Top 41
Prep plan
Updated weekly · Last refresh Oct 17

Meta IT Mobile Engineer Interview Questions

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

41questions
~8htotal time
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1
CodingStart here. 24 questions · ~287 min
Array Intersection BasicsEasy
Practice

Find distinct values shared by two arrays using a hash set while preserving the first array's order.

Hash TablesArraysMeta IT
Intersection With DuplicatesEasy
Practice

Compute the multiset intersection of two arrays while preserving the first array's order using frequency counting.

Hash TablesArraysTwo PointersMeta IT
Check Whether Two Strings Are AnagramsEasy
Practice

Use a hash map of character counts to determine whether two strings are anagrams in linear time.

Hash TablesStringsSortingMeta IT
Detect Palindrome in StringEasy
Practice

Check whether a string is a palindrome using string comparison or a two-pointer scan.

StringsTwo PointersMeta IT
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2
System Design3 questions · ~36 min
Modular Mobile ArchitectureHard

Tests your ability to design modular architectures that enable parallel feature development.

mobile designMeta IT
REST APIs and Offline SyncMedium

Evaluates how you integrate REST APIs and manage offline sync behavior reliably.

api integrationmobile architectureoffline syncMeta IT
Navigation and Routing LayersMedium

Assesses your design for maintainable navigation and routing across cross-platform apps.

cross-platformnavigationMeta IT

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3
Behavioral & Leadership14 questions · ~167 min
Optimizing a Production Mobile BottleneckEasy

Tests ownership and prioritization in fixing a real mobile production performance issue, with emphasis on diagnosis, trade-offs, and measurable user impact.

CommunicationOwnershipPrioritizationMeta IT
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