Modernize software
We transform your mission-critical legacy systems into modern architectures without putting your proven processes at risk.

Selected clients

Future-proof your software

Your legacy systems are the backbone of your business. Decades of domain knowledge and proven processes are encoded inside them. But when the original developers retire and modern requirements come knocking, that backbone can quickly turn into an Achilles heel.
The hidden cost of outdated systems:
Maintenance costs up to 70% higher than modern architectures
Talent shortage: experts who can maintain your software are disappearing from the market
Innovation bottleneck: AI and cloud services cannot be integrated
Compliance risk: new regulations are almost impossible to implement

The good news: a low-risk path into the future is possible.

Your legacy applications are incredibly valuable—they know your business better than any greenfield system. What's missing is a modern wrapper around that proven core. An architecture that combines the best of both worlds: the stability and business logic of your existing systems with the flexibility of modern technology.
  • Preserve business knowledge: decades of process expertise are retained and migrated into modern structures
  • Up to 70% faster development: modern architectures enable agile delivery and rapid adaptation
  • Seamless integration: AI, cloud services, and modern APIs finally become usable
  • Scalable architecture for growth: your software scales with your business—clean, stable, and future-proof.

Our approach

Workshop & architecture review
What we do:
  • Two-day workshop with your subject-matter experts and developers
  • Joint stocktake: what already works well? Where does it hurt?
  • Architecture review of your most critical systems
  • Prioritisation: what truly needs to be modernised?
Your benefit:
Clarity about the current state and a realistic roadmap. No castles in the air, but a doable plan with quick wins and long-term goals.
Step-by-step transformation
What we do:
  • Refactoring: components of the legacy system are gradually migrated into a modern service architecture
  • AI-assisted engineering: we leverage code generation and AI-driven refactoring for up to 3× higher velocity
  • Parallel operations: legacy and new run in sync until you are confident
  • Iterative knowledge extraction: with every module we analyse more of your domain
Your benefit:
Zero-downtime migration at a significantly higher development speed. Modern AI tools accelerate the transformation without compromising quality.
Pragmatic architecture
What we do:
  • Modern patterns: containers, microservices, domain-driven design, event sourcing, CQRS—where it makes sense
  • Cloud-ready, but not cloud-only: extensive experience with on-premises enterprise systems and cloud-native applications
  • Focus on maintainability instead of technology hype
  • Documentation and knowledge transfer from day one: we empower your team to take over
Your benefit:
An architecture your team understands and can operate. No vendor lock-in, no black box. You stay in control.

Case studies

DIN Media

Standards management application with 400,000+ users migrated

From a monolithic legacy system on outdated .NET foundations to an elastic cloud architecture.
Automotive group

Legacy systems in parts management

For a leading automotive manufacturer we examined one of the group's largest and most critical information systems. The Java monolith in parts management embodied over 40 person-years of development, was maintained by three different vendors—and had become barely maintainable.
After an in-depth business and architecture review we developed a plan with the domain team for a future-proof, scalable architecture. The existing application can now be migrated step by step—and minimally invasive—into a modern cloud solution while operations continue without disruption.
MedTech – SIMPI

Startup revolutionises onboarding for medical devices

How SIMPI, together with axio as development partner, improves patient safety by making medical devices intuitively explainable.

Questions & answers

Which tech stack do you offer?
We have deep expertise in the following technologies:
Cloud/backend technologies: Kubernetes, Docker, Java & Spring Boot, C# & Microsoft .NET, Python, Microsoft Azure, AWS
Web technologies: Angular, React, FontoXML
Databases & ECM: MarkLogic, Elasticsearch, PostgreSQL, Directus, Azure Cosmos DB, MongoDB, CoreMedia
AI: Keras, TensorFlow, FastAPI, Azure ML, vLLM, BGE-m3, Hugging Face Inference Server, MLflow
Additional technologies on request.
What advantages do you offer manufacturing companies?
We bring deep project and industry experience in mechanical and plant engineering, automotive, intralogistics, chemical production, and regulated industries.
We also have extensive know-how integrating machine-adjacent software and production systems (e.g. MES, ERP) and deploying modern technologies such as cloud, big data, and AI to realise your Industry 4.0 strategy. We likewise advise software vendors whose solutions power specific value-creation processes in manufacturing.
How can we modernise bespoke IT applications as cost-effectively as possible?
We help you modernise your bespoke software purposefully and cost-effectively. Through a staged approach (refactoring, modular migration, integration of modern technologies) we minimise downtime, reduce risk, and keep your systems maintainable in the long run. That keeps your costs low, lets you benefit from new capabilities sooner, and safeguards the future of your IT landscape. In a first consultation we'll happily discuss the right strategy with you.

Client testimonials

Sebastian Kriegsmann
Head of Digital Infrastructure and IT-Services (CIO)
Deutsches Institut für Normung e.V.

Working with axio concept GmbH proved to be a decisive step in our digital transformation.

Their deep understanding of our strategic goals and their ability to realise them with advanced AI solutions and digital building blocks have deeply impressed us.

About us

axio delivers digital solutions that drive growth, efficiency, and competitiveness.

Since our founding in 2017 we have helped mid-sized businesses and enterprises set new digital benchmarks.

We combine deep expertise in artificial intelligence, IT architecture, and software engineering with a keen understanding of your business model, revenue streams, and underlying processes.

Our team is made up of product visionaries, IT specialists, software architects, and data scientists. You can rely on us at every stage of your initiative, and for every question we have the right expert in-house.

Get to know us in person—book a non-binding consultation with us now. We look forward to the conversation!

Partnering with axio concept GmbH represents a major leap in efficiency and innovation for us. We value their expertise and look forward to continuing our collaboration.
Sebastian Kriegsmann, DIN e.V.

Let's talk about your modernization roadmap

Your contact person
Marco Bürckel
Managing Director
I look forward to discussing how we can modernise your legacy systems carefully while preserving your valuable business knowledge—and without disrupting day-to-day operations.
In a non-binding expert session we analyse your legacy landscape together and identify the most critical modernisation needs. We show you exactly how to transition your existing systems step by step and with minimal risk into a modern architecture—for future-proof IT, reduced technical debt, and sustainable maintainability.
  • 30-minute conversation tailored to your company
  • Collaborative discussion of your challenges with a senior software architect
  • Concrete ideas and suggestions tailored to your situation
Book your free introductory consultation now—we look forward to the conversation!