Skip to contentSkip to footer

Senior Backend Engineer Interview Questions

Salaries
Interviews

2,047 senior backend engineer interview questions shared by candidates

The interview process consisted of the following: * An initial screening chat * A fairly accessible coding question * A much more involved take-home system design task, followed-by interview * A final on-site afternoon with culture-type interviews *
avatar

Senior Backend Engineer

Interviewed at Hived

3.6★
Dec 18, 2025

The interview process consisted of the following: * An initial screening chat * A fairly accessible coding question * A much more involved take-home system design task, followed-by interview * A final on-site afternoon with culture-type interviews *

Design a system that tracks files stored in S3. Given two API endpoints—one that lists the files and another that provides details such as file size—design a system that counts the total number of files and calculates their combined size.
avatar

Senior Backend Engineer

Interviewed at Cyera

4.5★
Mar 8, 2025

Design a system that tracks files stored in S3. Given two API endpoints—one that lists the files and another that provides details such as file size—design a system that counts the total number of files and calculates their combined size.

Check if string contains the exact same number of repetitions of every character. I.e. "aabb" - true, "aabbc" - false. Then check if removing a single character from the string can make it valid, i.e. "aabbc" - true, "aaabbbcc" - false
avatar

Senior Backend Engineer

Interviewed at Bolt

3.4★
Dec 13, 2019

Check if string contains the exact same number of repetitions of every character. I.e. "aabb" - true, "aabbc" - false. Then check if removing a single character from the string can make it valid, i.e. "aabbc" - true, "aaabbbcc" - false

1. Initial call 2. 3 to 4hr long take home 3. 45min review call with CTO 4. 2hr long culture fit (? I didn't get to this stage). The take home is to build a concurrent FastAPI app, which integrates with 2 clients. They're looking for concurrency.
avatar

Senior Backend Engineer

Interviewed at Photoroom

4.6★
Mar 28, 2025

1. Initial call 2. 3 to 4hr long take home 3. 45min review call with CTO 4. 2hr long culture fit (? I didn't get to this stage). The take home is to build a concurrent FastAPI app, which integrates with 2 clients. They're looking for concurrency.

Viewing 1991 - 2000 interview questions

Glassdoor has 2,047 interview questions and reports from Senior backend engineer interviews. Prepare for your interview. Get hired. Love your job.