Cloud Infrastructure Development - Ceph and Openshift
Aktualisiert am 14.02.2025
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 01.04.2025
Verfügbar zu: 50%
davon vor Ort: 10%
Automation
Ceph
OpenShift
Python
Bash
Powershell
OOB management
Kubernetes
Docker
ZFS
Cisco
Firmware
Monitoringsysteme
Serveradministration
Linux Administration
OpenStack
Cloud Computing
Ansible
Proxmox
Atlassian JIRA
GitLab
DevOps
Infrastructure as code
Deutsch
Muttersprache
Englisch
Verhandlungssicher

Einsatzorte

Einsatzorte

Bonn (+500km)
Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

3 Jahre 2 Monate
2022-11 - 2025-12

Aufbau und Integration von Cephstorage und Openshiftclustern für eine Datenanalyseplatform

Devopsengineer Ansible Terraform Scrum ...
Devopsengineer
Das Projekt umfasst die Konzeptionierung, Entwicklung und den Betrieb einer Datenanalyse- und Datenmanagement-Plattform, welche die Basis für Data
Engineering Projekte in einem Multi-Mandanten-Setup bildet. Hierzu gehören der Aufbau der technischen Infrastruktur als on-premise-Lösung im hauseigenen Rechenzentrum und die Entwicklung bzw. Integration von bestehenden Softwaresystemen für die Dienste Virtualisierung, Containerisierung, Automation und Überwachung.
Ceph Openshift Proxmox k3s Red Hat Enterprise Linux Kubernetes Prometheus Grafana Rook RHCOS Servicemesh Kubevirt Bluecat
Ansible Terraform Scrum Jira Gitlab RedHat PXE
Berlin
4 Jahre 9 Monate
2018-02 - 2022-10

Global Server Hardware Management Service

Devops Engineer Python PowerShell Bourne-again-shell ...
Devops Engineer
  • Technical management in the buildup of a global service team for 24x7 compute server hardware support for > 5.000 compute servers worldwide
  • Establishment of a ticket based workflow with ServiceNow
  • Automation of repetitive tasks like inventory collection, configuration and error collection
  • Buildup of a knowledge base of hardware and OS errors for operations
  • Training of junior colleagues in regards of compute server HW, network, storage, OS, programming languages and change management
  • Technical exchange with L4 engineers of HW vendors (Cisco, Lenovo, HPE, Dell)
  • Build and configuration of compute servers and building blocks
Atlassian Confluence Prometheus Git Cisco Microsoft Access Dell IDRAC Cisco UCSM Cisco UCS Central Cisco CIMC Lenovo IMM Lenovo XClarity HPE ILO HPE OneView Dell OpenManage Cisco IMC Supervisor Alertmanager Grafana Slack Apps OpenStack Kubernetes
Python PowerShell Bourne-again-shell VBA Service-Management Hardware Remote Management Makro-Entwicklung Linux Linux Administration
global operating german software company
Dresden
2 Jahre 6 Monate
2020-01 - 2022-06

Migration von Legacystorage nach Kubernetes/Ceph

System Engineer Python Bourne-again-shell Storage ...
System Engineer
- Evaluate different storage solutions as backend for K8s (DRBD, Ceph)

- Deploy a test system for all future changes
- Plan and Deploy a vanilla Kubernetes cluster with Ceph as backend
- CephFS + RBD (for images) as backend
- Baremetal deployment (MetalLB as loadbalancer, Traefik as reverse proxy)
- Kubevirt as virtualization solution for VMs (for heavy services like mailserver)
- Backup via ZFS over multiple countries
- Migrate all services from docker-compose to K8s YAML and/or Helm
- Buildup a monitoring with Prometheus/Alertmanager/Grafana
- All deployment scripts versioned in Git



Kubernetes Prometheus Grafana Alertmanager Ceph Git Docker Containerd ZFS DRBD Traefik MetalLB Helm
Python Bourne-again-shell Storage Linux Monitoringsysteme
Setroit IT
Bonn
2 Monate
2018-01 - 2018-02

Evaluation, deployment and operation of a PBX for a mid-size software development company

System Engineer Linux PBX
System Engineer
  • Deriving the size of the new system through analysis of the existing analogue PBX
  • Evaluation of alternative open source PBX products (FreeSwitch, FreePBX) together with the customer
  • Hardware sizing of compute server hardware and IP- and soft phones
  • Testing + Deployment of the production system
  • Early operations and handover to the local admin team
FreePBX FreeSwitch
Linux PBX
Mid-size software development company
Kassel, Hessen
2 Monate
2017-11 - 2017-12

Migration of Nagios-based monitoring metrics to Prometheus

System Engineer Python Bourne-again-shell
System Engineer
  • Migrate exporters for hardware devices from Shinken to Prometheus
  • Translation of existing Shinken scripts for iSCSI devices via Python into Prometheus exporters
  • Deployment in legacy Docker SWARM cluster
Prometheus Nagios Shinken Docker
Python Bourne-again-shell
Mid-size software development company
Kassel, Hessen
2 Monate
2017-11 - 2017-12

