I'm František - Kotlin / Spring engineer focused on building scalable backend systems and real-world products.
I enjoy designing clean APIs, working on architecture and turning ideas into working software.
• Backend engineer at Green:Code (Škoda Auto group)
Event-driven systems, high-throughput processing, distributed architecture
• Building CephDetail - fullstack SaaS platform for booking, CRM and analytics
Kotlin, Spring Boot, WebFlux, GraphQL, MongoDB, Next.js, Docker
• Interested in:
- scalable backend architecture
- GraphQL APIs
- observability & reliability
- SaaS products
- clean code & maintainable systems
Previously contributed to open-source Minecraft ecosystem (libraries & minigames)
Built and operated project hoz.network – great playground for experimenting with new technologies.
Kotlin • Java • Spring Boot • WebFlux • GraphQL
MongoDB • PostgreSQL • Docker • REST APIs • CI/CD

