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What is Kotlin?


Kotlin was formed as an idea in 2011 at JetBrains - who famously created IntelliJ IDE which later became the basis for Android apps. By this time, Java was popular and in use, but the engineers at JetBrains wanted to create an alternative language that filled in the gaps of limitations that Java had. However, this new language had to 100% be compatible with Java. They attempted to create a Java-compatible language called Scala but it was too slow to be used effectively, so they created their own language. The first released version was in 2016.


Kotlin is an open-source statically-typed programming language that supports both object-oriented and functional programming. It has replaced Java in many projects where it was more appropriate to use. Kotlin is mainly used in Android development and the official Android IDE supports it completely. It is also used in back-end web development, full-stack web development, data science, and multi-platform mobile development.

Here are some of the ways that Kotlin can be used by companies:

Android app development: Kotlin is a popular choice for Android app development, as it is fully compatible with the Android platform and offers several advantages over Java, such as null safety and better type inference. Many companies have adopted Kotlin for their Android app development, including Google, Pinterest, and Square.

Server-side development: Kotlin can also be used for server-side development, either as a replacement for Java or alongside it. Kotlin has good interoperability with Java, and it has several web frameworks, such as Ktor and Spring Boot, that make it easy to build web applications and APIs.

Desktop application development: Kotlin can be used to build desktop applications, such as tools or utilities, using the JavaFX library or other UI frameworks. Kotlin has good support for functional programming, which can make it easier to write concise and maintainable desktop applications.

Game development: Kotlin can be used to build games, either for the JVM or for other platforms, such as Android or iOS. Kotlin has several game development libraries, such as KTX and LibGDX, that can help developers build games more efficiently.

Machine learning: Kotlin is also being used in machine learning projects, thanks to libraries like KotlinDL and Koma, which provide support for neural networks and numerical computing.


Java has been around for more than two decades so it is very widely used, but the good thing for Kotlin which runs on Java Virtual Machine (JVM) is that it is interpolable with Java. Every library, framework, or tool that works with Java will work with Kotlin, expanding the resources further. Now that the two are compared, Kotlin is more concise than Java, it is easier to maintain, easier to read, and easier to apply changes to when needed. Other reasons developers and businesses may choose Kotlin include the strong community, no runtime overhead, safety when developing, and more!

Dirox Offshore Kotlin Services

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Why Outsource Kotlin Development?

Flexible & Scalable
Get the development resources you need when you need them. Upscale or downsize your outsourced coding team and manage their time according to your schedule, whether it's by the day, month, or longer.
Top-Notch Code Quality
Our developers work hand in hand with our Quality Assessment department to make sure that delivered code have been thoroughly tested and optimized for the best performance and reliability.
Cost Effective Solutions
Hire highly-skilled software engineers from Vietnam at a fraction of the cost of in-house hiring. Save money on recruiting, training, infrastructure, and turnover, while enjoying the competitive offshore rates of Southeast Asia.
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Start your next project in no time at all with minimal downtime. Our teams are always ready and communicate efficiently with you, providing proactive feedback and reports throughout the project.
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We offer various organizational frameworks to best accommodate your goals and needs for customized services.
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We work with you to define a detailed scope of work based on your requirements and a fixed timeline, then deliver that exact scope for a fixed price.
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With our à la carte model, you have access to the offshore resources you need when you need them, and for the duration you require, all at our standard rates.
Build, Operate & Transfer
We build and manage tailored legal entities for you, handling everything from team composition to HR and accounting. And when the time is right, we transfer the entire department to your company.
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Your Questions About Kotlin

Have other questions? Get in touch with our team via contact@dirox.com
What is the biggest difference between Kotlin and Java?

Kotlin and Java are object-oriented programming languages, but Kotlin, unlike Java, is also a functional language. What are the characteristics of a functional language? It has first-class functions, meaning functions can be used as values in the code. It also has immutability, which encourages the use of variables where the values cannot be changed. This will improve the reliability and performance of the developed program. Lastly, functional languages have no side effects as pure functions always return the same result.

How is Kotlin used in data science?

Data Science has become important for the growth of businesses, including increasing their performance, through accurate predictions of trends, customer behavior, and so on. Early before Kotlin, data scientists used Java to crunch data so it makes sense for a language similar to Java to be used in this line of work as well. Data scientists use the Java libraries that they would use with Java, but write the code in Kotlin. Many tools used by data scientists support Kotlin.

Which companies have used Kotlin?

Kotlin is used by many global companies, such as Google, Amazon, Netflix, Pinterest, Uber, Trello, and more. On Kotlin’s website, they highlight their use in Gradle, Corda, Evernote, Coursera, Spring, Atlassian, and so on. Kotlin is becoming a more popular choice every year and more companies from various industries choose to use it. 

What are the drawbacks to Kotlin?

While this programming language increases productivity, is maintained easily, and is more reliable, there still are some drawbacks. It offers minimal learning opportunities with minimal tools for program language learning. In certain circumstances, Kotlin will run faster than Java, but when it comes to neat building, Java is still a better option. Despite its growth in popularity, there are still not enough Kotlin developers to recruit. At Dirox, our developers have experience in building software programs with Kotlin. Consult with us to learn more about where Kotlin fits in your project and the rates of our developers.