What Is The Mern Stack Developer? Introduction & Examples

Have you ever been amazed by the beautiful websites you see online? These beautiful and dynamic websites are generally created by MERN Stack Developers. They are experts in building web applications using the MERN stack technology.

But you must be wondering about what this MERN stack technology is. So, it is nothing but a popular set of tools used by developers to create modern, functional, and dynamic web applications. In today’s growing world, MERN stack developers are in great demand as their modern skills are always needed to build a good and attractive website.

Today in this article we will understand what MERN stack developer is, what is MERN stack full form, what is the MERN stack developer salary. and how can you start your career as a MERN stack developer in a reputed MNC.

MERN Stack Developer – Key Takeaways

MERN stack is a combination of four JavaScript technologies – MongoDB, Express, React, and Node.js that work together to build modern web applications. Each technology plays a specific role in the development process.
To become a MERN stack developer, you need strong knowledge of JavaScript, React, Node.js, and MongoDB. Additional skills like Git, software design, and problem-solving are also important.
MERN stack developers are in high demand, and companies offer competitive salaries to them. In India, the average salary is ₹4,65,337 per year, but experienced developers can earn much more with continuous skill development.

What Is the Mern Stack

Before diving deep into the topic, it is important for us to understand the meaning of the MERN stack first. So, the MERN stack is nothing but a collection of JavaScript tools used to build full-stack web applications quickly and easily. MERN stack full form stands for: MongoDB, Express, React, and Node.js. These tools work together to simplify the development process, let us take a quick look to understand what all of these tools in the MERN stack full form are used for:

MongoDB: It is a modern database that stores data in a flexible way, unlike traditional databases.
Express: A web server framework for Node.js that helps in managing the backend of a website or app.
React: A JavaScript framework used to create the user interface on the front end.
Node.js: A web server that allows JavaScript to run on the server side of the application.

Also read: 12 Best Full Stack Web Development Courses in India

Mern Stack Vs Full Stack

Most of us often get confused about MERN stack and full stack technologies and consider them as the same term, But in reality, they are different from each other having different features and advantages. Let us understand the basic difference between them with the help of the table given below:

MERN Stack	Full Stack
MERN Stack is a JavaScript-based stack that uses MongoDB, Express, React, and Node.js.	It involves using both front-end and back-end technologies for the development of applications.
The only technologies used in this include- MongoDB, Express, React, Node.js	The full stack can use a mixture of multiple technologies like HTML/CSS, JavaScript, databases (SQL or NoSQL), Node.js, Python, PHP, etc.
Primarily uses JavaScript for both front-end and back-end.	Uses multiple and different languages for front-end and back-end development.
It is easier to learn for those who are familiar with JavaScript.	It is a more diverse field, as different languages and tools may be involved.
MERN Stack is best suited for JavaScript-based projects.	It offers more flexibility with different language options and technologies.
MERNstack provides high performance for single-page applications.	The performance in full stack varies depending on the chosen stack and technologies.

Mern Stack Examples

To understand how the MERN stack Developer works with all these MERN stack things together, it is helpful to learn this by building a simple project that uses each part of the stack. Let us create a basic blog application where users can view and add blog posts. The basic information about how we will use each tool in this project is written below for you reference:

MongoDB: To store the blog data
Express: To handle API routes
React: For the front-end building
Node.js: To connect everything at the backend.

1. MongoDB Database

As a MERN stack developer, We will first set up the MongoDB database to store our blog posts. Each post will have a title, body, tags, and a timestamp. We can fill the database with some example data for demonstration or leave it empty so users can add posts themselves.

MongoDB is an open-source database that stores data in a flexible way using JSON-like documents, making it a great choice for JavaScript apps.

2. Express API

In the next step, we will create an API using Express to perform CRUD (Create, Read, Update, Delete) operations on the blog posts. We will set up routes to handle requests like getting all posts, getting a single post, adding a new post, updating an existing post, and deleting a post. Express will connect to MongoDB to manage this data. Additionally, this will also helps us to handle errors, ensuring the app runs smoothly.

3. React Frontend

For the development of a front-end part, we will use React to build a user interface that communicates with the API. React will fetch blog data and display it to users. For example, a CreatePost form will allow users to add new posts. React is known for its flexibility and efficiency in building interfaces and is widely used in web development.

4. Node.js

Node.js will bring everything together. It will run the Express server, handle API routes, and connect to MongoDB. Node.js is a free, open-source JavaScript environment that lets MERN stack developers to build server-side applications. It plays a key role in running the backend of our MERN stack application, making everything work as a full system.

In this project, React handles the front-end, Express manages the API, MongoDB stores the data, and Node.js connects everything together. This is how a full-stack JavaScript application is built using the MERN stack. The data flows smoothly between the front-end and back-end, allowing users to interact with the blog in real time.

What is a Mern Stack Developer?

A MERN stack developer is an individual who is experienced with using the MERN technologies and capable of designing, developing, testing, and deploying full-stack web applications using the MERN stack.

Skills Required to be a Mern Stack Developer

MERN stack developers are in great demand across the world due to their expertise in creating dynamic and modern web apps, but with the rising demand, there is also a tough competition in the market. So it is essential to learn all the necessary skills to start your career in this role. The essential key skills demanded by companies for MERN stack developers include:

Expertise in JavaScript, HTML, CSS
Firm grasp of React fundamentals like components, props, state, hooks, etc
Proficiency in Node.js and ability to create RESTful APIs with Express
Experience with MongoDB, document databases, and querying
Understanding of software design patterns like MVC
Version control skills using Git
CI/CD pipeline knowledge
Basic Server Administration
Problem-solving and troubleshooting skills

Also read: MERN Stack – A Full Guide with Introduction & Examples

Roles and Responsibilities of a Mern Stack Developer

As a MERN stack developer, you will be involved in all the phases of application development, including:

Designing database schemas and APIs
Developing reusable React components
Creating REST endpoints with Express
Integrating MongoDB for CRUD operations
Debugging and testing code
Building frontend interfaces
Setting up deployment pipelines
Ensuring scalability and performance
Monitoring and maintenance
Collaboration with other teams

What Is Mern Stack Developer Salary?

As the Demand for MERN stack developer continues to grow in the market, the demand for experienced MERN stack developers is also increasing. Companies are actively looking for individuals having the desired skills and are even willing to pay them high salaries for the same.

According to a recent report from Glassdoor, the average MERN stack developer salary in India is around ₹4,65,337 per year. However, this salary can vary depending on factors like- Experience level, location, Company you are working in, and skills you have. Top MERN stack developers with over 10+ years of experience can earn up to 18 Lakh per year or even more.

With continuous learning and skill development, MERN stack developers have excellent career prospects across various industries and companies of all sizes. Overall, it is a great career path for JavaScript enthusiasts.

Become A MERN Stack Developer With PW Skills

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Enrolling in this course will help you gain all the skills and knowledge required to become a MERN stack developer in a beginner-friendly way. Th key features of this course that make it a standout choice among developers include the facility of live and recorded lectures, expert guidance on every step, industry-relevant course curriculum, daily mock assignments, doubt-clearing sessions, PW lab for coding practice, certificate upon course completion, 100% Job assistance guarantee, and much more.

So, What are you waiting for? Visit PWskills.com today to get a course and become a proficient MERN stack developer with us.

Also read: Features Of Mern Stack Development Services You Should Know