Work Experience

Note

In accordance with standard contractual agreements and industry practices, I cannot disclose specific client names for projects undertaken through staffing agencies. This applies whether I worked as an individual freelancer or through my companies (Zipproth GmbH and acrion innovations GmbH). The descriptions below provide detailed insights into the nature and scope of my work while respecting these confidentiality requirements. Direct client engagements where disclosure is permitted are named explicitly.

Managing Director / Lead Developer Open Source Initiatives

acrion innovations GmbH, St. Ursen | since May 2023

Responsible for the conception, development, and administration of several complex open-source projects: Ditana GNU/Linux, zelph, Cbeam, nexuslua and acrionphoto. The work on zelph has been funded by NLnet’s NGI0 Commons Fund since August 2026.

Computer Vision Specialist

A Specialist in Laser Welding Technology, Germany | Jun 2023 – Feb 2024

Engineered and designed a high-availability 24/7 vision system to control laser welding processes via real-time image processing and hardware integration.

Senior C++ Software Engineer

A Leading Global Technology Company in Metrology, Heerbrugg | Mar 2022 – Apr 2023

Developed a new measurement mode for a high-precision coordinate measuring machine (CMM), processing real-time sensor data in a multithreaded C++17 environment.

Managing Director / Software Architect

Zipproth GmbH, Mindelheim | Jan 2014 – Nov 2021

Developed and marketed proprietary software, including Straton, a specialized 16-bit image processing software for astronomy, and various web platforms for data analysis.

Senior Software Engineer

A Global Leader in Medical Technology (Ophthalmology), Munich | Feb 2016 – May 2021

• Machine Learning & SCA (2019-2021): Extended patient data software (JavaFX) for annotating retinal pathologies for Deep Learning. Managed Software Composition Analysis (SCA) with Black Duck to ensure compliance for medical products.
• Image Processing & Vision Systems (2016-2019): Designed systems for automated visual inspection and verification of image processing algorithms in a GMP environment.

Senior & Lead Software Engineer

A Leading German Electronics Group (Test & Measurement), Munich | Mar 2006 – Apr 2015

• Lead Developer CI (2011-2015): Designed and developed a server-based CI framework (C#) for fully automated, remote hardware testing on measuring devices.
• Senior Software Engineer (2009-2011): Contributed to Windows software (C++) for controlling high-frequency measurement hardware and integrated a .NET numerical library.
• Embedded Software Engineer (2006-2009): Achieved a 7-fold speedup for a time-critical matrix multiplication using the SSE assembler instruction set for an embedded system.

Software Architect

A Major German Hydropower Engineering Firm, Heidenheim | Aug 2015 – Jan 2016

Developed an expert system with a Qt GUI to support the design phase of new hydropower plant facilities.

Software Engineer

A Provider of Construction Industry Software, Nuremberg | Jun 2015 – Jul 2015

Investigated memory access violations in a large C++ codebase and developed C#/C++/CLI analysis tools to support debugging.

Requirements Engineer

A Major German Semiconductor Manufacturer, Regensburg | Oct 2005 – Feb 2006

Translated requirements into UML diagrams (Rational Rose) and prepared specification documents for data management in chip manufacturing processes.

Test Automation & Image Processing Specialist

Leading Imaging Technology Corporation, Munich | Nov 2002 – Sep 2005

Initially engaged in test automation, I proactively identified and resolved critical errors in the vision system for automated red-eye correction. This achievement led to my transition to the R&D department, where I developed innovative image processing algorithms that substantially enhanced the correction feature’s quality. (The consumer imaging division was later restructured and ceased operations in 2005.)

Software Architect (Freelance)

Chess Program Aristarch | Feb 2002 – Oct 2002

Developed what was then the world’s strongest free chess program, featuring an optimized alpha-beta search. Published technical articles on algorithmic optimizations in chess programming.

Team Lead Software Development

jetpix GmbH, Puchheim | Jul 2001 – Jan 2002

Led a team of 5 developers in maintaining and advancing image processing and compression technologies.

Developer / Co-Founder (Freelance)

Wavelet Image Compression | Oct 1998 – Jun 2001

Developed an innovative wavelet-based image compression library that won an award in a c’t magazine competition. Co-founded jetpix GmbH to lead its technical development.