Stefan Haas
Senior Software Developer at SUSE
Nuremberg, Bavaria, Germany
Summary
🤩
Rockstar🎓
Top SchoolStefan Haas is a Senior Software Developer at SUSE in Nuremberg with eight years of professional experience building distributed systems and cloud-native infrastructure. He has steadily focused on orchestration and resource management across generations of technology—from Sun Grid Engine and Navops workload scheduling to modern Kubernetes storage orchestration. As an active contributor to the Rook project, he has improved Ceph CSI integration, automated OSD startup, prevented concurrent orchestrations, and simplified node onboarding to boost cluster stability. That mix of legacy scheduler know-how and hands‑on Kubernetes storage work gives him a practical advantage when designing reliable, automated infrastructure. He holds a Diplom in Computer Science from Georg‑Simon‑Ohm‑Fachhochschule Nürnberg.
9 years of coding experience
12 years of employment as a software developer
Diplom Informatiker (FH), Informatik, Diplom Informatiker (FH), Informatik at Georg-Simon-Ohm-Fachhochschule Nürnberg
German, English
Github Skills (14)
ceph10
storage10
kubernetes10
automation10
container-storage-interface10
automations10
go10
cloud-native10
storages10
csi10
kubernetes-pod10
dockers9
dockerce9
docker9
Programming languages (3)
Github contributions (5)
rook/rook
Feb 2019 - Mar 2021
Storage Orchestration for Kubernetes
Role in this project:
Backend & DevOps Engineer
Backend & DevOps EngineerContributions:3 reviews, 8 commits, 12 PRs in 2 years 1 month
Contributions summary:Stefan primarily contributed to the Rook storage orchestration project by addressing issues related to Ceph cluster management and CSI integration. They focused on improving the automation of OSD startup, preventing concurrent orchestrations, and integrating version checks for the Ceph CSI driver. Furthermore, the user contributed to adding functionality to include new nodes in the orchestration process while improving the project's overall stability.
etcddata-protectionorchestrationdockerceph
shaas/rookcheck
Jun 2020 - Oct 2022
Contributions:27 pushes, 7 branches in 2 years 3 months
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