Lead Engineer Interview Questions

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1. First Technical Round All basic JS, NodeJs question like event loop, OAuth , How JWT works, Asynchronous vs synchronous, Promises Async await , promises types, methods, some basic db question, program for char occurence . ( around 1 hr ) 1. Second Technical Round ( with senior architect and Project Manager ) All above question asked with cross question why this why that and asked deployment process in current project, some performance related questions, 2 DSA program, reduce vs map, why nodejs is synchronous (around 1.5 hr) 3. HR Round - Salary discussion
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Lead Software Engineer

Interviewed at Persistent Systems

4.1
Jul 4, 2025

1. First Technical Round All basic JS, NodeJs question like event loop, OAuth , How JWT works, Asynchronous vs synchronous, Promises Async await , promises types, methods, some basic db question, program for char occurence . ( around 1 hr ) 1. Second Technical Round ( with senior architect and Project Manager ) All above question asked with cross question why this why that and asked deployment process in current project, some performance related questions, 2 DSA program, reduce vs map, why nodejs is synchronous (around 1.5 hr) 3. HR Round - Salary discussion

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