When working as an IT engineer, it is important to learn the languages that are in high demand in the development field. Engineers who can use languages that are in high demand are highly valued in the job market, and it is possible to change jobs under good conditions. In this article, we will introduce the 11 programming languages that IT engineers want to learn in the latest 2024 edition.
If you want to find a job or change jobs to a company with good conditions as an IT professional, we recommend the engineer-focused recruitment agency “G Talent”. As of 2024, there are over 1,000 global IT engineer job openings with high salary standards, so you can find a job that matches your wishes.
Contents
【2024 Edition】11 Programming Languages IT Engineers Should Learn
Here we introduce 11 programming languages that IT engineers should learn, based on the latest version for 2024.
- Python
- Ruby
- JavaScript
- Java
- PHP
- Go
- React
- Vue
- Swift
- Scala
- Dart
Python
Python is a language used in social networking services such as Instagram and Facebook, as well as websites such as Google. It is one of the easiest languages to learn, with very simple code that is easy to read and understand.
Reference: 【入門】Pythonとは｜活用事例やメリット、できること、学習方法を解説／skillup AI
What you can do with Python
Because Python is a highly versatile language, it is active in a wide range of fields, including web app development, data analysis, artificial intelligence software development, blockchain development, and IoT system development. Web app development continues to be in high demand, and Python is a popular language because it is also useful in fields that are attracting attention, such as artificial intelligence and blockchain.
Demand for Python
Because Python is highly versatile, knowing Python will allow you to work in a wide range of fields. As the use of artificial intelligence and IoT continues to spread, demand is expected to increase after 2024, and engineers who have mastered Python will be highly valued in the job market and can expect to see an increase in their annual income.
Ruby
Ruby is object-oriented programming language developed in Japan. There are other similar languages such as PHP, Perl, and Python, but Ruby is particularly popular because of the existence of the framework “Ruby on Rails”.
A framework is a list of templates for already-made programs, and using a framework has the advantage of allowing you to create high-quality programs without having to program from scratch.
Reference: プログラミング言語のRubyとは？特徴やできることを解説／発注ラウンジ
What you can do with Ruby
Ruby's strongest area is web service development. As of 2024, famous web services such as “Tabelog” and “Cookpad” were developed in Ruby.
Ruby's appeal is that it can intuitively operate databases because it can utilize the excellent framework “Ruby on Rails”. It is easy to develop not only web services but also a wide range of fields such as web apps and game development.
Demand for Ruby
Because of its ability to utilize frameworks and write simple code, Ruby is a language that allows for efficient development. It is in high demand because it can be used in a wide range of fields, from web services to web apps and game development, and learning it will be useful in a variety of fields.
JavaScript
You often see animated website screens, such as when you move your mouse and an animation starts or an image slides sideways. This is called dynamic screen movement, and it is achieved using the programming language JavaScript. For this reason, JavaScript is one of the essential languages for website production in 2024.
Reference: 【初心者向け】JavaScriptとは？基本の書き方をわかりやすく解説／HubSpot
What you can do with JavaScript
Web pages are created using HTML and CSS, but JavaScript is necessary to achieve sophisticated movement on the screen. JavaScript is used to achieve dynamic movement on the screen, such as moving animations based on mouse movements, performing calculation processes, and displaying Google Maps.
Demand for JavaScript
JavaScript is essential for website creation, so it is a language that front-end engineers developing websites after 2024 should learn. Using the library called “Electron”, you can develop apps that run on platforms such as Windows, Mac, and Linux. You can also use the framework called “React Native” to design UIs for iOS and Android apps. It can be used not only for websites that run on computers, but also for smartphone-compatible development, so demand is likely to remain high after 2024.
Java
Java is a highly versatile language used around the world. It is one of the three main languages used by Google for development, and as of 2024 it is used in companies and for work. It is particularly well-suited to the internet, and is used for the development of web services such as YouTube, Amazon, and Twitter, as well as Android apps.
Reference: 【入門】Javaとは？言語の特徴やプログラミングの流れをわかりやすく解説！／Engineer Labo
What you can do with Java
One of Java's main features is that it has a fast execution speed. For this reason, it is also suitable for the development of large-scale systems that require high processing power. The fields in which it can be used are wide-ranging, and it is possible to use it for web app development, business system development, Android app development, etc. It is also used for the development of core systems for financial institutions, which require a high level of security, because it has high processing power and reliability.
Demand for Java
Java Java is a language that has been used around the world for a long time, and is said to be the most standard language as of 2024. Because you can do most things if you have mastered Java, demand is stable and high. Because it is an object-oriented language, if you have mastered it, it will also be useful when learning other object-oriented languages such as C#, PHP, and Ruby.
PHP
PHP is a language that is often used for web app development, and can dynamically generate web pages. It is used for most web app development, so it is one of the programming languages that web engineers should learn from 2024 onwards.
Reference: PHPとは？基礎知識、できることを初心者にもわかりやすく解説します／カゴヤのサーバー研究室
What you can do with PHP
It is possible to develop almost all the functions needed for web apps, such as EC sites, blogs, contact forms, reservation systems, search functions, and login functions. WordPress, which is famous for its blogs, is also a famous application that uses PHP.
Demand for PHP
There are many web apps developed in PHP, and if you understand PHP, there are plenty of jobs available for you, such as operating existing apps and adding functions. There are also many projects that use it for new development from 2024 onwards, so if you want to be active as a web app developer, it is a language that you must learn.
