Is Kotlin good for back-end?

Yes, it is good for Back-end as well as Front-End . Kotlin is a statically typed programming language that you can use in front-end, back-end, and Android development.26 Ağu 2019

Kotlin applications can be deployed into any host that supports Java Web applications , including Amazon Web Services, Google Cloud Platform, and more. To deploy Kotlin applications on Heroku, you can follow the official Heroku tutorial.

When you start to work with Kotlin on the backend, you have several options at your disposal. If you choose to use a library written in Kotlin, you get some major advantages: there will be no compatibility issues related to the language you use since everything is written in Kotlin .