Back-end Developer

What Does a Back-End Developer Do?

A back-end developer writes code that forms the backbone of a website or app. Learn more about this career field and how to get started. Back-end developers are the experts who build and maintain the mechanisms that process data and perform actions on websites. Unlike front-end developers, who control everything you can see on a website, back-end developers are involved in data storage, security, and other server-side functions that you cannot see.

What is back-end development?

Back-end development means working on server-side software, which focuses on everything you can’t see on a website. Back-end developers ensure the website performs correctly, focusing on databases, back-end logic, application programming interface (APIs), architecture, and servers. They use code that helps browsers communicate with databases, store, understand, and delete data.
Back-end development means working on server-side software, which focuses on everything you can’t see on a website. Back-end developers ensure the website performs correctly, focusing on databases, back-end logic, application programming interface (APIs), architecture, and servers. They use code that helps browsers communicate with databases, store, understand, and delete data.

Back-end developer vs. back-end engineer

Back-end developers and engineers have similar technical skills, but different responsibilities. A back-end developer is like a teacher, whereas a back-end engineer is like a school principal who creates the big-picture strategy. Back-end developers tend to focus on smaller parts of the whole, such as applications and programs, working with teams to prove their design methods are viable.

Back-end developer tasks and responsibilities

Back-end developers are required to have technical expertise, analytical thinking, and excellent collaboration skills. As a back-end web developer, you should be able to work independently to design the web infrastructure.

  • Build and maintain websites: A back-end developer’s main responsibility is to use various tools, frameworks, and languages to determine how best to develop intuitive, user-friendly prototypes and turn them into websites. This requires an understanding of cross-platform functionality and compatibility.
  • Write high-quality code: To produce sustainable web applications, developers must write clean and easily maintainable code.
  • Perform quality assurance (QA) testing: Create and oversee testing schedules to optimize user interface and experience, ensuring optimal display on various browsers and devices.
  • Assess efficiency and speed: Once a website is up and running, and during updates and edits, developers need to assess its performance and scalability, adjusting code as necessary.
  • Assess efficiency and speed: Be able to troubleshoot issues and resolve them, while communicating them to project managers, stakeholders, and QA teams.
  • Assess efficiency and speed: Maintain workflows with client teams to ensure ongoing support, along with leading training and mentorship for junior developers.
  • Is back-end development for me?

    If you enjoy learning programming languages and using technological tools to build high-quality back-end applications, then a career in web development might be a good fit for you.

    What tools do back-end developers use?

    Web developers use a variety of tools to develop, test, and maintain web applications. Some common tools for back-end developers include:

    • Programming languages:

      • Python

      • PHP

      • JavaScript

      • Ruby

      • Java

      • C#

    • Frameworks:

      • Laravel

      • Django

      • Spring

      • Ruby on Rails

      • Meteor

      • Node.js

    • Databases:

      • MongoDB

      • MySQL

      • Oracle

    • Servers:

      • Xampp

      • Apache

      • NGINX

      • Lighttpd

      • Microsoft IIS

    Back-end developer salary and job outlookn

    The estimated median base pay for a back-end web developer in the US is $82,462 as of October 2022, according to Glassdoor [1]. Indeed reports an average base salary of $95,472 [2]. This can vary depending on your location, your seniority, and other factors.

    Back-end developers are in high demand. According to the US Bureau of Labor Statistics (BLS), web developer positions are expected to grow by 23 percent between 2021 and 2031 [3].

    How to become a back-end developer?

    There are many paths you can take to become a web developer. Whether you are a recent graduate or hoping to switch careers, it is important to assess what transferable skills you already have and consider building the new skills needed to pursue a back-end developer role. 

    Back-end developer technical skills

    As a back-end developer, there are certain technical skills you will need to learn to navigate developing the back-end of the web or mobile application.  

    • Programming languages: Any back-end developer needs to be well-versed in back-end programming languages such as Python, Java, and PHP. These make the website function when used alongside databases, frameworks, and servers. Python is one of the most popular programming languages because it is compatible with artificial intelligence (AI) and machine learning, and works well for writing clear and logical code. Basic knowledge of front-end languages HTML, CSS, and JavaScript is a bonus.

    • Frameworks: Frameworks are the libraries of back-end programming languages that help to build the server configuration. They tend to be linked with programming languages, so if you are familiar with Python, you’ll also know Flask, Django, or another Python-based framework, and so on.

