Profile

I have a passion for software defined architectures and "change by design" operating models. The paradigm "it works on my machine" was always frustrating. I am very happy about the development that now everything can be described as code.

With a cloud-native mindset the IT has already changed and will continue to change. Loosely coupled architectures with open interfaces enable flexibility and reduce vendor lock-ins (even for typcially traditional IT areas). I like to design and build such systems/platforms with a high degree of automation starting from the development environment (e.g. Git, CI/CD, container registry) ranging to operations (e.g. automated installation, automated updates with zero-downtime, self-services).

I talk/discuss passionate about how to bring this mindset into an organization and want to discuss new trends in technology. The seemless and effortless use of technology is the goal so that business can concentrate on value-creation. Interested? Let's talk. I am looking forward to it.

Professional Experience

since 2020

Head of Digital Transformation & Digital Commerce Solution

thyssenkrupp Materials Services GmbH
2016-2020

Head of IT Strategy

thyssenkrupp AG
2011-2015

Project Manager

Schenker AG
2007-2011

Lead Developer

T-Mobile International AG
2006-2007

Consultant

Winterheller Software GmbH
2005-2006

Graduate research assistant

Rheinische-Friedrich-Wilhelms Universität Bonn
1999-2004

Developer

Royal Bank of Scotland (RBS)
1999-2004

Student research assistant

Rheinische-Friedrich-Wilhelms Universität Bonn

Publications

2011

Towards Usable Client-Centric Privacy Advisory for Mobile Collaborative Applications Based on BDDs

Mohamed Bourimi, Jörn Ossowski, Dhiah el Diehn I. Abou-Tair, Stefan Berlik, Dirar Abu-Saymeh
2010

JINC – A Multi-Threaded Library for Higher-Order Weighted Decision Diagram Manipulation

Jörn Ossowski (Ph.D)
2008

A uniform framework for weighted decision diagrams and its implementation

Jörn Ossowski, Christel Baier (published in STTT)

Partially-shared Zero-Suppressed Multi-Terminal BDDs: Concept, Algorithms and Applications

Kai Lampka, Markus Siegle, Jörn Ossowski, Christel Baier (published as TIK)
2006

Symbolic Reasoning with Weighted and Normalized Decision Diagrams

Jörn Ossowski, Christel Baier (published in Calculemus 2005)
2010

Symbolic Representation and Manipulation of Discrete Functions

Jörn Ossowski (Diploma Thesis)