The most in demand programming languages in the labor market 2021

816 Views | 1 day ago | Published On: September 03,2022 - Last Updated: June 16,2024

The most in-demand programming languages


The most in demand programming languages in the labor market 2021

The battle for the best programming languages is raging. But who will make it out on top? They're all great, but we checked our database of job postings from over 6,000 tech companies across the globe to see which languages were most in-demand from employers. 

So, whether you're a seasoned programmer with years of experience and a few languages under your belt, or you're just starting and trying to decide where to start, here are the top programming languages of 2021 (so far):


According to Jobbio data, JavaScript is the most programming language for jobs posted on the website. According to the site, almost all roles relating to programming and engineering list JavaScript in the job requirements. That is because it's considered the most straightforward programming language to learn, and most web browsers use it.

JavaScript is used to manage the behavior of web pages. Coders can create dynamic web elements such as animated graphics, interactive maps, clickable buttons, and more using JavaScript.

Programmers who use HTML, CSS, and JavaScript in tandem obtain a higher level of website control and can provide a better user experience regarding navigation and readability. 


Following very closely behind JavaScript is Python, an interpreted high-level, general-purpose programming language. Its design philosophy emphasizes code readability with its use of significant indentation.

Its language constructs and object-oriented approach aim to help programmers write clear, logical code for small and large-scale projects. Several popular digital tools and platforms were developed with Python, including YouTube, Google Search, and iRobot machines.

There has been an increase in the demand for Python developers over the last few years on Jobbio, a trend that has yet to go anywhere in 2021. Read more about the top jobs for Python programmers.


Another language that's constantly in demand is C# (C-Sharp). It is a general-purpose, multi-paradigm programming language. C# encompasses static typing, strong typing, lexically scoped, imperative, declarative, functional, generic, object-oriented, and component-oriented programming disciplines.  

As with other popular languages, a large community works with C# and supports new learners. Because of this, learning C# may be easier than attempting to know some of the more unique and less-documented languages.


SQL (Structured Query Language) is a language that allows programmers to query and manipulate databases. As a domain-specific language, it's designed for managing data within an RDBMS. SQL can locate and retrieve data from a database and update, add, or remove records. 

SQL allows developers to connect servers and databases for applications like OracleMySQL, and Microsoft SQL Server. SQL also dominates the notable cloud computing trend, which will undoubtedly continue to grow in popularity.


CSS (Cascading Style Sheets) is usually applied along with HTML and governs a website's appearance. While HTML organizes site text into chunks, CSS determines a page's elements' size, color, and positioning.  

CSS is also very convenient. The cascading element of the name means that an applied style will "cascade" down from parent elements to all children elements across the site. This feature means that once users determine aesthetics for the primary parent, they won't have to manually repeat their code across a website.


Google had developed it and is commonly referred to as "Go." Programmers use Golang for system and network programming, audio and video editing, and Big Data. Google designed it to support multithreading which allows processes to run concurrently.

Furthermore, projects such as Kubernetes, Docker, and Blockchain use Go. As Google's power shows no sign of slowing down, researchers expect to Go to serve as one of the most futuristic programming languages.


Much of the developer community argues that PHP performs slowly and acts outdated. However, it remains popular among back-end developers. In addition, we anticipate the stack overflow developer survey of 2021, reporting it as one of the most in-demand programming languages of 2021.

According to W3Techs, 79% of all websites use PHPFacebook, Yahoo, and Wikipedia use the PHP framework. WordPress, the most popular content management system, continues to be the language of choice.

The most important programming languages
Common Questions

What are the most popular programming languages?

There are many programming languages used today, and among the most popular are:

1- Java

2- Python

3- JavaScript

4- C

5- C++

6- ruby

7- Bash

8- Swift

9- PHP

10- SQL

What are the types of programming languages?

There are many types of programming languages, including

  1. High-Level Programming Languages: These languages use expressions and commands that humans, such as Java, Python, and JavaScript, readily understand.
  2. Low-Level Programming Languages: These languages use instructions close to the machine language, such as Assembly Language and Machine Language.
  3. Middle-Level Programming Languages: These languages act as a middle ground between high-level and low-level programming languages, such as C and C++.
  4. Object-Oriented Programming Languages: These are the languages that rely on the concept of objects and focus on the data and operations associated with them, such as Java, C#, and Swift.
  5. Scripting Programming Languages: These are the languages used to execute programs that run on web browsers and scripting programs, such as JavaScript, Python, and Bash.

What is the primary programming language?

There is no single primary programming language, as programming languages are used based on the purpose and application being developed. Today's most commonly used programming languages are general-purpose programming languages such as Java, C++, Python, JavaScript, and others. Machine language is considered the computer's primary language, and other languages are translated into this language to execute commands.

What programming language do hackers use?

There is no specific programming language exclusively used by hackers, as any programming language can be used to develop programs and applications. Among the most common languages in the field of hacking and cybersecurity are programming languages such as Python, C++, Java, Perl, Ruby, and others. These languages are used to develop hacking, exploitation, protection, and security tools. It is important to note that using any programming language in hacking should be done legally and responsibly.


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