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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 comprehensive 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 designing and implementing resource‑efficient software solutions.

Throughout his career, Julian has contributed to the development and architecture of numerous cloud‑native applications in the FinTech sector — including projects in payroll processing, building sustainable IT infrastructures, and modernizing web applications.
He also holds the iSAQB Certified Professional for Software Architecture (CPSA) Foundation Level certification.

His focus areas include Green Software Engineering, test‑driven development, and full‑stack technologies using Java, Spring Boot, Angular, and GraphQL.

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

As a trainer, Julian is accredited for the iSAQB Foundation Level training as well as the iSAQB Advanced Modules ADOC and GREEN.
He also teaches at DHBW, where he shares practical knowledge in mathematics, application development, and Green IT.

Personal Philosophy

Julian follows a forward‑looking approach to software architecture that combines technical excellence with environmental awareness.

For him, good software means not only functional quality but also sustainability, maintainability, and social responsibility.

He deliberately relies on agile methods such as TDD, BDD, and mob programming, combined with a clear communication culture and empathy within the team.

His goal is to design technical solutions that are not only scalable but also resource‑efficient and sustainable in the long term.

Personal Style

Julian stands for a clearly structured and scientifically grounded working style.

He combines analytical thinking with pragmatic execution and knows how to inspire teams toward technical excellence and sustainable software development.

His leadership style is characterized by openness, transparency, and trust in the self‑responsibility of his colleagues.

Julian creates learning environments that foster continuous improvement, constructive feedback, and deep technical competence.

Special Achievements

  • Establishing and leading a company‑wide Green IT community at DATEV.
  • Project leadership of a research initiative for measuring the resource consumption of architecture and coding patterns.
  • Development of sustainable web applications in the field of human resources management.
  • Migration of legacy applications to a modern cloud‑native infrastructure.
  • Consulting internal teams on the adoption of green software practices and energy‑efficient API design.

Certifications and Accreditations

Accreditations Trainer for:
🎓 iSAQB® CPSA-Foundation Level (CPSA-F)
🎓 iSAQB® CPSA-Advanced Level – Modul ADOC
🎓 iSAQB® CPSA-Advanced Level – Modul ARCEVAL
🎓 iSAQB® CPSA-Advanced Level – Modul GREEN
Certifications:
🎓 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