Claus Ibsen
Senior Principal Software Engineer at Apache Software Foundation (ASF)
Esbjerg, Region of Southern Denmark, Denmark
Summary
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Rockstar
Top expert inJava Enterprise Development and Integration Technologies
Claus Ibsen is a Senior Principal Software Engineer with 18 years of experience, now at IBM and long active as an Apache committer and member. He is the lead engineer on Apache Camel and author of the Camel in Action books, combining deep Java integration expertise with practical low-code DSL work. Claus blends back-end systems design with full‑stack contributions—ranging from Camel core and Quarkus extensions to the Apache Camel website and Hawtio console. A Java Champion and frequent conference speaker, he’s known for improving developer ergonomics such as lambda-style DSLs and robust error handling/logging. His contributions span both maintenance and feature work across high-profile projects like ActiveMQ and camel-quarkus, demonstrating sustained impact on open-source integration tooling. Based in Denmark, he pairs technical authorship with hands-on engineering and community leadership.
18 years of coding experience
Stackoverflow
56,521reputation
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1,898answers
2questions
jetty
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java
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logging
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maven
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routes
top-1%
Github Skills (62)
unit-testing10
camelcase10
debug10
javascript10
jms10
integrate10
website-development10
spring10
testing10
component-development10
mq10
apache-camel10
integrations10
java10
javas10
Programming languages (12)
Github contributions (5)
apache/camel
Mar 2008 - Jan 2023
Apache Camel is an open source integration framework that empowers you to quickly and easily integrate various systems consuming or producing data.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4754 reviews, 27704 commits, 5951 PRs in 15 years
Contributions summary:Claus implemented and updated Java code related to the Apache Camel integration framework, specifically within the context of the camel-jbang and camel-xml-io-dsl components. The primary focus appears to be on improving the functionality of the Java DSL with the route definition and applying customizations using Java lambda style for low-code usage. Further efforts include the enhancement of the logging functionality for error handling and validation.
integrationapache-camelintegration-frameworkapachecamel
apache/camel-examples
Mar 2008 - Dec 2022
Apache Camel Examples
Role in this project:Back-end Developer
Back-end DeveloperContributions:47 reviews, 926 commits, 49 PRs in 14 years 11 months
Contributions summary:Claus contributed to the Apache Camel examples repository. Their work included the removal of unused imports, the application of patches, and fixing a mistyped URI within the examples. They also applied patches with contributions from others, indicating a role focused on code maintenance, bug fixing, and integration of contributions within the framework.
integrationparquetapache-camelapachedatastream
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