About us

Codeboje helps developers become better at building APIs with Spring. By providing pocket guides, online tutorials, a newsletter, coaching and training for individuals and companies.

The domain has a long history, and there might be a couple of odds to the new focus :-)


Jens started the first version of codeboje somewhere in 2004 as a wiki for common developing tasks faced day in and day out at work. His goal was to provide a resource for developers he has worked with. Unfortunately, none of them wanted to join, so it eventually became a private wiki.

Sometime in 2007 it was revived as a fun project by two experienced Java guys who still enjoy coding in their spare time and exploring new things outside of the work related field. We explored Python, game development, algorithms, tools and more.

After a break, we are back and refocussed on providing value for people building APIs.


Founder, owner, and currently the only writer. He loves dabbling with code and exploring new terrains; be it code, ways to build better teams and software or personal development. As a longtime Java guy, he helped companies in becoming better at making software (with a focus on APIs) in the role of a software architect. He moved from employee to building his own business and now helps developers becoming better at building APIs with Spring.


Started the blog together with Jens and is a long time partner and writer. He developed pySVG and in his day job he’s now doing IT management and Cloud Consulting in a three-letter company.