    • Databases and servers: You’ll need to understand how to stack and recover data from databases, as back-end programming controls access to this information, including storage and recovery. MongoDB and MySQL are popular database programs. The database stores and organizes the client’s data so that it can be easily arranged and recovered, just like you might use cloud storage for your photos. This database then runs on a server that provides data upon request.

    • Application Program Interface (API): An API is a series of definitions and rules for developing application software. In addition to internet browser websites, companies often want a mobile app for iOS or Android. Knowledge of application-building languages like JavaScript will expand your job opportunities. 

    • Accessibility and security clearance: You should develop knowledge of network protocols and web security. Knowing how to secure databases and servers will be critical to your success as a back-end developer.

    Back-end developer workplace skills

    Alongside technical skills, these workplace skills will enable you to work more efficiently, effectively, and seamlessly with team members.

    • Communication: A back-end web developer needs to thoroughly understand the engineer’s vision in order to execute it. Strong written and conversation skills will help you communicate any ideas and troubleshoot with team members and stakeholders. 

    • Problem-solving and analytical thinking: You will need to find creative solutions when developing a web or mobile app, such as debugging code and revising it without crashing the entire site. As a developer, you should be able to analyze why a portion of code does or does not work, and anticipate and prevent errors.

    • Industry knowledge: Holistic understanding of the tech industry is always helpful to keep up with overall economic trends as well as updates to languages and platforms. To brush up, look into blogs, forums, news, and books related to web and app development.

    Course Fees ₹ 15000 (3 Month Course)

    PHP is a powerful and flexible scripting language that is extensively used in web development. With its simple and intuitive syntax, PHP allows developers to create dynamic and interactive web pages and applications. It is an open-source language, meaning it is freely available and continuously evolving thanks to a vast community of contributors.

    Key Features and Capabilities of PHP:

    Server-Side Scripting: PHP is primarily used for server-side scripting, which means the code is executed on the web server before the resulting output is sent to the client's browser. This enables PHP to generate dynamic content, interact with databases, handle form submissions, and perform various server-side operations.
    Cross-Platform Compatibility: PHP is compatible with major operating systems such as Windows, macOS, Linux, and Unix. It can seamlessly run on various web servers like Apache, Nginx, and Microsoft IIS, making it a versatile choice for web development across different platforms.
    Extensive Database Support: When a web browser reads an HTML document, it interprets the tags and renders the content accordingly. This means that HTML determines how the content is displayed on the screen, including the text formatting, images, and interactive elements.
    Integration with Web Technologies: PHP integrates well with HTML, CSS, and JavaScript, making it easy to embed PHP code within HTML files. This seamless integration allows developers to create dynamic web pages by mixing PHP and HTML, resulting in a rich and interactive user experience.
    Vast Ecosystem of Libraries and Frameworks: HTML is a fundamental skill for anyone interested in web development. It serves as the starting point for building web pages and lays the foundation for more advanced technologies like CSS (Cascading Style Sheets) and JavaScript.
    Community Support and Documentation: PHP has a large and active community of developers who contribute to its growth and provide extensive support. The PHP community offers comprehensive documentation, tutorials, forums, and online resources, making it easy for developers to learn and seek assistance.
    AJAX stands for Asynchronous JavaScript and XML. AJAX is a new technique for creating better, faster, and more interactive web applications with the help of XML, HTML, CSS, and Java Script.

    • Ajax uses XHTML for content, CSS for presentation, along with Document Object Model and JavaScript for dynamic content display.
    • Conventional web applications transmit information to and from the sever using synchronous requests. It means you fill out a form, hit submit, and get directed to a new page with new information from the server.
    • With AJAX, when you hit submit, JavaScript will make a request to the server, interpret the results, and update the current screen. In the purest sense, the user would never know that anything was even transmitted to the server.
    • XML is commonly used as the format for receiving server data, although any format, including plain text, can be used.
    • AJAX is a web browser technology independent of web server software.
    • A user can continue to use the application while the client program requests information from the server in the background.
    • Intuitive and natural user interaction. Clicking is not required, mouse movement is a sufficient event trigger.
    • Data-driven as opposed to page-driven.

    Rich Internet Application Technology

    AJAX is the most viable Rich Internet Application (RIA) technology so far. It is getting tremendous industry momentum and several tool kit and frameworks are emerging. But at the same time, AJAX has browser incompatibility and it is supported by JavaScript, which is hard to maintain and debug.

