cronn GmbH - wir entwickeln software

About Us

We are cronn - a Bonn-based software development company with branches in Hamburg and Białystok, Poland. Software development is our passion. We trust in Java, OpenSource and, last but not least, in our experienced team. All of this we deploy to bring our clients software that is key to their business, or to professionally consult them in issues regarding architecture, tools or approaches.

Services

Our References

Companies who put their trust in us:

„Zwei Dinge haben mir in der Zusammenarbeit mit cronn besonders gut gefallen: Das waren der sehr hohe Qualitätsanspruch aller Mitarbeiter, mit denen wir zusammengearbeitet haben und die sehr transparente Kommunikation und Projektabwicklung.”

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- Rainer Berg, ingenico Marketing Solutions GmbH

„Die Zusammenarbeit mit cronn war sehr konstruktiv und effizient. Wir haben gute Fortschritte gemacht und das Projekt zügig umgesetzt. Insbesondere sind mir die wöchentlichen Sprintmeetings in Erinnerung geblieben. Die agile Entwicklungsmethode war sehr gut für das Projekt geeignet.”

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- Henning Martin, Gründer von Demogate

„An der Zusammenarbeit mit cronn hat uns der direkte Kontakt mit den Entwicklern besonders gut gefallen. Dadurch wurde auf unsere Anforderungen individuell und professionell eingegangen – für uns war das Projekt mit cronn ein voller Erfolg.“

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- Martin Schöler, Leiter Containertechnik bei Hamburg Süd

Our Methods

Agile

Requirements change constantly, usually faster than you think. We're ready.

Testdriven

Automated tests not only don't lie, they provide security for changes and are a solid base for continuous integration.

Continuous

Things that are painful should be done more often - but not manually. Jenkins takes that off our hands.

CleanCode

Programming languages were invented to find solutions to complex problems. That's what they should be used for.

Our Tools

Java

The standard for efficient and stable server software.

Spring

Has imposed and popularised dependency injection in the Java Enterprise field. Always one step ahead of JEE and all other competition.

Hibernate

JPA is the standard, Hibernate is the implementation - the most established solution.

Jenkins

The standard for open-source continuous integration.

Git

More than 65 millions of GitHub repositories and 24 millions of registered developers speak for themselves.

SonarQube

The data warehouse for software development, the cherry on the cake for Jenkins.

Gradle

The best Java build tool. Fastest feedback thanks to incremental and parallel builds. Essential for continuous integration.

Docker

In a container Software works on all devices equally.

Kubernetes

Automatic scalability and orchestration of containers.

AWS

Be global within minutes.

Typescript

All benefits without the problems of Javascript.

Cucumber

The BDD-tool which combines specification and test documentation.

Open Source

We believe in common progress through open-source software.. That's why we support existing projects and have published some of our most useful tools ourselves.