open architecture & consulting


Founded in 2012, we at oparco, are the experts for software development and software architectures. We specialize in creating customized software solutions that cater to the unique needs of our clients in modern and diverse IT environments. We utilize the latest Java and JavaEE technologies, as well as cutting-edge frameworks to develop user-friendly interfaces.

To ensure seamless integration of our software solutions into the existing organizational and IT processes of our clients, we follow standardized integration architectures, implement business process management systems (BPMS), and adhere strictly to established architectural principles. Our goal is to deliver software solutions that are not only functional but also fully integrated into the client’s workflow.

We pride ourselves on being industry-neutral, having already successfully completed projects across a wide range of industries. This has enabled us to gain a thorough understanding of various technical requirements and seamlessly convert them into practical technical concepts. Our vast experience across diverse industries allows us to appreciate the nuances and unique needs of each client, ensuring that our solutions are tailor-made to fit their specific requirements.

Managing Director

Markus Winkler

Markus Winkler is a veteran in the field of software development and currently serves as the founder and managing director of oparco – open architectures & consulting. He has extensive experience working in various national and international software companies, having worked in different capacities such as a developer, consultant, and research & development manager.

From 2009 to 2012, Markus led the Development Consulting Team at IBM Germany and played a key role in supporting customers in projects based on the IBM WebSphere Application Server. Since 2012, he has been providing expert consulting services to his clients as the managing director of oparco, particularly in large Java and JavaEE projects as an external consultant and software architect. In addition, Markus has been an active member of the JavaEE 8 Expert Group since 2014, showcasing his commitment to staying up-to-date with the latest technologies and industry standards.