Role

Backend Developer

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

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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Salesforce Backend Developer Databases

When would a backend developer choose different database isolation levels for a Salesforce application, and what are the trade-offs?

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Salesforce Backend Developer Concurrency

Explain consistency models beyond eventual consistency in distributed systems, and how would a backend developer choose one for a critical microservice?

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ServiceNow Backend Developer Concurrency

Beyond Mutexes: How do semaphores differ from mutexes, and when would a backend developer choose one over the other for resource management?

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Amazon Backend Developer System Design

How would you design a distributed ride-sharing service like Uber or Lyft?

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Netflix Backend Developer API Design

How does Netflix design its APIs for high scalability and resilience in a microservices architecture?

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Tech Mahindra Backend Developer Concurrency

How do distributed locks work in a microservices environment, and what are their challenges?

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