Jente Sondervorst
Staff Software Engineer at Moderne
Leuven, Flemish Brabant, Belgium
Summary
🤩
Rockstar🎓
Top SchoolJente Sondervorst is a Staff Software Engineer with nine years of experience building backend Java systems in supply chain environments and modernizing large codebases using automated transformation platforms. He combines deep legacy-mainframe knowledge—COBOL, CICS, DB2 and z/OS tooling—with modern Java/Spring development, enabling safe migrations and integration across heterogeneous stacks. At Moderne he works hands-on with OpenRewrite to modernize thousands of repositories, a role that leverages both his trainer background and practical, repository-scale automation skills. He is an active contributor to open-source projects like Backstage, where he added Kubernetes resource quota support and refactored LDAP catalog plugins to handle multiple configurations. Based in Leuven, Belgium, Jente brings a pragmatic mix of developer training, systems-level troubleshooting, and scalable engineering practices that help teams move legacy platforms into cloud-friendly architectures.
9 years of coding experience
7 years of employment as a software developer
Middelbare School, Sociale & Technische Wetenschappen, Middelbare School, Sociale & Technische Wetenschappen at Heilig Hart HeverleeFilm en televisie (Film and television), Film en televisie (Film and television) at Narafi - Nationaal instituut voor Radio & FilmGraduaat, Informatica, Graduaat, Informatica at Groep T - Internationale Hogeschool Leuven
English, Dutch, French
Stackoverflow
58reputation
5kreached
4answers
5questions
Github Skills (19)
ldap10
kubernetes10
back-end-development10
plugin-development10
backstage10
kubernetes-pods10
typescript9
configuration-management9
typescript-types9
typescripts9
hibernate-mapping6
maven6
hibernate6
orm6
mongodb-query6
Programming languages (6)
Github contributions (5)
backstage/backstage
Sep 2023 - Mar 2025
Backstage is an open framework for building developer portals
Role in this project:
Back-end Developer
Back-end DeveloperContributions:12 reviews, 5 PRs, 36 comments in 1 year 5 months
Contributions summary:Jente primarily contributed to the Backstage framework by adding support for resource quotas within the Kubernetes plugin. They modified backend and frontend code to include resource quota functionality, ensuring its integration with the existing Kubernetes ecosystem. Additionally, they refactored the catalog-backend-module-ldap plugin to support multiple configurations for user and group bindings. This involved adjusting the configuration structure to accommodate a list of user or group configurations, adding test cases, and refining the reading logic to handle the new configuration options. Furthermore, they addressed an issue by adding API reports and refactored the tests.
portalsinfrastructureopen-platformdxbackstage
Jenson3210/adventOfCode
Dec 2019 - Dec 2022
Contributions:69 pushes, 1 branch in 3 years
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.