Stefan Roiser
Senior Computing Engineer at CERN
Geneva, Geneva, Switzerland
Summary
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Senior🎓
Top SchoolStefan Roiser is a Senior Computing Engineer with 24 years of experience building robust backend systems for research and academic infrastructures, currently based at CERN in Geneva. He holds a Dr. techn. in Computer Science from Technische Universität Wien and specializes in bridging computer science with natural sciences through production-grade software. At CERN he has contributed to critical grid middleware such as DIRAC, enhancing job monitoring, computing element integrations, and security logging robustness. His work reflects deep operational experience in distributed computing and a knack for pragmatic fixes that improve long-running research services. Outside core duties he actively promotes collaboration between software engineering and academia, helping translate research needs into reliable engineering solutions.
24 years of coding experience
Vienna University of Technology
German, English, French
Github Skills (10)
task-management10
workflow-management10
resource-management10
python10
grid10
grids10
distributed-computing10
ldap8
gzip7
sql6
Programming languages (7)
Github contributions (5)
DIRACGrid/DIRAC
Apr 2011 - Oct 2015
DIRAC Grid
Role in this project:
Backend Engineer
Backend EngineerContributions:7 commits, 3 PRs, 10 comments in 4 years 7 months
Contributions summary:Stefan primarily contributed to the backend functionality of the DIRAC Grid system. Their work involved modifying the CE2CSAgent to support alternative BDII sites, enhancing the SSHTorqueComputingElement for job status retrieval, and extending the JobMonitoring service. They also addressed a buffer size issue in security logging.
griddiracdistributed-computinginterwareworkflow-management
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