Kotlin Salary and Insights for 2025

What is Kotlin developer?

A developer in Kotlin, will be responsible for planning, design and development of apps and software using Kotlin. They will contribute at all stages of the development lifecycle and test and make necessary changes in features.

Kotlin developers make sure the designs are compliant with the specifications received, write efficient and well-designed code, and analyze, test and help with the integration of applications. Developers analyze software and solve applications and software problems that use Kotlin tools. They need to manage application development and support the improvement of it, such as detecting problems and suggesting technologies.

They also tune apps and systems for higher performance – squeezing out every bit of speed, finding opportunities for improvement – from code optimizations to feature additions when needed; to software updates.

Responsibilities of a Kotlin developer:

• Planning, designing and developing apps and software using Kotlin
• Contributing in all phases of the development cycle
• Testing and amending features when needed
• Ensuring that designs comply with specifications provided
• Writing well-designed and efficient code
• Analyzing, testing and assisting with the integration of applications
• Conducting software analysis
• Troubleshooting applications and software
• Managing application development
• Supporting continuous improvement of applications
• Investigating and suggesting technologies
• Optimizing apps and systems
• Identifying opportunities for improvement
• Optimizing code
• Adding new features
• Providing software updates

Kotlin vs Java

Kotlin does pretty much everything Java does, but does it better.

It’s more lightweight, more elegant, and more terse than Java, at least in terms of authoring data classes and callbacks. It’s also much safer, with null safety built-in as a major talking point.

The only concrete pro of Java over Kotlin is that Java is used more, and most of the documentation examples for Android are also in Java. For complete beginners, to learn Java is actually a slightly smoother ride. But that isn’t because Java is better, so this is hardly a reason at all.

Even though it’s tempting to pit them against each other in a cage match, Kotlin and Java compile to the same bytecode, so they can be used together in a single project.

This is why many experts believe they’ll coexist. At least for the time being.

Cross-Platform Development

Kotlin is a general-purpose programming language, which can be used for any type of development, including the server-side and client-side web, Android, and iOS. The reason why we can share code between different platforms in Kotlin is due to the fact that the language runs on JVM.

Flexibility

So by letting developers choose the style of their choice, Kotlin is as flexible as it gets: it is a multifaceted language combining functional and objective-oriented constructs, and it delivers on the improved programming experience.

Reduced Programming Time

Another of Kotlin’s advantages is that it removes all code which is repeated, and in addition, this language is very compact, concise and this in turn means that the writing process of the code is optimised, avoiding all repetition.

Skills of a Kotlin Developer:

• Expert knowledge in Kotlin and Java
• Hands-on experience with software development and app design
• Knowledge of databases
• Familiarity with web frameworks like GWT
• Proficiency in object-oriented fundamentals
• Strong backend programming skills
• Experience with SQL
• Knowledge of web development solutions
• Familiarity with XML basics
• Being informed on new language developments
• Having business knowledge of the industry they want to work in
• Strong communication skills
• Ability to work well in a team

Hire Kotlin Mobile Developer Experts