The following examples show typical assignments I have worked on across different industries. For confidentiality reasons, some clients and systems are presented in a shortened or consolidated form.
The focus is on business-critical software that must operate reliably in day-to-day use: existing Windows applications, interfaces, databases, internal business processes, device integration, and gradual modernization.
For some areas, dedicated example pages provide a more detailed description of the initial situation, implementation, and operational benefits.
Industry: Education / Administration
Task: Design and development of an ERP system for courses, participant management, billing, documents, instructors, bank imports, accounting exports, quality management, and internal processes.
Technologies: C#, MSSQL, MySQL, MariaDB
Benefit: Central platform for numerous administrative and back-office processes, including automation, multilingual support, and long-term evolution.
Industry: Healthcare, hospitals, nursing homes, home care
Task: Development and long-term enhancement of a workforce planning system including shift scheduling, demand planning, time tracking, payroll, and routing module.
Technologies: Visual Basic, Visual C++, SQL Server
Benefit: Multilingual, business-critical software for complex planning and billing processes in ongoing operations.
Industry: Fuel stations / retail / international rollout
Task: Capture of goods receipt, inventory, orders, quantity adjustments, and label lists via mobile app with backend integration and synchronization.
Technologies: C++, C#, Xamarin for Android, MFC, Windows CE, Android
Benefit: Productive use in an international fuel station environment across multiple countries with continuous development.
Industry: Pharmacies / healthcare
Task: Development and enhancement of pharmacy software for patient care, medication management, safety checks, web service integration, POS interface, and documented alerts.
Technologies: Visual Basic 6, VB.NET, SQL Server, SOAP, WCF
Benefit: Functionally demanding software used by multiple pharmacies with additional safety logic for consultation and documentation.
Industry: Transport / infrastructure
Task: Porting, maintenance, and further development of toll collection software and related services, drivers, and integrations for technical components.
Technologies: C++, C#, MFC, Informix, OPC UA, OData, web services
Benefit: Long-term use in robust infrastructure with integration of barriers, displays, printers, cameras, and other technical components.
Industry: Food retail
Task: Development of an application that reads RFID tags in refrigeration units and transmits product IDs and expiration dates to a central system.
Technologies: C#, Windows service, RFID integration
Benefit: Real-world deployment in European retail environments with direct device integration at the point of sale.
Industry: Back office / logistics / administration
Task: Extension of an existing CRM/Office solution with free text fields, credit notes, invoice lists, editable address headers, calculation logic, and maintenance contract management.
Technologies: C#
Benefit: Targeted functional enhancement of existing business software instead of full redevelopment.
Briefly describe which application, interface, database or workflow should be further developed, stabilized or modernized.
