{"id":168341,"date":"2023-05-31T14:38:11","date_gmt":"2023-05-31T13:38:11","guid":{"rendered":"https:\/\/liora.io\/en\/?p=168341"},"modified":"2026-08-08T12:29:50","modified_gmt":"2026-08-08T11:29:50","slug":"all-about-back-end","status":"publish","type":"post","link":"https:\/\/liora.io\/en\/all-about-back-end","title":{"rendered":"Back end : A complete overview on its relevance in Data Science"},"content":{"rendered":"\n

The back end is essential for web development, but also for Data Science and Machine Learning. Find out all you need to know about it, and how to follow a dedicated training course.<\/strong><\/p>\n\n\n

Today, we use a wide range of software applications, on PCs and mobiles, for both entertainment and business. If an application delivers a smooth, intuitive experience, it’s largely thanks to its “backend” performing all the essential tasks in the background.<\/p>\n\n\n

What is backend development?<\/h2>\n\n\n

In web development, activities carried out in the background of programs are referred to as back-end development.<\/p>\n\n\n

This concept covers the logic, integration, and server-side activities of a web application. Examples include writing APIs<\/strong>, creating libraries<\/strong>, and working on system components<\/strong>. Conversely, front-end development<\/a> focuses on the services and programs that users will encounter.<\/p>\n\n\n

Back-end developers build the computer code that enables a database to communicate with an application. They maintain the back end of a website, including its databases<\/a> and servers.<\/p>\n\n\n

What is a back-end developer?<\/h2>\n\n\n

The back-end developer’s job focuses on writing code, scripting, and architecting a website that communicates with the site’s database and the user’s web browser. They must ensure data consistency and integrity.<\/p>\n\n\n

This role requires a wide range of technical skills<\/strong>. The backend developer must be able to create code that performs relational mapping to retrieve data from a database<\/strong>. They understand how DBMS such as MySQL, PostgreSQL, SQL Server, MongoDB<\/a>, and Oracle Database work.<\/p>\n\n\n

Back-end developers also master back-end programming languages such as Python<\/a>. This simple, versatile language is the most widely used and enables backend development via frameworks such as Django<\/a> and Flask.<\/p>\n\n\n

JavaScript environments such as NodeJS <\/strong>and ExpressJS<\/strong> are also used. In particular, Java was designed from the outset for use on the server. Popular Java frameworks include Spring<\/strong> and Java Server Faces<\/strong>.<\/p>\n\n\n

On Windows systems, the C# language<\/strong> is the recommended architecture for backend programming. Other commonly used languages include PHP, Perl, and Ruby.<\/p>\n\n\n

Start a career in Data Engineering<\/a><\/div><\/div>\n\n\n

Backend and frontend developers are constantly working together, so it’s useful to know the basics<\/strong> of frontend technologies like HTML and CSS.<\/p>\n\n\n

In addition, version control systems enable project-related files to be managed and progress tracked. These include Git and GitHub<\/a>. These tools are widely used for collaboration on Data Science projects.<\/p>\n\n\n

A back-end developer also handles Cloud solutions such as Amazon Web Services<\/strong> (AWS), Google Cloud Platform<\/strong> (GCP), or Microsoft Azure<\/strong>.<\/p>\n\n\n

Of course, this professional also needs non-technical skills such as problem-solving, critical thinking, communication, and a flair for analysis. They must be able to work both independently<\/strong> and as part of a team.<\/p>\n\n\n

What is the role of the back-end developer?<\/h2>\n\n\n

Back-end developers have many responsibilities<\/strong>. To design effective solutions, they must first identify the needs and performance objectives of a website.<\/p>\n\n\n

They are also responsible for developing and administering APIs (Application Programming Interfaces), developing data storage solutions<\/strong> for websites, and writing, testing, and maintaining development solutions for code-related problems.<\/p>\n\n\n

He communicates with developers, designers, and system administrators to identify new functionalities<\/strong> for development. His role is also to create a website architecture<\/strong> using the right product lifecycle approach.<\/p>\n\n\n

The expert organizes the system’s logic, and remedies any difficulties that may arise. They are also responsible for debugging applications.<\/p>\n\n\n

What are the back-end development professions?<\/h2>\n\n\n

Back-end development skills are highly sought-after in companies. They give access to a wide range of positions.<\/p>\n\n\n

In addition to the role of back-end developer, these include Java developer<\/strong>, full-stack developer<\/strong>, DevOps engineer<\/strong>, software engineer, and iOS developer. In addition, the back end is widely used for Data Science and Data Engineering<\/a>.<\/p>\n\n\n

How much does a back-end developer earn?<\/h2>\n\n\n

Back-end developers can enjoy a high salary. On average, a back-end developer in the USA earns $102,000 a year.<\/p>\n\n\n

In Canada, according to Talent.com<\/a>, the average salary for a back-end developer is $77.70 per hour. Entry level positions start around $102.000 and the most experienced go up to $155.000 per year.<\/p>\n\n\n

How do I take a back-end training course?<\/h2>\n\n\n

As you can see, mastering back-end development<\/strong> can open up a wide range of career opportunities. To acquire this expertise, you can turn to Liora.<\/p>\n\n\n

All our training courses start with a module dedicated to the Python programming language<\/strong> and a module dedicated to databases<\/strong>, starting with SQL and MongoDB.<\/p>\n\n\n

With the Data Engineer course<\/a>, a CI\/CD module also covers Git and GitHub. Other modules cover DataViz<\/a>, Machine Learning<\/a>, and Business Intelligence<\/a>. At the end of the course, you’ll have all the skills you need to work in Data Science or back-end development.<\/p>\n\n\n

Our innovative Blended Learning approach<\/strong> combines online learning on a coached platform and Masterclasses. You can choose between Continuing Education and an intensive BootCamp mode.<\/p>\n\n\n

Through our prestigious partnerships with Sorbonne University<\/strong>, learners receive an industry-recognized certificate. Of our alumni, 80% find immediate employment.<\/p>\n\n\n

You know all about the back end. For more information, see our complete file on Python<\/a> and our dossier on the front end<\/a>.<\/p>\n\n\n

Become a Data Engineer with Liora<\/a><\/div><\/div>\n\n","protected":false},"excerpt":{"rendered":"

The back end is essential for web development, but also for Data Science and Machine Learning. Find out all you need to know about it, and how to follow a dedicated training course. Today, we use a wide range of software applications, on PCs and mobiles, for both entertainment and business. If an application delivers […]<\/p>\n","protected":false},"author":74,"featured_media":168363,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"_acf_changed":false,"editor_notices":[],"footnotes":""},"categories":[2434],"class_list":["post-168341","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cloud-dev"],"acf":[],"_links":{"self":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts\/168341","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/users\/74"}],"replies":[{"embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/comments?post=168341"}],"version-history":[{"count":2,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts\/168341\/revisions"}],"predecessor-version":[{"id":209837,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts\/168341\/revisions\/209837"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/media\/168363"}],"wp:attachment":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/media?parent=168341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/categories?post=168341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}