
CompanyUnlock Your Cloud Experience
PROTOS Technologie supports you in taking your IT infrastructure to the next level and unlocking its full potential in the cloud. With clear prioritization and a hands-on mentality, we create the conditions for future-proof digitization together with our customers. The services range from customized architectures for secure IT infrastructure transformation, safe and efficient management of the entire migration process to intelligent automation and cloud- native applications.
Management-Team
Sebastian Ullrich and Andreas Sass gained more than 15 years of IT experience at leading consulting companies and technology companies and were involved in over 50 cloud migration projects. In 2017 they founded PROTOS Technologie GmbH.

Sebastian UllrichManaging Director
Sebastian Ullrich studied ITC management and software development in Berlin and London. He worked as a research assistant for the Institute of Electronic Business e.V. before he has led numerous projects for financial service providers and transport companies in the field of online process optimization and IT implementation.
From 2010 to 2012, Sebastian Ullrich was the managing partner of Asperado GmbH, a Start-up for Software as a Service marketplaces. Until 2016, he worked in Business Technology at Capgemini Deutschland GmbH as a management consultant for various major companies.

Andreas SassManaging Director
Andreas Sass is a digital communication and business analyst consultant with many years of work experience as a project manager in numerous IT and digitalization projects for corporations and SMEs. Mr. Sass completed the master’s program “Leadership in Digital Communication” at the Berlin University of the Arts and the University of St. Gallen with distinction.
As a management consultant in the field of M&A, Andreas Sass played a key role in the mergers of the PIA Performance Interactive Alliance and the UDG United Digital Group. His main focus is the strategic development and expansion of companies as well as the acquisition and preparation of business combinations.

Karsten QuellecManaging Director
Karsten joined PROTOS Technologie GmbH in 2019 as Senior Cloud Architect, DevOps Engineer and Security Engineer with a clear focus on AWS Web Services. In his role, he leads the strategic planning as well as the technical implementation of challenging infrastructure and application migrations, application modernization projects, and security audits using cloud services.
His expertise also extends to the transformation of applications towards cloud-native solutions, using microservices and serverless services. By integrating agile workflows based on the DevSecOps approach, Karsten promotes seamless collaboration between development, security and operations. His expertise and experience contribute significantly to our mission of guiding enterprises on their path to sustainable and successful transformation.
As an AWS trainer for TÜV Rheinland and for AWS itself, he not only shares his knowledge but also empowers customers such as T-Systems, Allianz, HDI, Waters, Vodafone and many more to realize the full potential of the cloud.
Prior to PROTOS, Karsten was a senior consultant and AWS trainer at TecRacer.
PROTOS Technologie is your partner in management as well as in system administrators and developers and attaches great importance to personal customer relationships. In addition to the technological advances and change brought by the integration of applications and processes into the cloud, PROTOS Technologie also accompanies its clients in the cultural transformation to cloud computing.