approaches for maintainable mobile systems.

Trade-offsstate management

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