Modernize existing software
I support the porting, refactoring, and step-by-step modernization of existing Windows and business software — without unnecessary full rebuilds.
Stabilizing business software, digitizing processes, and developing practical tools
I support companies in keeping their existing software stable, reducing manual workflows, and improving internal processes through practical digital solutions. The focus is on established business and Windows applications, interfaces, data flows, and solutions that integrate cleanly into existing processes.
Whether it’s a long-established desktop application, a complex interface landscape, or a legacy system that has become difficult to maintain: I work my way into existing solutions and further develop them pragmatically.
If a smaller, targeted solution is sufficient, I also implement individual tools, web solutions, or automations – always tailored to the actual workflow and without unnecessary complexity.
- Take over existing software safely
Analysis, bug fixing, refactoring, and reliable further development of long-established systems - Modernize in a maintainable and pragmatic way
Step-by-step improvement instead of a risky full rebuild - Reliable in live operation
Stable further development of desktop applications, Windows Services, interfaces, and device integrations
You know the goal – we work out the technology together
You know what should work better – but not which software you need?
Perhaps an existing program needs to be changed, a manual workflow should become easier, or you have an idea for a new application. You do not need to know which technology is required. Simply describe your problem or idea – together we will work out which solution makes sense.
Discuss your problem or idea
Problem or idea
→
Clarify together
→
Right solution
How can I help?
Integrate interfaces and services reliably
I develop and stabilize APIs, data flows, Windows Services, and device integrations so that systems communicate reliably and processes run smoothly in the background.
Further develop processes and systems
Analyze, stabilize, and systematically further develop existing applications, data flows, and internal processes.
Develop small tools and web solutions
Targeted implementation of web forms, small desktop applications, and practical helper tools for recurring tasks, data processing, and simpler internal workflows.
Current projects & modern solutions
Two current projects show how I combine long-standing experience with modern web, mobile, and integration development.
Interactive apartment navigator with 3D integration
An embeddable web-based apartment navigator combines interactive 3D selection with apartment lists, filters, and detailed information. The solution works on desktop and mobile and integrates into existing websites.
GetMeNotified – make events immediately visible
A self-developed notification product connects existing systems to an Android app via a REST API. It includes a customer portal, device and source management, secure QR onboarding, and a traceable event history.
Practical examples from real workflows
These examples show how individual software can support concrete business tasks – from accounting and planning to quality management and mobile data capture.
Accounting
Payment reconciliation, dunning and accounting export integrated.
Staff scheduling
Digital support for duty planning, availability and operational scheduling.
Certifications & audits
QM processes, evidence and corrective actions managed transparently.
Mobile data capture
Scanner solution with offline use and later synchronization.
Three typical starting situations
Many companies know that a process should work more easily – but not which technical solution is needed. That is not a problem.
You do not need to bring a finished specification. Often, a short description is enough: What takes time today? Where do errors occur? Which task is repeatedly done manually?
I support companies with simple homepages, web solutions, small desktop programs, data and Excel tools, interfaces and the further development of existing software.
Homepage & web programming
For small companies, self-employed professionals and businesses that need a simple, professional website or want to modernize an existing homepage.
Examples:
- Company website
- Contact form
- Service pages
- Simple web applications
- Small customer or inquiry areas
Small tools & desktop programs
For recurring tasks, Excel lists, data checks, file imports, exports or small administration programs.
Examples:
- Read and check Excel files
- Automatically convert data
- Create labels or PDFs
- Compare price lists
- Small customer or order management
Existing software & interfaces
For companies with existing programs, databases or grown systems that need to be extended, stabilized or modernized.
Examples:
- Existing Windows applications
- Databases
- Interfaces
- Import and export
- Modernization of old programs
Not sure which solution fits?
Many companies only know at the beginning that a workflow should become easier.
On the overview page, you will find the most important offers for smaller companies.
Typical situations
When existing software is involved
- Existing software is still running, but technically outdated
- No one in the team really knows the existing system well anymore
- An experienced developer is needed for a grown legacy system
When workflows are manual
- Many workflows depend on Excel, emails, or manual intermediate steps
- Data is entered multiple times or transferred manually between systems
- Internal processes have grown over time, but are not properly represented digitally
Additional information
For Recruiters and Staffing Partners
Profile summary, core skills, industries, engagement model and documents at a glance.
Let’s talk briefly — then you’ll know what the next step is.
A few lines are enough. I’ll get back to you with an initial assessment and a sensible next step.