Role

Backend Developer

Real interview questions with expert answers, plain-English explanations, and practical examples. (55 questions)

VMware Backend Developer Data Structures & Algorithms

A VMware backend service handles highly interconnected data, requiring efficient traversal and relationship queries. How would a Backend Developer choose and implement optimal data structures to manage these complex relationships?

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ServiceNow Backend Developer Databases

A ServiceNow backend service manages critical customer data. How would you design a robust database migration strategy to introduce schema changes without downtime or data loss?

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ServiceNow Backend Developer Caching

Given a high-traffic ServiceNow microservice, how would a Backend Developer design a caching strategy to reduce database load and improve response times, specifically considering cache invalidation and consistency?

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VMware Backend Developer API Design

How would a VMware Backend Developer design a scalable and resilient API for a multi-tenant SaaS platform?

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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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