Lead Backend Developer Interview Questions

Backend Developer

Interviewed at Own Company

3.8★

Jun 29, 2025

Google Maps navigation app design

Data structure and database questions

Associate Software Engineer - Backend

Interviewed at Toddle

4.2★

Feb 2, 2023

Encryption, Encoding, Authentication using JWT

Senior Backend Engineer

Interviewed at Monte Carlo Data

3.3★

Feb 14, 2025

Describe a time you had a conflict with a team member. How did you handle it?

Round 1: Coding Questions: Question 1: An easy string problem based on string matching. Question 2: A slightly tricky problem, "Zigzag Conversion" from LeetCode. Conceptual Questions: DBMS: Explain ACID properties. What is the difference between DROP, TRUNCATE, and DELETE commands? OOP: What is polymorphism? Explain static and dynamic binding. General: Difference between CHAR and VARCHAR. Round 2: Project Discussion: A detailed discussion about my projects. Coding Question: "LRU Cache" from LeetCode.

Nodejs,react,python related and project and was about my self

Backend Developer

Interviewed at ShyftLabs

4.2★

Jul 4, 2025

Asked about Project - He liked it Asked about expectation from life

Backend Developer

Interviewed at Toddle

4.2★

Dec 26, 2023

Write a query to mark is_deleted flag true for all duplicate emails from the table keeping the row with the smallest id as it is This was the users table : CREATE TABLE users ( id serial, email text, is_deleted boolean default false ); Bad experience. I couldn't solve it, but they dint ask any more questions

Backend Intern

Interviewed at Toddle

4.2★

May 20, 2024

What are the challenges I faced in the take-home assignment?

Backend Developer

Interviewed at Toddle

4.2★

Aug 5, 2025

They focused more on the logical thinking part rather than producing code.