Jonathan Lannoy is a Full Stack Java Architect with 11 years of professional experience designing and delivering enterprise-grade Java applications from Belgium. He has progressed from Java developer roles at Smals to technical architect positions and now leads full-stack architecture at Zileo, blending backend solidity with pragmatic system design. An active open-source contributor, he has improved Ninja Framework's Freemarker integration, configuration handling, and validation—demonstrating attention to developer ergonomics and robust error messaging. Comfortable across the stack, Jonathan pairs hands-on coding with architecture leadership, favoring clear configuration and test-driven improvements that reduce runtime surprises.
11 years of coding experience
12 years of employment as a software developer
Graduat en informatique de gestion, Graduat en informatique de gestion at Haute Ecole de Bruxelles
Ninja is a full stack web framework for Java. Rock solid, fast and super productive.
Role in this project:
Back-end Developer
Contributions:69 commits, 47 PRs, 2 pushes in 4 years 2 months
Contributions summary:Jonathan primarily focused on enhancements to the Freemarker template engine within the Ninja framework. Their contributions include introducing configuration options for file suffixes, integrating properties from the application.conf file, and updating the changelog to reflect these changes. They also made adjustments to the test suite, and enhanced exception messages related to the configuration. Further improvements were added in relation to body parsing, validation handling and other minor adjustments to the code base.
Contributions:39 commits, 32 pushes, 8 tags in 5 months
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Jonathan Lannoy - Full Stack Java Architect at Zileo