    AJAX is Based on Open Standards

    AJAX is based on the following open standards

    • Browser-based presentation using HTML and Cascading Style Sheets (CSS).
    • Data is stored in XML format and fetched from the server.
    • Behind-the-scenes data fetches using XMLHttpRequest objects in the browser.
    • JavaScript to make everything happen.

    Laravel is an open-source PHP framework, which is robust and easy to understand. It follows a model-view-controller design pattern. Laravel reuses the existing components of different frameworks which helps in creating a web application. The web application thus designed is more structured and pragmatic.

    Laravel offers a rich set of functionalities which incorporates the basic features of PHP frameworks like CodeIgniter, Yii and other programming languages like Ruby on Rails. Laravel has a very rich set of features which will boost the speed of web development.

    If you are familiar with Core PHP and Advanced PHP, Laravel will make your task easier. It saves a lot time if you are planning to develop a website from scratch. Moreover, a website built in Laravel is secure and prevents several web attacks.

    Advantages of Laravel

    Laravel offers you the following advantages, when you are designing a web application based on it

    • The web application becomes more scalable, owing to the Laravel framework.
    • Considerable time is saved in designing the web application, since Laravel reuses the components from other framework in developing web application.
    • It includes namespaces and interfaces, thus helps to organize and manage resources.


    Composer is a tool which includes all the dependencies and libraries. It allows a user to create a project with respect to the mentioned framework (for example, those used in Laravel installation). Third party libraries can be installed easily with help of composer.
    All the dependencies are noted in composer.json file which is placed in the source folder.


    Command line interface used in Laravel is called Artisan. It includes a set of commands which assists in building a web application. These commands are incorporated from Symphony framework, resulting in add-on features in Laravel 5.1 (latest version of Laravel).

    MySQL is a relational database management system (RDBMS) developed by Oracle that is based on structured query language (SQL).
    A database is a structured collection of data. It may be anything from a simple shopping list to a picture gallery or a place to hold the vast amounts of information in a corporate network. In particular, a relational database is a digital store collecting data and organizing it according to the relational model. In this model, tables consist of rows and columns, and relationships between data elements all follow a strict logical structure. An RDBMS is simply the set of software tools used to actually implement, manage, and query such a database.

    4 keys to understanding MySQL

    MySQL is widely compatible: Though often associated with internet applications or web services, MySQL was designed to be extensively compatible with other technologies and architectures. The RDBMS runs on all major computing platforms, including Unix-based operating systems, such as the myriad Linux distributions or Mac OS, and Windows.

    MySQL databases are relational:

    The primary factor differentiating relational databases from other digital storage lies in how data is organized at a high level. Databases like MySQL contain records in multiple, separate, and highly codified tables, as opposed to a single all-encompassing repository, or collections of semi- or unstructured documents.

    This allows RDBMSs to better optimize actions like data retrieval, updating information, or more complex actions like aggregations. A logical model is defined over all of the contents of the database, describing for example the values allowed in individual columns, characteristics of tables and views, or how indices from two tables are related.

    MySQL is open-source: Any individual or enterprise may freely use, modify, publish, and expand on Oracle’s open-source MySQL code base. The software is released under the GNU General Public License (GPL).

    For MySQL code needing to be integrated or included in a commercial application (or if open-source software is not a priority), enterprises can purchase a commercially licensed version from Oracle.

    Again, these options provide organizations with additional flexibility if deciding to work with MySQL. The public and community-based nature of open-source releases enriches MySQL’s documentation and online support culture, while also ensuring that sustained or newly-developed capabilities never stray too far from current user needs.

    MySQL is easy to use: Though MySQL’s relational nature and the ensuing rigid storage structures might seem restrictive, the tabular paradigm is perhaps the most intuitive, and ultimately allows for greater usability.

    In fact, MySQL makes many concessions to supporting the widest possible variety of data structures, from the standard but rich logical, numeric, alphanumeric, date, and time types, to more advanced JSON or geospatial data. Beyond mere data types and an expansive built-in feature set, the MySQL ecosystem also includes a variety of tools, easing everything from server management to reporting and data analysis.

    Regardless of the RDBMS’s overarching architecture, users can invariably find a MySQL feature allowing them to model and codify data how they wish. MySQL remains one of the most straightforward database technologies to learn and use.