The ExB management team

Our management team is made up of experienced industry experts and leading representatives of their field – and so that you know who you are dealing with, you will find an overview of our smart leaders here.

Tobias Brix

CEO

Tobias Brix specialises in scaling SaaS companies and has extensive experience in the software sector. He has been CEO of ExB since October 2024.

Anselm Engelmayer

Head of Finance and Administration

Anselm Engelmayer has completed the management team at ExB as an authorised signatory since 2012. As an experienced expert in commercial matters, he is also the contact person for data protection, compliance and purchasing in addition to financial issues.

Dr. Ramin Assadollahi

Founder & Chairman of the Board

The founder of ExB is the author of numerous research papers in the field of Natural Language Processing (NLP) and one of the inventors of ‘next-word prediction’, which can now be found in all mobile devices worldwide. Assadollahi is one of Europe’s leading AI thinkers.

Tim Balzer

Head of Operations

Tim Balzer is a technical manager who also likes to lend a hand. After years of experience in the games industry, he has been leading ExB’s DevOps team since January 2023.

Michael Gzuk

Head of Marketing

Michael Gzuk has been Head of Marketing at ExB since 2022. With over 20 years of experience in technology and digital companies such as Scout24 and XING, he is an expert in his field.

Franziska Lorenz

Head of User Experience & Design

Franziska Lorenz has been with ExB since 2015 and is Head of UX & Design. She is always on the lookout for ways to create simplicity from complex problems and always has the needs of the users in mind.

Rogerio Rezende

Head of Engineering

Rogerio is a performance-driven technology leader with over 20 years of global experience.

Since April 2025, he has led ExB’s Engineering department, aligning technology with strategic business objectives to drive sustainable growth and operational excellence.

Falk Rehwagen

Head of Professional Services

Falk Rehwagen has been with ExB since 2011 and headed up software development as Director of Engineering until the end of 2021. Today, he is responsible for Professional Services and Customer Support.

Matthias Schenk

Head of Sales

Matthias Schenk has been working in business development in the IT, software and AI environment since 2019 and specialises in the logistics, manufacturing and automotive sectors. He has been with ExB since 2023 and acts as Head of Sales.

Kirsten Schlegel

Head of People

Kirsten Schlegel has been Head of People at ExB since March 2022 and focuses on developing the People division and promoting an open corporate culture.

Holger Trittenbach

Head of Product & Machine Learning

Holger Trittenbach has over ten years of experience in developing data-intensive systems and holds a PhD in computer science. As the head of product and machine learning, he leads ExB’s product strategy and AI development since November 2024.

Robert Hartmann

Head of Customer AI Services

Robert Hartmann has been with ExB since October 2024 and has seven years of experience in the IDP (Intelligent Document Processing) sector.

As an experienced project manager and product owner, he has successfully implemented more than 40 projects of various sizes and specializes in AI-supported automation solutions.