Lead Software Engineer Interview Questions

3,712 lead software engineer interview questions shared by candidates

1. Solid principles 2. Singleton pattern, in case if we pass hashmap- map can be altered and it will destroy singleton, how to handle that 3. How to create threads 4. How to execute 10 threads at a time 5. How to create global exception class 6. When to use arraylist and linkedlist 7. Completable in java 8 8. What's changed in hashmap in java 8 9. Deep copying and shallow copying 10. Use of volatile keyword in java 11. Programming a. String ="I love programming" -we need to count the length and arrange it in desc but that should be return as string using stream api b. List in = Arrays.asList(1,3,7,0,6,7,8,0); need to sort this and put only 0 at first and let the remaining stay as it is using stream API
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Java Lead Developer

Interviewed at Hexaware Technologies

3.7
May 23, 2025

1. Solid principles 2. Singleton pattern, in case if we pass hashmap- map can be altered and it will destroy singleton, how to handle that 3. How to create threads 4. How to execute 10 threads at a time 5. How to create global exception class 6. When to use arraylist and linkedlist 7. Completable in java 8 8. What's changed in hashmap in java 8 9. Deep copying and shallow copying 10. Use of volatile keyword in java 11. Programming a. String ="I love programming" -we need to count the length and arrange it in desc but that should be return as string using stream api b. List in = Arrays.asList(1,3,7,0,6,7,8,0); need to sort this and put only 0 at first and let the remaining stay as it is using stream API

Round 1 : Regarding performance, accessibility, state management, CSR, SSR , SSG, security Round 2: The Lead engineer wanted mean to open a create a new react project. He expected that I knew all the commands and shouldn't take any help from google. It was the most absurd interview I have ever attended. The interviewer was Sunil something and was very rude. He was asking questions you wont even ask freshers. It was like he was showing off his knowledge in React.
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Lead Front End Developer

Interviewed at Publicis Sapient

3.4
Sep 23, 2022

Round 1 : Regarding performance, accessibility, state management, CSR, SSR , SSG, security Round 2: The Lead engineer wanted mean to open a create a new react project. He expected that I knew all the commands and shouldn't take any help from google. It was the most absurd interview I have ever attended. The interviewer was Sunil something and was very rude. He was asking questions you wont even ask freshers. It was like he was showing off his knowledge in React.

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