Leon Pennings
25 years modeling domains, designing and implementing java applications in enterprise & startups. Helping teams build systems that evolve, not explode. DM me if you want clarity before chaos.
Education
Eindhoven University of Technology
Work
Java Solutions Architect and Software Engineer
Badges
4 Week Community Wellness Streak
Keep contributing to discussions by posting at least 2 comments per week for 4 straight weeks. Unlock the 8 Week Badge next.
2 Week Community Wellness Streak
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Java
Awarded to the top Java author each week
1 Week Community Wellness Streak
For actively engaging with the community by posting at least 2 comments in a single week.
Writing Debut
Awarded for writing and sharing your first DEV post! Continue sharing your work to earn the 4 Week Writing Streak Badge.
Skills/Languages
Enterprise Java, domain-driven design, rich domain models, SQL data modeling, semantic HTML, system maintainability, refactoring, long-term architecture thinking.
Currently learning
Challenging my habit of using rich domain models everywhere. Looking for a better alternative — but so far, nothing matches their clarity and long-term stability.
Available for
Architecting maintainable systems, domain-driven design guidance, codebase refactoring, strategic technical direction, and high-leverage Java development.
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