Skip to contentSkip to footer

Lead Backend Developer Interview Questions

Salaries
Interviews

9,308 lead backend developer interview questions shared by candidates

Implement an n-ary tree. With rules: 1. If the value is in the set, keep the node 2. If the value is a parent of the value in the set, keep it 3. If the value is a part of the final tree, keep it 4. Otherwise, delete the node
avatar

Backend Engineer

Interviewed at Nuna

2.7★
Sep 27, 2022

Implement an n-ary tree. With rules: 1. If the value is in the set, keep the node 2. If the value is a parent of the value in the set, keep it 3. If the value is a part of the final tree, keep it 4. Otherwise, delete the node

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.
avatar

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.
avatar

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.

Viewing 1161 - 1170 interview questions

Glassdoor has 9,308 interview questions and reports from Lead backend developer interviews. Prepare for your interview. Get hired. Love your job.