Custom development · open source Java & Go

Built business-critical — on technology nobody can take away from you.

Roles, permissions, audit trail, multi-tenancy. Built with Spring Boot, Quarkus or Go — all open source, so you still own your code in ten years.

WHY OPEN SOURCE MATTERS HERE

An application that carries your business runs for ten years or more. In that time vendors change pricing, discontinue products or get acquired. An open-source stack removes that risk: the source is open, the community large, and operations do not hang on a contract.

How we proceed

1

Cut the domain

Before code exists the domain gets cut: which terms, which rules, which boundaries. Domain-driven design gives the application a structure still understandable years later.

2

Lay the foundation

Spring Boot or Quarkus on the JVM, Go for lean services. Plus PostgreSQL, Liquibase for schema migrations and Keycloak for identity — all open source and production-proven.

3

Secure & verify

Roles and rights centralised, every change in the audit log. Tests run against real databases in containers, not against mocks — what is green also works in production.

4

Operate & evolve

Containers on Kubernetes, metrics via Prometheus, traces via OpenTelemetry. The application stays maintainable because operations were considered from the start.

WHAT THIS ACTUALLY DELIVERS
0 €

licence cost for the stack — your budget goes into functionality, not maintenance contracts.

Your code

is yours. You can change teams at any time without rebuilding the application.

10+

years of perspective: Spring, Quarkus and Go have large communities and long support cycles.

Technologies

All open source — no licence costs, no lock-in.

Spring BootQuarkusGoPostgreSQLKeycloakLiquibaseTestcontainersKubernetes

Related

UW
YOUR DIRECT CONTACT
Uwe Winnwa
Sales · cloud37 AG

30-min intro call — free.
No standard pitch. I listen, ask the right questions and give an honest assessment — even if we are not the right partner.