Services

I work on new systems as well as existing ones. The technology follows your system, not my own frameworks.

Cloud and infrastructure
I move systems from managed cloud services to servers at European providers and run them on Kubernetes. If you prefer, I also set systems up on AWS.
Cloud providers subject to US law can be required under the US CLOUD Act to hand over data to US authorities, even if it is stored in data centres in Europe. Where that rules a provider out for you, I set up the infrastructure with European providers.
Performance optimisation
I measure where your system loses time under load and remove the bottlenecks. The aim is the same load with fewer resources.
Software architecture
Modular monolith, distributed system, microservices or a combination: I design the architecture that grows with your demand and stays easy to change.
Backend development
Backends, APIs and integrations with external services such as payment providers, in C# with .NET or Java with Spring.
Security
I design security into the architecture from the start: isolated components, access control on every connection, vulnerability testing and data protection under the GDPR.

How an engagement works

Intro call
You describe your system and your goal. I tell you whether and how I can help, and which offer fits.
Written confirmation
After the intro call, I confirm scope and fixed price in writing before any work starts.
Delivery
The agreed duration starts once all required access is in place.
Results and handover
You receive all agreed results. Any scripts and documents created along the way belong to you.

Each offer has a fixed scope and a defined result. After the intro call, I confirm scope and fixed price in writing before any work starts.

€1,9905–10 working days

For deciding whether moving your system to European providers pays off. Staying where you are can be the result, too.

Scope: one existing environment with one provider
up to around 20 services
Result: running costs today and after the move
one-off costs of the move
dependencies of each service
target architecture with European providers
migration path in stages
fixed-price quote for the migration
Prerequisites: current invoices
an export of the resources
an overview of the architecture
Not included: the migration itself

€3,90010 working days

For systems that slow down under load or are about to face more of it.

Scope: one production-like environment
up to 3 critical flows
up to 5 named issues
Result: reusable load test scripts
response times under load and the bottlenecks with their causes
a capacity estimate
measures with their expected effect
closing session
Prerequisites: access to the test environment and monitoring from day one
test data
Not included: the cost of generating load
multiple regions and sharding
a guaranteed improvement
implementing the measures

from €3,90010 working days

For new projects and grown systems, before major decisions are made.

Scope: one system
up to 5 guiding questions
up to 4 interviews
up to around 500,000 lines of code
Result: report with prioritised risks and a roadmap
summary for management
closing session
Prerequisites: read access to repository, documentation and metrics
named contacts
Not included: implementation and code changes
penetration test or formal security audit

€39090 minutes

For one specific question or decision where a second expert opinion helps.

All prices are final. Under § 19 UStG (German VAT Act), I do not charge VAT.

What happens if my system is larger than the scope of an offer?: Then you receive a separate fixed-price quote before any work starts, never halfway through.
How confidential is the work?: I treat everything I receive from you as confidential. If you wish, I sign a non-disclosure agreement in advance.
How does the collaboration work?: Remotely, by video call, email and in your own tools such as repository and ticket system, in English or German.