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Updated weekly · Last refresh Sep 22

LinkedIn Mobile Engineer Interview Questions

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

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1
CodingStart here. 6 questions · ~77 min
Shortest Path in a GraphMedium
Practice

Find the minimum-cost path between two nodes in a weighted graph using Dijkstra's algorithm.

QueueSearchingGraphsLinkedIn
Reverse Linked List In-PlaceEasy
Practice
Recently asked

Reverse a singly linked list in place by rewiring next pointers in one pass.

Linked ListsAlgorithmsLinkedIn
Designing the LinkedIn FeedMedium

Evaluates system design thinking for a core LinkedIn product experience.

leetcodedesignLinkedIn
Practicing LeetCode-Style CodingEasy

Assesses how you translate generic practice into job-relevant problem solving.

basic questionsleetcodeLinkedIn
BFS and DFS on TreesEasy

Tests understanding of BFS and DFS traversal approaches on trees.

dfsbfsLinkedIn
Breadth-First Search on TreeMedium

Tests traversal strategy, queue usage, and handling tree structures correctly.

bfsTreesAlgorithmsLinkedIn

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2
More topics2 questions · ~26 min
Introducing a New Architecture PatternMedium

Tests leadership, communication, and decision-making when evolving system architecture.

LeadershipteamworkarchitectureLinkedIn
Finding a Cycle in Linked ListMedium

Tests reasoning about pointer-based cycle detection and edge cases.

AlgorithmsLinkedIn
The finish line: interview-readyComplete all 8 questions to finish this plan.