Kafka Open Source Developer

Full time
Software Development
Hiring from: Europe

We are now looking for a Kafka core and ecosystem developer / Open Source database enthusiast to join our committed and talented team! This position is open to candidates in the Helsinki or Berlin area and to remote candidates in Europe.

Aiven offers and operates Apache Kafka and other Kafka ecosystem open source components like Kafka MirrorMaker and various Kafka connectors. Support for Apache Flink is in the near term roadmap.

Your role is to directly contribute to the open source Kafka ecosystem projects. You will be developing new features, writing plugins, connectors and other extensions, and investigating and fixing issues with the Kafka and other Kafka ecosystem components. All your work is contributed to the open source community.

You will also work as a bridge between the Kafka community and Aiven, to drive fixes and features important to Aiven. Previous experience on working with open source communities would help in the role but is not absolutely necessary.



  • Excellent development skills in Java and Scala (SE; Java EE, Spring, or Hibernate knowledge is not required)

  • Hands-on experience with some of the following systems: Apache Kafka (including Connect and MirrorMaker), Apache Flink or Apache ZooKeeper

  • Experience in using Linux in development

  • Fluency in English, verbal and written


What we value:

  • Prior contribution to Apache Kafka, Apache Flink, Apache Cassandra or Apache ZooKeeper codebase, other big open source Java projects

  • Good understanding of security (software, networking)

  • Distributed systems knowledge



What we can offer:

  • A fast growing tech company with plenty of opportunities for everyone to develop and progress your career

  • Lots of autonomy to be creative and work “your way”

  • Participation in employee stock option plan

  • Relocation package

  • Mobile phone and subscription

  • Flexible working hours

  • Cool Office in the centre of Berlin (Prenzlauer Berg) and remote working flexibility

  • Office snacks, soft drinks, treats and fruits

You will be part of a highly-skilled, tight-knit team, making your contribution essential to what is becoming a great success story. If you’re interested, send us your application along with a link to your GitHub profile.


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