Go
Go is a language developed by Google and is a programming language used for large-scale project development. It is a relatively new language that was released in 2012, but it is very popular and Go's sphere of activity is expanding even after 2024.
Reference: Go言語とはどんなプログラミング言語？特徴やできることを解説／発注ラウンジ
What you can do with Go
Go has a wide range of uses, and is used in web server construction, app development, command line interface tool development, and more. One of the features of Go is that it has few variations in notation, making it easy for many developers to get involved. It is also suitable for large-scale system development, as it is highly secure and easy to implement.
Demand for Go
As of 2024, Go is being used in the development of systems and services for many companies, including YouTube, Google Chrome overseas, and Mercari and Gunosy in Japan. Demand for Go developers is high, and if you learn it, you can expect your annual income to increase.
React
React is a JavaScript library developed by Facebook that specializes in user interface development. Using React can help you keep your coding costs down. As of 2024, React is being used in global websites and web apps such as Facebook, Instagram, and Netflix, and the number of companies using it in Japan is also increasing.
Reference: 【初心者向け】Reactとは？注目されている背景や特徴・メリットを解説／カゴヤのサーバー研究室
What you can do with React
With React, you can develop web apps, mobile apps, and VR. It can be used for a wide range of purposes, from small-scale to large-scale development, so it is highly versatile. Another advantage is that you can use it if you have knowledge of JavaScript.
Demand for React
Famous examples of its use include Instagram, Skype, and Mercari. Because using React can reduce coding costs, it is being used in many development environments. Therefore, if you learn JavaScript and Vue together, you can increase your market value in the job market.
Vue
Vue is one of the JavaScript frameworks, and if you can make good use of it, it is simple and flexible and can increase productivity in development environments. There are many JavaScript frameworks, but among them, Vue is the most popular.
Reference: Vue.jsとは？特徴やjQueryとの違いをわかりやすく解説／レバテックキャリア
What you can do with Vue
Vue has a variety of functions, such as being able to respond immediately to user input and being able to handle programs like components. These features make it possible to develop advanced screens, and can greatly improve productivity in development environments.
Demand for Vue
The demand for UI development using JavaScript is expected to continue to increase. The market value of engineers who can use Vue to improve development efficiency is high, so it is useful to learn it.
Swift
Swift is the successor to the Object-C programming language for developing apps for iOS devices such as the iPhone and iPad. It is a language used for development on Mac computers, and is specialized for developing apps for iOS. With the arrival of Swift, it is now possible to develop all iOS and Mac apps in Swift. In the future, it is expected that Swift will also be used for apps other than iOS apps.
Reference: 「Swift」とは？Appleが開発した新しいプログラミング言語の特徴／発注ラウンジ
What you can do with Swift
Using Swift, you can develop iPhone apps, iPad apps and Apple watch apps. If you are developing smartphone apps for the Japanese market, support for iOS is essential, so learning Swift will be useful.
Demand for Swift
In Japan, the market share of iPhones and iPads is high, and support for iOS is essential when developing smartphone apps. Furthermore, as more and more services developed in the future will be designed with smartphones in mind, the future for iOS engineers is bright. For this reason, it is a language that smartphone tool, app, and game developers should learn.
Scala
Scala is a relatively new language that makes use of the good points of Java and incorporates new mechanisms. It is popular among engineers because it has a small number of code steps and is easy to use. The number of Scala implementations in development environments, particularly in American IT companies, is on the rise, and it is expected to be used more frequently in Japan as well.
Reference: Scala / スカラとはどのようなプログラミング言語か？ 特徴、メリット、デメリット、活用事例を紹介／GaNEE
What you can do with Scala
You can do almost everything you can do with Java. Specifically, it is good for web app development, Android app development and business system development. What's more, you can write code with fewer steps than with Java, so you can also reduce the risk of bugs.
Demand for Scala
It is being used more and more in the US and other countries, but as of 2024 there are still not many examples of its use in Japan. However, there is an increasing trend to re-develop systems developed in Java using Scala, so the demand for Scala language engineers is increasing. If you learn it, you will be a highly sought-after engineer with rare skills, and your value in the job market will increase.
Dart
Dart is an alternative language to JavaScript developed by Google. It was a minor language for a while after its release, but it has come to the fore with the appearance of Flutter, a mobile application development framework developed by Google.
Flutter is currently spreading around the world because it allows you to develop smartphone apps for different operating systems all at once. Dart is used in Flutter, so its recognition has increased along with Flutter.
Reference: Webアプリケーション開発に用いられるDart言語とは？JavaScriptとの違い／CMC JAPAN
What you can do with Dart
When developing smartphone apps, you need to be able to support both Android and iOS. If you use Flutter, you can support both operating systems with a single code base. Dart is required when developing apps with Flutter.
Demand for Dart
If you can use Dart and Flutter in the smartphone app development field, productivity in Android and iOS development will improve. Demand for smartphone app development is expected to continue in the future, so it will be useful to learn it.
IT engineers should learn programming languages that are in demand!
In this article, we have introduced 11 programming languages that IT engineers should learn in the latest version for 2024. If you want to work as an IT engineer in the programming field, learning programming languages that are in high demand will increase your market value as an engineer. Each programming language has different features and capabilities, so learn a language that suits the field.
For excellent IT engineers with advanced knowledge and skills in programming languages, a global environment is recommended. If you choose from global IT job postings, you can find high-paying jobs with good conditions depending on your abilities. If you are looking for a job as a global IT engineer, use the job-placement agency for foreign IT engineers, “G Talent”. They have a wide range of IT engineer jobs that handle various programming languages.
