Modernization without jeopardizing ongoing operations

Established IT environments cannot be replaced overnight. A modern platform turns modernization into a controlled process rather than a risk.
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In the Day-to-Day Reality of Modernization
Where Legacy Systems Meet the Need to Move Faster

Modernization rarely fails due to a lack of will, but rather because of specific bottlenecks in day-to-day operations. Three situations illustrate where a modern platform makes all the difference.

Role

An established application portfolio cannot be replaced all at once. A realistic modernization path transitions systems step by step without jeopardizing ongoing operations.

Role

Developers waste time on infrastructure tickets instead of working on the product. A self-service platform gives teams the tools they need to deliver faster on their own.

Role

Every exception in operations takes away capacity that could otherwise be used for further development. A standardized platform reduces operational complexity rather than requiring you to manage it.

Technological Context
Challenges Typically Faced by Mature IT Environments

Legacy systems are rarely the actual problem; rather, it is the lack of standardization across them. Different operating models, accumulated dependencies, and manually maintained exceptions increase operational complexity with every new application. Kubernetes has established itself as the de facto standard for running modern workloads, but it requires specific operational expertise that not every team can build up alongside their day-to-day business. Compliance requirements such as the GDPR, BSI C5, and—for companies above a certain size—NIS2 apply regardless of the chosen architecture and should be built into the platform from the start, not added as an afterthought.

Sovereignty
Modernization Should Not Lead to the Next Form of Dependency

Those who leave legacy systems behind should not enter into a new dependency that is just as difficult to break free from. Open standards keep the door open for the next transition.

Kubernetes and OpenStack as the foundation. What the team builds today will remain transparent and under their own control tomorrow.


Workloads are not tied to a specific manufacturer. Switching to another provider at a later date remains technically feasible—it is not merely a contractual guarantee.


Proprietary managed services offered by individual hyperscalers often create more dependency than their short-term convenience is worth. Open standards prevent this from the start.


The same cloud stack runs on-premises, in the public cloud, or in a hybrid environment. Legacy systems do not have to be fully migrated in a single step.


If secunet takes over operations, this is done exclusively in certified data centers located in Germany.


From the first cloud-native app to legacy system replacement: three operational stages

Not every application requires the same level of operational maturity. The classification is based on how business-critical a system already is or is expected to become.
Public Cloud

For new, cloud-native applications and initial modernization efforts. Full scalability with operations based in Germany.

Managed Kubernetes

A highly available platform for migrated core systems, offering operational expertise instead of time-consuming in-house management.

Private Cloud AI

A self-sufficient infrastructure for AI-powered product development, without sharing company data with external providers.

Projects & References

secunet cloud serves customers in the SaaS, e-commerce, and media industries who rely on rapid scaling and reliable Kubernetes operations.
SaaS-Platform

Managed Kubernetes for a growing SaaS platform with high requirements for scalability and availability.

E-Commerce

Cloud infrastructure for an online retailer with seasonal traffic spikes and ongoing development.

Digital Media Company

Operation of a news portal with high and irregular traffic volumes.

Zertifizierungen & Standards

IT-Grundschutz
ISO 27001
ISO 27017
ISO 27018
BSI C5 Type 2
Contact request

Let's talk about your modernization path

Whether it’s your first cloud-native application, a Kubernetes migration, or a complete platform replacement: We’ll work with you to assess your needs.

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