About me

Hello, I’m Eugene Petrenko, human. You may also know me as @jonnyzzz. In real life, I’m also Evgeny Petrenko and Евгений Петренко.

I like software development, speaking at conferences, blogging and designing and creating new systems.

I work at JetBrains on the Developer Advocacy team.


Eugene is a software developer, Ph.D., speaker, and blogger. He is working at JetBrains on the Developer Advocacy team and contributing to open source. His passion includes software architecture, server-side, clouds, AWS, production, programming languages. Eugene speaks and works with Java, Kotlin, Go, C/C++, Qt, .NET, Web. He started using Kotlin before trait was renamed to interface. Eugene has been a Kotlin fan fun for years and completed his first production Kotlin code back in 2013.

I have another bio at my LinkedIn

I’m a father and software developer. In 2009 I defended my PhD thesis in computer science from Saint Petersburg state university. I work in many fields including Java, Android, server-side, .NET, C#, Linux, Kotlin, Spring Framework, SQL, clouds, web, docker.

You may find several photos of me here and there.


German Language B2 from Goethe Institute, Munich, Germany

Human Story

I’m working in software development and IT for more than 15 years.

At JetBrains since 2004. Participated in several well-known products, including ReSharper, TeamCity, Upsource, Toolbox App and other (yet) internal projects.

I write code daily in different languages, including (but not limited to) Kotlin, Java, C/C++, Go, JavaScript.

You may find some of my thoughts on Blog, projects, talks and contributions. Ping me via any of other social networks listed on the website footer. I spend my free time with family and kids, traveling, taking courses on Coursera and edX, doing open source and fun projects. Check out my GitHub profile. I play in codefights. You may check out my LinkedIn profile.

I like to talk at conferences. You may invite me to speak at your event too.

Saint Petersburg, Russia is the city I grew up. I studied at Saint Petersburg State University, at the Faculty of Mathematics and Mechanics. I got Ph.D (in russian) in computer science in 2009.

Nowadays I live in Munich, Germany.

Eugene Petrenko bio photo