Lead Backend Developer Interview Questions

6,284 lead backend developer interview questions shared by candidates

Given a master node and 100s of worker node, how will u check if every node is alive every second, u have to consume as minimum resource and Network bandwidth as possible? how does exceptions in go work? what do u know about API security? DSA tree question(moderate level)
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Backend Developer

Interviewed at TestMu AI

3.8
Sep 9, 2021

Given a master node and 100s of worker node, how will u check if every node is alive every second, u have to consume as minimum resource and Network bandwidth as possible? how does exceptions in go work? what do u know about API security? DSA tree question(moderate level)

You are given an array prices where prices[i] is the price of a given stock on the ith day. You want to maximize your profit by choosing a single day to buy one stock and choosing a different day in the future to sell that stock. Return the maximum profit you can achieve from this transaction. If you cannot achieve any profit, return 0.
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Backend Developer

Interviewed at Upwind

4.2
Jan 5, 2025

You are given an array prices where prices[i] is the price of a given stock on the ith day. You want to maximize your profit by choosing a single day to buy one stock and choosing a different day in the future to sell that stock. Return the maximum profit you can achieve from this transaction. If you cannot achieve any profit, return 0.

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