Table of Content

Quick Summary
What is Node.js?
- It is an Open-Source technology, meaning anyone from anywhere across the globe can access it.
- It is a Cross-Platform technology compatible with Windows, Linux, Mac OS, Unix, etc.
- It is a back-end runtime environment that executes JavaScript.
- You can easily download it to your system since it is free.
- It is a runtime environment and not a programming language or a framework.
- It utilizes asynchronous programming and is event-driven, which means it can simultaneously handle multiple events and requests.
What is the job description for Node.js developers?
Here are some of the duties of a node.js developer:
- Maintaining and developing server-side applications using Node.js
- Ensuring a high response rate from requests and trigger events in the application.
- Maximizing the scalability, performance, and efficiency of the logic and code in JavaScript.
- Conducting and implementing the best security and data protection protocols while maintaining the databases such as MySQL and MongoDB.
- Building logic and optimizing the performance and responsiveness with the front-end requests.
What are the different kinds of Node.js developers?
In house expert
Freelancer
Outsource
Benefits of hiring Node.js developers

Scalability
Transparent communication
Faster time-to-market
Simplified
Well-tested and Secure
Reusing Code
Quick Code Execution
What are some questions to keep in mind while hiring Node.js developers?
Questions for entry-level Node.js developers
- What is Node.js?
- What is the use of Node.js in backend development?
- What is the use of Node.js in frontend development?
- Which applications require Node.js?
- State the advantages of using Node.js.
- What is asynchronous programming?
- What is event-driven programming?
- What is a callback function in Node.js?
- Expand NPM. What does it mean? What is its function?
- How is Node.js better than PHP or ASP?
- What is an event loop in Node.js?
- Is Node.js Single threaded? Why?
- Why is Node.js gaining popularity among Java programmers?
- Can Node.js be used in a Windows system?
- What is the most commonly used framework in Node.js?
Questions for intermediate-level Node.js developers
- What is meant by Node.js streams?
- Explain the various API functions in Node.js.
- Create a basic application using Express.js.
- Define an EventEmitter function. Explain its use in Node.js.
- What is packaged Express.js?
- Define Node.js’s async and how it is implemented.
- How do you make an HTTP POST request with Node.js?
- How is Node.js different from JQuery and AJAX?
- What are dependencies in Node.js? How do you make sure that they are safe?
- Mention the popular packages in Node.js.
- Create a Node.js server that returns the expression ‘Hello World.’
- What is the full form of REPL? What is its purpose?
Questions for advanced-level Node.js developers.
- Define the module that supports cryptography in Node.js.
- Does Node.js support deployment on multi-processor platforms?
- What is the Reactor Pattern in Node.js?
- What is piping in Node.js?
- Explain how you can open a file using Node.js.
- Elaborate spawn() and fork() methods. Also, state the difference between them.
- Why is Error-First callback preferred in Node.js?
- Should you separate the server from the Express app in Node.js? Why?
- Define NODE_ENV. Elaborate on its purpose in Node.js.
- What is the test pyramid in Node.js?
- Can you flag the read/write operations in files?
- What are the timing features available in Node.js?
4 Things to keep in mind while hiring Node.js developers
Drive to Solve Problems
Good Communication Skills
Relatively High Level of Intelligence
Teamwork
Conclusion

FAQs

James Smith, a seasoned Brand Marketing Manager with over six years of experience, excels in crafting and executing strategic marketing initiatives. With a keen understanding of consumer behavior and market trends, he effectively builds and enhances brand identities. James's expertise lies in developing comprehensive marketing strategies that resonate with target audiences, driving engagement and loyalty. His extensive experience and innovative approach make him a valuable asset in achieving brand objectives and driving business growth.