Role

Backend Developer

Real interview questions with expert answers, plain-English explanations, and practical examples. (41 questions)

Wipro Backend Developer Concurrency

A Wipro backend service experiences high concurrency during peak loads. How would a backend developer design and implement a robust strategy to handle concurrent requests and shared resource access, ensuring data consistency and preventing common concurrency issues?

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LinkedIn Backend Developer Data Structures & Algorithms

When designing a social network feed, how would a backend developer at LinkedIn choose and implement data structures for efficient storage and retrieval of connections and posts?

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Accenture Backend Developer Databases

How would a backend developer design a flexible and scalable database schema for a multi-tenant SaaS application, considering data isolation and efficient querying?

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Airbnb Backend Developer Concurrency

How would an Airbnb backend developer design a system to manage concurrent booking requests for a single property, preventing overbooking and ensuring data consistency?

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PayPal Backend Developer Concurrency

How would a PayPal Backend Developer design a system to prevent race conditions and ensure atomicity during concurrent payment transactions?

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Uber Backend Developer Concurrency

How would an Uber backend developer handle concurrent updates to a shared resource, like a rider’s wallet balance, in a high-throughput microservice environment?

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ServiceNow Backend Developer System Design

How would you design a highly scalable and fault-tolerant system for real-time task management at ServiceNow?

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Deloitte Backend Developer Caching

A critical Deloitte backend service is experiencing database load due to frequent data access. How would a backend developer design and implement a distributed caching strategy to alleviate this, ensuring data consistency and optimal performance?

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ServiceNow Backend Developer Message Queues

How do you handle message processing failures and ensure data integrity using dead letter queues and retry mechanisms?

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Atlassian Backend Developer Databases

How would a backend developer design a database connection pooling strategy for a high-traffic microservice?

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