Freelancer profile translated to English.

Description

As a consultant, software architect, and software developer with over 25 years of experience, I work as an all-rounder across industries throughout Germany. I prefer to work in the industrial environment in the IoT sector.

Agile approaches

Languages

German
Native or bilingual
English
Conversational

Workplace preferences

Can work on-site

Mannheim (up to 50km), Mannheim (up to 10km), Bielefeld (up to 10km), Köln (up to 10km), Stuttgart (up to 10km)

Fresenius
Digitization of workflows
MEDICAL
August 2025 - December 2025 (4 months)
Digitization of workflows for a medical device manufacturer - Database expert and software developer
Customer size (30000) – Team size (10)
Revision of workflows in production for all ERP systems worldwide.
My solutions
• Documenting the current situation
• Concept for centralizing user requests
• Creating database relationship diagrams (30)
• Creating the data flow diagram
• Developing a target system to support the processes
• Ensuring parallel operation data exchange
using ETL processes – replication
• Optimizing database access
• Support and preparation of release changes.
Tools
• C#, Visual Studio 2022, Git, MS SQL 2022, TSQL, PostGres, DataGrip,
• Azure DevOps, Git, SQL Server Profiler
• Babtec, Ordat, NiceLabel, AP+
C# MS SQL Server Conception
Kreis Plön
Database legacy data migration
PUBLIC SECTOR
December 2024 - May 2026 (1 year and 5 months)
Plön, Germany
Customer size (650) – Team size (8)
There is neither documentation for the old software, nor are the developers available. The data is to be prepared for a new system. A long transition phase is to be ensured.
My solutions
• Creating the database relationship diagram
• Developing a service for file exchange
• Preparing the structures for new requirements
• Revising the old – building authority program in Delphi
• Securing documents in the DMS
• Ensuring parallel operation via data exchange
using ETL processes
Tools
• C#, Visual Studio 2022, Git, Delphi, MS SQL 2022, TSQL, DataGrip
MS SQL Server Coordination skills C#
MeQuEn GmbH
Development of a rule engine for healthcare
HEALTH AND WELLNESS
October 2024 - April 2026 (1 year and 6 months)
Part-time project – Software Architect
Development of a rule engine for the healthcare sector
Software developer and database developer
Customer size (over 5000) – Team size (12)
The goal is to be able to automate billing for hospitals. Rules from the EBM catalog are prepared to bill them automatically with data records from the KIS (Hospital Information System). Users should be able to set and adjust rules themselves.
My tasks
• Building the architecture
• Creating the rule engine
• Importing and exporting data with Excel
• Connecting data with Dedalus
• Building the user interface in a prototype
• Integrating various sources using ETL processes
• Creating WEB services for data provision
• Testing with Visual Studio and Nunit
Tools
• C#, Visual Studio 2022, Nunit, Git, Excel, MariaDB, DataGrip, Docker, PowerShell, Windows
Business analysis C# MySQL/MariaDB