Siemens Energy
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I applied via Referral and was interviewed in Feb 2023. There were 2 interview rounds.
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
Node.js is a runtime environment that allows you to run JavaScript code outside of a web browser.
Node.js is built on Chrome's V8 JavaScript engine.
It uses an event-driven, non-blocking I/O model.
Node.js is commonly used for building server-side applications.
It has a large ecosystem of open-source libraries and frameworks like Express.js.
Event loop is a mechanism that allows a program to efficiently handle multiple events or tasks concurrently.
Event loop is commonly used in asynchronous programming to manage tasks that may take varying amounts of time to complete.
It continuously checks for events or tasks in a queue and executes them one by one.
Event loop helps prevent blocking of the main thread by allowing non-blocking execution of tasks.
Popular exam...
Callback is a function passed as an argument to another function to be executed later, while a promise is an object representing the eventual completion or failure of an asynchronous operation.
Callback is used in traditional asynchronous programming, while promises are used in modern asynchronous programming.
Callbacks can lead to callback hell or pyramid of doom, while promises provide better readability and error hand...
Middlewares in Node.js are functions that have access to the request and response objects, and can modify or terminate the request-response cycle.
Middlewares are functions that are executed in the middle of the request-response cycle.
They can perform tasks like parsing request data, logging, authentication, etc.
Middlewares can be added using app.use() method in Express framework.
Example: app.use(bodyParser.json()) to p...
Event emitter is a pattern used to handle and respond to events in software development.
Event emitter is a design pattern commonly used in Node.js for handling events.
It allows objects to subscribe to events and be notified when those events occur.
Event emitter is often used for asynchronous programming and decoupling components.
Example: EventEmitter class in Node.js can be used to create custom events and handle them.
I applied via Recruitment Consultant and was interviewed in May 2017. There were 5 interview rounds.
What people are saying about Siemens Energy
I applied via Naukri.com and was interviewed before Jun 2021. There were 3 interview rounds.
I applied via Referral and was interviewed before Apr 2021. There was 1 interview round.
I applied via Naukri.com and was interviewed in Oct 2023. There was 1 interview round.
I applied via LinkedIn and was interviewed before Sep 2023. There was 1 interview round.
I appeared for an interview before Mar 2024, where I was asked the following questions.
I applied via Walk-in and was interviewed in May 2023. There were 2 interview rounds.
based on 1 interview experience
Difficulty level
Duration
Design Engineer
172
salaries
| ₹4.5 L/yr - ₹10.4 L/yr |
Manager
161
salaries
| ₹16 L/yr - ₹25.4 L/yr |
Senior Executive
150
salaries
| ₹9 L/yr - ₹16.5 L/yr |
Deputy Manager
92
salaries
| ₹12.4 L/yr - ₹20 L/yr |
Solution Engineer
78
salaries
| ₹7.5 L/yr - ₹14 L/yr |
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