Upgrade of issuing and collaboration software

System Engineer Linux
System Engineer
  • Upgrade of a single-host Atlassian Confluence on premise instance (testing, rollout, operation)
  • Upgrade of a single-host Youtrack (issue tracking and project management system) instance (testing, rollout, operation)
Youtrack Atlassian Confluence Docker KVM Puppet MAAS Postman Gerrit nginx
Linux
Mid-size software development company
Kassel, Hessen
6 Monate
2017-04 - 2017-09

Buildup, Evaluation and Optimization of a Ceph storage cluster

System Engineer Linux
System Engineer
  • Testing, evaluation and documentation of multiple setups (commodity and profi-hardware clusters)
  • Automated rollout, benchmarking and monitoring of a Ceph cluster with 5 servers and 60 OSDs in the starting configuration
  • Integration of the Ceph cluster in an OpenStack instance as backend for Cinder
Ceph Bourne-again-shell OpenStack-Cinder OpenStack
Linux
Science institute
Leipzig
2 Jahre
2015-10 - 2017-09

Administrator of an Openstack Cluster in a Research Insititute

Administrator Python Bourne-again-shell
Administrator
- Operate an Openstack Cluster and integrate it in a grown Institute IT (integrate VMs with existing deployment solution Puppet)
- Organize the regular Upgrades
- Create VM Images
- Modify VMs with Cloudinit
- Define Security Groups
- Operate a test system for pre-production changes
- Operate a Ceph cluster as backend for Glance and Cinder
- KT for users
- Improve the documentation for the admins and users
Puppet OpenStack Ceph
Python Bourne-again-shell
Leipzig
3 Jahre
2014-10 - 2017-09

L2/L3 Linux Desktop- and Serveradministration

Administrator Python Bourne-again-shell Issuetracking ...
Administrator
- Build and repair compute servers

- Build and repair Desktop computers for users
- Plan, build and optimize server cages (racks, cabling, warm-cold isles)
- Work on trouble tickets for users
- Create/Update workflows for the usage of the internal IT systems
- Evaluate, plan, build and repair event technology for lecture halls (projectors, sound systems, microphones, fibre converters, video scalers)
- Evaluate and operate video conferencing systems for interconnecting multiple distant research institutes (technologies: Jitsi, Cisco, Lifesize)


Jitsi Cisco Lifesize
Python Bourne-again-shell Issuetracking Serveradministration Linux
Max-Planck-Institut für Kognitions- und Neurowissenschaften Leipzig
Leipzig

Aus- und Weiterbildung

Aus- und Weiterbildung

3 Jahre
2014-10 - 2017-09

Informatikstudium

Bachelor, BA Leipzig
Bachelor
BA Leipzig
5 Jahre 6 Monate
2004-10 - 2010-03

LA MS Mathematik und Geschichte

Staatsexamen, Universität Leipzig
Staatsexamen
Universität Leipzig

Position

Position

Cloud Infrastructure Developer, basically for Storage and Container Orchestration

Einsatzorte

Einsatzorte

Bonn (+500km)
Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

3 Jahre 2 Monate
2022-11 - 2025-12

Aufbau und Integration von Cephstorage und Openshiftclustern für eine Datenanalyseplatform

Devopsengineer Ansible Terraform Scrum ...
Devopsengineer
Das Projekt umfasst die Konzeptionierung, Entwicklung und den Betrieb einer Datenanalyse- und Datenmanagement-Plattform, welche die Basis für Data
Engineering Projekte in einem Multi-Mandanten-Setup bildet. Hierzu gehören der Aufbau der technischen Infrastruktur als on-premise-Lösung im hauseigenen Rechenzentrum und die Entwicklung bzw. Integration von bestehenden Softwaresystemen für die Dienste Virtualisierung, Containerisierung, Automation und Überwachung.
Ceph Openshift Proxmox k3s Red Hat Enterprise Linux Kubernetes Prometheus Grafana Rook RHCOS Servicemesh Kubevirt Bluecat
Ansible Terraform Scrum Jira Gitlab RedHat PXE
Berlin
4 Jahre 9 Monate
2018-02 - 2022-10

Global Server Hardware Management Service

Devops Engineer Python PowerShell Bourne-again-shell ...
Devops Engineer
  • Technical management in the buildup of a global service team for 24x7 compute server hardware support for > 5.000 compute servers worldwide
  • Establishment of a ticket based workflow with ServiceNow
  • Automation of repetitive tasks like inventory collection, configuration and error collection
  • Buildup of a knowledge base of hardware and OS errors for operations
  • Training of junior colleagues in regards of compute server HW, network, storage, OS, programming languages and change management
  • Technical exchange with L4 engineers of HW vendors (Cisco, Lenovo, HPE, Dell)
  • Build and configuration of compute servers and building blocks
Atlassian Confluence Prometheus Git Cisco Microsoft Access Dell IDRAC Cisco UCSM Cisco UCS Central Cisco CIMC Lenovo IMM Lenovo XClarity HPE ILO HPE OneView Dell OpenManage Cisco IMC Supervisor Alertmanager Grafana Slack Apps OpenStack Kubernetes
Python PowerShell Bourne-again-shell VBA Service-Management Hardware Remote Management Makro-Entwicklung Linux Linux Administration
global operating german software company
Dresden
2 Jahre 6 Monate
2020-01 - 2022-06

