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Julian

Green Software, Software Architecture,
IT Consulting

Julian:
Sustainable software architecture and Green IT with vision

Julian is an experienced software architect, consultant, and trainer with extensive expertise in sustainable software development and modern software architectures.

He is a Green Software Champion of the Green Software Foundation and brings deep knowledge in the design and implementation of resource-efficient software solutions.

Throughout his career, Julian has been involved in the development and architecture of numerous cloud-native applications in the FinTech sector – including projects related to payroll systems, the establishment of sustainable IT infrastructures, and the modernization of web applications. Furthermore, he holds the iSAQB certificate for Certified Professional for Software Architecture (CPSA) at Foundation Level.

His core areas include Green Software Engineering, test-driven development, and full-stack technologies such as Java, Spring Boot, Angular, and GraphQL.

He also has strong expertise in building CI/CD pipelines, cloud operations (Docker, Kubernetes), and quality assurance using automated testing and code analysis tools.

As a trainer, Julian is accredited for the iSAQB Foundation Level Training as well as the iSAQB advanced modules ADOC and GREEN. In addition, Julian teaches at the Baden-Württemberg Cooperative State University (DHBW), where he shares his knowledge in mathematics, application development, and Green IT in a hands-on, practical manner.

Personal Philosophy

Julian pursues a future-oriented approach to software architecture that combines technical excellence with environmental awareness.
For him, good software is not only about functional quality, but also about sustainability, maintainability, and social responsibility.
He deliberately relies on agile methods such as TDD, BDD, and Mob Programming, combined with a strong culture of communication and empathy within the team.
His goal is to design technical solutions that are not only scalable, but also resource-efficient and viable in the long term.

Personal Style

Julian represents a clearly structured and scientifically grounded way of working.
He combines analytical thinking with pragmatic implementation and knows how to inspire teams toward technical excellence and sustainable software development.
His leadership style is characterized by openness, transparency, and trust in his colleagues’ self-responsibility.
Julian creates learning environments where continuous improvement, feedback, and professional depth are encouraged.

Special Achievements

  • Established and led a company-wide Green IT community at DATEV
  • Project management of a research initiative to measure the resource consumption of architecture and coding patterns
  • Development of sustainable web applications in the human resources domain
  • Migration of legacy applications to a modern cloud-native infrastructure
  • Advising internal teams on implementing green software practices and energy-efficient API design

Certifications and Accreditations

Accredited trainers for:

🎓 iSAQB® CPSA Foundation Level (CPSA-F)

🎓 iSAQB® CPSA-Advanced Level – Modul ADOC

🎓 iSAQB® CPSA-Advanced Level – Modul GREEN

Zertifizierungen:

🎓 Green Software Champion der Green Software Foundation

🎓 iSAQB® CPSA Foundation Level (CPSA-F)

🎓 Ressourceneffizientes Cloud-Computing in AWS

🎓 Ganzheitliche Schulungen für Online-Entwickler

🎓 Requirements Engineering

🎓 Physische und IT-Sicherheit