Backend Software Interview Questions

15,496 backend software interview questions shared by candidates

Technical Screening: 1. JVM - Working and Heap 2. Datastructures - Arrays, HashTable, Stack, Queues 3. Time and Space complexity 4. Process and thread - difference and relation 5. Deadlock and concurrency 6. SOLID principles 7. Composition vs Inheritance - Relationship and when to use what 8. CICD - Process 9. Deployment Strategies 10. Minimizing bugs in production 11. Observability and logging - basics like what metrics to check etc. 12. Difference, advantages and disadvantages of Monolith and microservice archs 13. Avoiding cascading failures - Circuit breaker 14. Domain Driven Design 15. Sql vs NoSql - their advantages and disadvantage, when to use what 16. ACID 17. CAP theorem 18. Database scalability - vertical and horizontal scaling
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Backend Developer

Interviewed at Glovo

3.4
May 13, 2020

Technical Screening: 1. JVM - Working and Heap 2. Datastructures - Arrays, HashTable, Stack, Queues 3. Time and Space complexity 4. Process and thread - difference and relation 5. Deadlock and concurrency 6. SOLID principles 7. Composition vs Inheritance - Relationship and when to use what 8. CICD - Process 9. Deployment Strategies 10. Minimizing bugs in production 11. Observability and logging - basics like what metrics to check etc. 12. Difference, advantages and disadvantages of Monolith and microservice archs 13. Avoiding cascading failures - Circuit breaker 14. Domain Driven Design 15. Sql vs NoSql - their advantages and disadvantage, when to use what 16. ACID 17. CAP theorem 18. Database scalability - vertical and horizontal scaling

Round2 (Technical 2): This interview supposed to be tougher than the previous one. The interviewer asked me about java fundamental questions. Notes: Look into topics like thread, garbage collection, collections framework. After that, he asked me to design LRU Cache. Was able to do that. Then asked me to implement Priority Queue. Also did that. And that was all for this round.
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Backend Engineer

Interviewed at CleverTap

4.3
Nov 13, 2024

Round2 (Technical 2): This interview supposed to be tougher than the previous one. The interviewer asked me about java fundamental questions. Notes: Look into topics like thread, garbage collection, collections framework. After that, he asked me to design LRU Cache. Was able to do that. Then asked me to implement Priority Queue. Also did that. And that was all for this round.

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