Lead Backend Developer Interview Questions

15,496 lead backend developer interview questions shared by candidates

I needed to create queue management api with multiple different queue providers. I needed to have kafka service, sqs service and some local representation of queue management. during init of the app I needed to load correct service according to env variables.
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Senior Software Backend Engineer

Interviewed at Healthera

3.1
Dec 12, 2025

I needed to create queue management api with multiple different queue providers. I needed to have kafka service, sqs service and some local representation of queue management. during init of the app I needed to load correct service according to env variables.

1. Binary tree problems. 2. LinkedList problems. 3. Java OOPs concepts 4. Java Collections behavior 5. SQL Join Queries and complex Aggregate functions 6. String Problems 7. Recursion Algorithm problems. For all the questions, I was asked to write the code on paper. I don't know why they conduct interviews if they never wished to give the offer.
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Software Engineer, Backend

Interviewed at Visto

3.5
Oct 9, 2017

1. Binary tree problems. 2. LinkedList problems. 3. Java OOPs concepts 4. Java Collections behavior 5. SQL Join Queries and complex Aggregate functions 6. String Problems 7. Recursion Algorithm problems. For all the questions, I was asked to write the code on paper. I don't know why they conduct interviews if they never wished to give the offer.

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