Lead Backend Developer Interview Questions

12,392 lead 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?

Techical interview about working expericence. Java related questions Microservices concepts Database: sql optimisation and deadlock solutions. Projct Management experience Leetcode type question: backtracking type, medium level
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Backend Developer

Interviewed at Huawei Technologies

3.4
Apr 11, 2025

Techical interview about working expericence. Java related questions Microservices concepts Database: sql optimisation and deadlock solutions. Projct Management experience Leetcode type question: backtracking type, medium level

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