Skip to main content
COMPANY

About PROTOS

Unlock Your Cloud Experience

At PROTOS, we see ourselves as drivers of your IT cyber security and IT security, are committed to your big data and data processing AI, and optimize your IT infrastructure and networks. We support your software development in the integration of big data and data processing AI, and optimize your IT infrastructure and networks.

Our History

Since our founding, we have specialized in supporting companies with their digital transformation. With a team of experienced cloud architects and DevOps experts, we develop customized solutions tailored to the individual requirements of our customers.

Our expertise covers all major cloud providers – AWS, Azure, and Google Cloud. We understand the challenges of modern IT infrastructures and offer pragmatic solutions that work.

Our Values

At PROTOS, the customer is our focus. We believe in transparent communication, technical excellence, and sustainable solutions. Our team works in an agile and flexible manner to respond quickly to changing requirements.

We continuously invest in the further training of our employees, ensuring that we always remain at the cutting edge of technology. We pass this expertise on to our customers through consulting, implementation, and training.

Geschäftsführung

Sebastian Ullrich

Sebastian Ullrich

Managing Director, CEO / CFO

After studying in Berlin and London, specializing in ICT management and software development, Sebastian Ullrich worked as a research assistant at the Institute of Electronic Business e.V. He led numerous projects for financial service providers and transportation companies in the areas of online process optimization and IT implementation.

From 2010 to 2012, Sebastian Ullrich was the managing partner of Asperado GmbH, a startup specializing in Software as a Service marketplaces.

Until 2016, Sebastian Ullrich worked as a business consultant for various large corporations in the Business Technology division of Capgemini Deutschland GmbH.

Andreas Sass

Andreas Sass

Managing Director, CEO / COO

Since 2000, Andreas Sass has enjoyed a professional career as a project manager in numerous IT and digitalization projects for corporations and medium-sized businesses such as Lufthansa, E.ON, Bayer, Beiersdorf, and TÜV Süd. From 2009 to 2016, he also worked as a business analyst in the M&A sector, playing a key role in the mergers of PIA Performance Interactive Alliance and UDG United Digital Group.


His areas of expertise included the strategic development and expansion of companies, the acquisition and preparation of mergers, and project management in cloud and IT infrastructure projects. Concurrently, Andreas Sass completed a part-time Master's degree in Leadership in Digital Communication at the Berlin University of the Arts and the University of St. Gallen, graduating with distinction.

Karsten Quellec

Karsten Quellec

Managing Director, CTO / CIO

Since 2019, Karsten Quellec has been working at PROTOS Technologie GmbH as a Senior Cloud Architect, DevOps Engineer, and Security Engineer, with a clear focus on AWS Web Services. In this role, he leads the strategic planning and technical implementation of demanding infrastructure and application migrations, application modernization projects, and security audits using cloud services.


His expertise also extends to the transformation of applications to cloud-native solutions, where he relies on microservices and serverless services. By integrating agile workflows based on the DevSecOps approach, Karsten Quellec promotes seamless collaboration between development, security, and operations. His expertise and experience contribute significantly to fulfilling our mission of guiding companies 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 clients such as T-Systems, Allianz, HDI, Waters, Vodafone, and many more to fully leverage the potential of the cloud.


Prior to joining PROTOS, Karsten Quellec worked as a Senior Consultant and AWS Trainer at tecRacer.

Use cases from successful customer projects

AWS-Multi-Account Structure and Security Automation: A Case Study from the Public Mobility Sector
Multi-AccountAWS Control TowerInfrastructureKRITIS

AWS-Multi-Account Structure and Security Automation: A Case Study from the Public Mobility Sector

Learn more
1 / 13
Nicky Lippold Avatar

Optimizing your cloud journey?

Let’s align your infrastructure with your business goals—from initial strategy to 24/7 operations.

Nicky Lippold· Marketing & Sales