Software development is a dynamic field, in which new programming languages, frameworks, and technologies may live and die within a few years. That being the case, developers need to constantly learn new skills to remain relevant.

There are hundreds of programming languages out there, from the well-known to the ultra-obscure, and gaining fluency with one or more is a must if you want to make yourself a hot ticket for employers“Examining job demand is one useful way to measure a programming language's popularity, because it shows developers the skills they will need to improve their career prospects,- Misirlakis said”.

Coding Dojo recently analyzed hundreds of thousands of job postings on job search engine Indeed that contained the name of a programming language, stack, or framework.


1. Java
Java is one of the best programming language created. Two decades is a big time for any Programming language, and Java has gained strength every passing day. Though there are times, when Java development slows down, but Java has responded well. According to Oracle, 3 billion mobile phones run Java, along with 125 million TV devices and 89% of desktop computers in the U.S. Java is everywhere and the demand for strong developers is high.

2. Python
Python is a widely used high-level programming language for general-purpose programming. It's commonly used in scientific computing, data mining, and machine learning—and the growth in demand for machine learning developers in particular may be driving some of its popularity, Misirlakis wrote- Companies seeking full stack developers often list Python as a required language for candidates to have in their arsenal.

3. JavaScript
JavaScript is the most commonly used programming language to create cool websites and games for the web. It is dynamic and is flexible to use on object-oriented programming. There are plenty of jobs out there for JavaScript developers. Anyone looking for a job as a front-end web developer will also need to know Javascript, in addition to HTML, CSS and other scripting languages.

4. C++
Like JavaScript, C++ remained as popular as it was in early 2017. The language is usually used for system/application software, game development, drivers, client-server applications and embedded firmware.

5. C#
C# fell in job demand slightly this year. An object-oriented language from Microsoft designed to run on the .NET platform, is also heavily used in video game development. C# 7.2 came out in November 2017, and added several new features aimed at avoiding unnecessary copying.

6. PHP
Many developers use PHP for web development, either to add functions that HTML can’t handle or to interact with MySQL databases. "Languages like Java, C++ and PHP have been around forever and aren't going anywhere anytime soon, but are most likely to take a hit from newer options in languages to choose from as we go forward," Williams said.

PERL continues to be popular for system and network administrators and as a glue language," Misirlakis wrote.
Certain other languages did not make the top seven, but still grew in use and popularity over the past year. These include Swift (which has been growing steadily in popularity since it launched) R (which is expected to climb the rankings, as Stack Overflow developers named it- the least-disliked language), and Rust (which is steadily growing in popularity according to Google Trends data).