Senior Backend Developer Interview Questions

1,045 senior backend developer interview questions shared by candidates

• Difference between array and ArrayList? • Difference between Set and List? • Set and List are classes or interfaces? • What is ArrayList’s parent class? • Is possible to use primitive types in arrays? • Is possible to use primitive types in List? • What is Generics? • Why is not possible to use primitive types in List? • What is Generics? • Why is not possible to use primitive types in Generics ? • Difference between StringBuilder and StringBuffer ? • How does Garbage Collector work? • What is the command to call GC execution? • Difference between memory heap and stack? • How do microsservices work? • How do we define security for application access?
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Senior Backend Software Engineer

Interviewed at InAllMedia

3.9
Aug 26, 2022

• Difference between array and ArrayList? • Difference between Set and List? • Set and List are classes or interfaces? • What is ArrayList’s parent class? • Is possible to use primitive types in arrays? • Is possible to use primitive types in List? • What is Generics? • Why is not possible to use primitive types in List? • What is Generics? • Why is not possible to use primitive types in Generics ? • Difference between StringBuilder and StringBuffer ? • How does Garbage Collector work? • What is the command to call GC execution? • Difference between memory heap and stack? • How do microsservices work? • How do we define security for application access?

SOLID principles, DDD, CQRS, Concurrent dictionaries in C#, but the most concentration was on Kafka (including some configuration details) and they were describing some specific scenarios with Kafka events and asking for my solutions in such use cases, including database transactions handling.
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Senior Backend .NET Developer

Interviewed at IronFX

4.2
Jan 26, 2023

SOLID principles, DDD, CQRS, Concurrent dictionaries in C#, but the most concentration was on Kafka (including some configuration details) and they were describing some specific scenarios with Kafka events and asking for my solutions in such use cases, including database transactions handling.

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