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Uber Backend Engineer Interview Questions

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

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Optimizing Time and Space ComplexityEasy

Explain how to improve coding solutions by reducing time complexity first, then balancing space trade-offs.

Hash TablesArraysGreedy
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Tree, Graph, Heap, DP Problems
Hard

Evaluates problem-solving breadth across common backend interview algorithm topics.

Dynamic ProgrammingTreesGraphs
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BFS and DFS for Routing
Medium

Tests ability to apply BFS and DFS to practical routing and traversal problems.

dfsbfsGraphs
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Capitalize Identified Substrings
Medium

Tests string matching and efficient substring replacement logic.

string manipulationAlgorithms
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Payment Processing ConsistencyHard

Assesses ability to design reliable distributed payment systems with strong consistency guarantees.

consistencyfault tolerance
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High-Concurrency Distributed Systems
Hard

Evaluates strategies for correctness, throughput, and contention control in distributed services.

distributed systemsscalabilityconcurrency
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Real-Time Order Notification System
Hard

Tests system design for low-latency notifications, delivery semantics, and scalability.

architecture
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Adapting to Shifting Priorities
Easy

Tests adaptability under changing priorities, with emphasis on reprioritization, ambiguity management, and stakeholder communication.

OwnershipDealing With AmbiguityPrioritization
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