Stefan Preuss

Reuss leads the project delivery department and engineering for all OX Cloud platform-related products at Open-Xchange. His Project Delivery Team consists of Professional Services and Engineering Services and is responsible for managing and executing large-scale projects, deployments, and migrations for the entire OX product portfolio. Together with his teams, Preuss supports OX’s entire On-Prem and OX Cloud customer base. Related to this, he is responsible for engineering for OX Cloud platform-related product components and the OX migration frameworks.

Preuss joined OX in 2000 as one of the first employees and has held various management roles in Engineering and Services. Over the last two decades, he has played a critical role in developing and maintaining key products, including OX5 and OX6, OX App Suite, and solutions based on OX Cloud.

He also built the Engineering Services Team, which has software engineers located all over the world and provides software solutions spanning individual customer integrations and customization to OX Cloud, through to specific core components and migrations. In 2018 he took over responsibility for parts of the Services Teams to help streamline project delivery.