Sven Giesselbach

CTO AI & Data | Foundation Models | Author | Keynote Speaker | Dr. rer. nat.

Siegburg, North Rhine-Westphalia, Germany

About

Experience

  • T-Systems International (Hybrid)
    • CTO AI & Data
      May 2026 - Present · 2 mos

    • Senior Advisor AI and Agentic Solutions
      Dec 2024 - Present · 1 yr 7 mos

      My work at T-Systems is at the intersection of our delivery, sales and our research partners for our data and AI initiatives. My tasks range from solution design, building prototypes, briefing management to C-level workshops and holding keynotes. Our customers range from ministries to large multinational corporations. I am responsible for creating solution designs with an emphasis on GenAI and agentic solutions and helping to shape our future souvereign portfolio and tech stack.

  • Fraunhofer IAIS (9 yrs 2 mos)
    • Teamleiter
      Oct 2019 - Nov 2024 · 5 yrs 2 mos

      I led the ambitious Natural Language Understanding team at Fraunhofer IAIS - a team of 15 highly skilled people, ranging from senior researchers with up to 40 years of experience in AI to juniors who just graduated. Together we built solutions in the domains of Enterprise Content Management, Retail, Legal Tech and Healthcare Analytics based on pre-trained language models, in particular transformer based models such as BERT and GPT.

    • Senior Data Scientist
      Oct 2017 - Sep 2019 · 2 yrs

      I led various projects as Senior Data Scientist.

    • Data Scientist
      Oct 2015 - Sep 2017 · 2 yrs

      As Data Scientist at Fraunhofer IAIS I worked on several industrial and research based projects. The projects ranged from information extraction from contracts to patient-centric document recommendation in the field of medicine. I led projects and the development of some of our tools. One of my focuses was the integration of research in industrial applications and the creation of AI-Demonstrators for the competence center of machine learning ML2R. My own research focused on the integration of knowledge in textual representations such as e.g. word or document embeddings. I also colecture the course "Deep Learning for Text Mining" at Fraunhofer IAIS.

  • Data Mining Intern at Bosch North America
    Jan 2015 - May 2015 · 5 mos

    Data Mining Internship at G1/PJ-DM During my internship in Palo Alto I worked on Data Mining related projects in the field of Manufacturing, Supply Chain Management and Sales. The predictive part of the projects I worked on ranged from regression and classification problems to time series analysis. I helped to develop solutions in the field of test-time reduction, first-pass-yield improvement, sales/demand forecasting and quality enhancement. Tasks included: ETL, Predictive Analysis, Descriptive Analysis, Close Customer contact, Business Understanding Tools used: Python (ipython, pandas, sklearn, etc...) , pyspark, KNIME, alpine, ...

  • Student Assistant at University of Bonn
    Mar 2014 - Dec 2014 · 10 mos

    Hausdorff Institute for Mathematics - IT Support Maintenance of the website (Typo 3, HTML, LaTeX) Setup of Network and Computer Infrastructures (Mac OS X , Windows) Support for Researchers

  • Student Assistant at University of Bonn
    Apr 2013 - Jul 2013 · 4 mos

    Hausdorff Institute for Mathematics - It Support Maintenance of the website (Typo 3, HTML, LaTeX) Setup of Network and Computer Infrastructures (Mac OS X , Windows) Support for Researchers