Sebastian Wagner
Engineering Manager at Platform9
Wedel, Schleswig-Holstein, Germany
Summary
🤩
Rockstar🎓
Top School
Top expert inInfrastructure and Network Automation
Sebastian Wagner is an engineering manager and seasoned software leader with 12+ years of hands-on experience and over a decade contributing to large-scale open source storage projects. He has led cross-functional teams and product roadmaps at companies from startups to enterprise vendors, most recently moving into an engineering management role at Platform9 after technical leadership positions at Red Hat and SUSE. Deeply involved in the Ceph ecosystem, Sebastian has driven cephadm architecture, CRD validation for Rook, and meaningful backend contributions to projects like Ceph and Askbot, showing both systems-level design and practical Python refactors for compatibility. He combines product delivery experience—launching customer portals and new UIs—with mentorship and personnel responsibility, consistently aligning global partners and upstream communities. Based in Wedel, Germany and father of two girls, he blends pragmatic engineering with collaborative open-source governance and a knack for improving deployability and test automation.
12 years of coding experience
16 years of employment as a software developer
Master of Science (M.Sc.) Computer Science, Master of Science (M.Sc.) Computer Science at Fachhochschule Wedel
German, English
Stackoverflow
2,428reputation
716kreached
31answers
12questions
ubuntu
top-5%
Github Skills (36)
kubernetes10
docker10
pytest10
python10
back-end-development10
django10
testing10
databases10
storage10
distributed-systems10
dockers10
crdt10
crt10
kubernetes-pods10
ceph10
Programming languages (17)
Github contributions (5)
ceph/ceph
Jan 2018 - Jan 2022
Ceph is a distributed object, block, and file storage platform
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1274 reviews, 2334 commits, 1585 PRs in 4 years
Contributions summary:Sebastian focused on extending and refactoring the Cephadm manager module within the Ceph distributed storage platform. Their contributions included adding and modifying classes related to managing daemons and services, specifically adding a class for CephadmDaemonSpec. They introduced code to create new class for OSD daemon's. Additionally, the user made improvements to the handling of daemon actions (redeploy, reconfig, etc.) by creating new code for handle it. The changes touched multiple files and likely improved the maintainability of the cephadm code.
fusefile-storagecephstorageopenebs
rook/rook
Oct 2018 - Jun 2021
Storage Orchestration for Kubernetes
Role in this project:Back-end Developer
Back-end DeveloperContributions:12 commits, 15 PRs, 199 comments in 2 years 8 months
Contributions summary:Sebastian primarily contributed to the development and validation of Custom Resource Definitions (CRDs) within the Rook/Ceph storage orchestration project. Their work involved adding printer columns to enhance command-line output, implementing schema validation for various Ceph components like CephCluster, CephFilesystem, and CephObjectStore, and synchronizing CRD definitions across different copies. They also addressed compatibility issues and incorporated features like network configuration and reservePoolsOnDelete into the CRD definitions, demonstrating a focus on improving the usability and functionality of the storage management system.
etcddata-protectionorchestrationdockerceph
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