Why I built beanquery: a whitelist-first query API for JPA
Generic filter endpoints over JPA entities are convenient and dangerous. beanquery flips the default: nothing is queryable until you say so.
Java & Spring Boot developer building open-source tools, with AI in my daily workflow.
I’m Mirek, a software developer from Poland with 20 years of professional Java experience: from banking systems at Asseco, through leading a development team, to running my own company, REXOFT. Today I work as a senior Java developer on integrations, publish what I learn as open source (beanguard, beanquery, beanboot) and work with AI every day, while keeping the architecture, and the responsibility for it, in my own hands.
Featured open source
beanguard
Licensing system for Java/Spring Boot apps: issue, encrypt and verify licences with a self-hosted server, admin panel and customer shop.
beanquery
Whitelist-first REST query API over JPA entities: annotate your entities, get /metadata and /query endpoints with safe filtering.
beanboot
Spring Boot auto-configuration for users and groups, JWT auth, audit logs and distributed scheduling.
Licensing a Spring Boot app with beanguard
How beanguard issues, encrypts and verifies licences for Java applications, and how you enforce limits and features with annotations.
Working with Spring Boot and AI every day
What I hand to AI, what I keep, where it goes wrong, and the two files that keep Claude on course.
Work
- Company
- HCM Deck
- Role
- Senior Java Developer
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- Company
- REXOFT
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- Owner & Developer
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- Company
- Asseco Poland
- Role
- Senior Java Developer
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- Company
- Outcom
- Role
- Team Leader
- Date
- Company
- Asseco Poland
- Role
- Java Developer
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