Freelancer profile translated to English.

Description

Are you looking for a developer who understands complex requirements and implements them into stable, scalable solutions? I support companies, startups, and agencies in developing backends, APIs, data pipelines, and AI services that run reliably in production.

How I can specifically help you

• Automation & processing of Excel/CSV data

• Development of high-performance APIs & backend services (C#, .NET, Python)

• Database design & optimization (PostgreSQL, large data volumes)

• AI-powered functions for analysis, text processing & automation

• Cloud deployments & clean DevOps setups (Azure, Containers, CI/CD)

⸻

What makes me special

• Pragmatic solutions instead of buzzwords

• Clear communication & cleanly structured code

• Focus on performance, maintainability & scalability

• Experience with complex, production-near systems

⸻

Typical projects & results

• Automated data processes → significantly less manual effort

• Fast search & analysis functions across millions of data records

• Robust APIs that grow and remain expandable

• AI features with real benefit, not just demo character

If you are looking for a developer who thinks along, takes responsibility, and delivers reliably, let's talk.

Languages

German
Native or bilingual
English
Conversational

Workplace preferences

Remote only

Primarily works remotely

joinmedia
Senior Software Developer
DIGITAL AND IT
June 2016 - Today (10 years)
Mülheim (Ruhr), Germany
C# / .NET: Development & stabilization of REST APIs, worker services, microservices
• Python: Data processing, automation, imports, scripts
• APIs: Design, debugging, performance fixes, integration of external services
• Data & DBs: PostgreSQL, large data volumes, clean imports & queries
• ML / AI: Training models, fine-tuning, productive integration (not research toys)
• Cloud & DevOps: Docker, CI/CD, operation & error analysis
PostgreSQL Microservices ci-cd-management C# API
IBM iX
Software Developer C#
February 2016 - July 2016 (5 months)
Düsseldorf, Germany
Sitecore C# development at ecx.io with a focus on high-performance, scalable web solutions and clean backend architecture.
C# backend-service-development software-architecture
Fraunhofer-Gesellschaft
Application Developer
August 2010 - February 2016 (5 years and 6 months)
Oberhausen, Germany
Application development at Fraunhofer UMSICHT: Development and maintenance of internal software solutions to support research projects.