Migration von Legacystorage nach Kubernetes/Ceph

System Engineer Python Bourne-again-shell Storage ...
System Engineer
- Evaluate different storage solutions as backend for K8s (DRBD, Ceph)

- Deploy a test system for all future changes
- Plan and Deploy a vanilla Kubernetes cluster with Ceph as backend
- CephFS + RBD (for images) as backend
- Baremetal deployment (MetalLB as loadbalancer, Traefik as reverse proxy)
- Kubevirt as virtualization solution for VMs (for heavy services like mailserver)
- Backup via ZFS over multiple countries
- Migrate all services from docker-compose to K8s YAML and/or Helm
- Buildup a monitoring with Prometheus/Alertmanager/Grafana
- All deployment scripts versioned in Git



Kubernetes Prometheus Grafana Alertmanager Ceph Git Docker Containerd ZFS DRBD Traefik MetalLB Helm
Python Bourne-again-shell Storage Linux Monitoringsysteme
Setroit IT
Bonn
2 Monate
2018-01 - 2018-02

Evaluation, deployment and operation of a PBX for a mid-size software development company

System Engineer Linux PBX
System Engineer
  • Deriving the size of the new system through analysis of the existing analogue PBX
  • Evaluation of alternative open source PBX products (FreeSwitch, FreePBX) together with the customer
  • Hardware sizing of compute server hardware and IP- and soft phones
  • Testing + Deployment of the production system
  • Early operations and handover to the local admin team
FreePBX FreeSwitch
Linux PBX
Mid-size software development company
Kassel, Hessen
2 Monate
2017-11 - 2017-12

Migration of Nagios-based monitoring metrics to Prometheus

System Engineer Python Bourne-again-shell
System Engineer
  • Migrate exporters for hardware devices from Shinken to Prometheus
  • Translation of existing Shinken scripts for iSCSI devices via Python into Prometheus exporters
  • Deployment in legacy Docker SWARM cluster
Prometheus Nagios Shinken Docker
Python Bourne-again-shell
Mid-size software development company
Kassel, Hessen
2 Monate
2017-11 - 2017-12

Upgrade of issuing and collaboration software

System Engineer Linux
System Engineer
  • Upgrade of a single-host Atlassian Confluence on premise instance (testing, rollout, operation)
  • Upgrade of a single-host Youtrack (issue tracking and project management system) instance (testing, rollout, operation)
Youtrack Atlassian Confluence Docker KVM Puppet MAAS Postman Gerrit nginx
Linux
Mid-size software development company
Kassel, Hessen
6 Monate
2017-04 - 2017-09

Buildup, Evaluation and Optimization of a Ceph storage cluster

System Engineer Linux
System Engineer
  • Testing, evaluation and documentation of multiple setups (commodity and profi-hardware clusters)
  • Automated rollout, benchmarking and monitoring of a Ceph cluster with 5 servers and 60 OSDs in the starting configuration
  • Integration of the Ceph cluster in an OpenStack instance as backend for Cinder
Ceph Bourne-again-shell OpenStack-Cinder OpenStack
Linux
Science institute
Leipzig
2 Jahre
2015-10 - 2017-09

Administrator of an Openstack Cluster in a Research Insititute

Administrator Python Bourne-again-shell
Administrator
- Operate an Openstack Cluster and integrate it in a grown Institute IT (integrate VMs with existing deployment solution Puppet)
- Organize the regular Upgrades
- Create VM Images
- Modify VMs with Cloudinit
- Define Security Groups
- Operate a test system for pre-production changes
- Operate a Ceph cluster as backend for Glance and Cinder
- KT for users
- Improve the documentation for the admins and users
Puppet OpenStack Ceph
Python Bourne-again-shell
Leipzig
3 Jahre
2014-10 - 2017-09

L2/L3 Linux Desktop- and Serveradministration

Administrator Python Bourne-again-shell Issuetracking ...
Administrator
- Build and repair compute servers

- Build and repair Desktop computers for users
- Plan, build and optimize server cages (racks, cabling, warm-cold isles)
- Work on trouble tickets for users
- Create/Update workflows for the usage of the internal IT systems
- Evaluate, plan, build and repair event technology for lecture halls (projectors, sound systems, microphones, fibre converters, video scalers)
- Evaluate and operate video conferencing systems for interconnecting multiple distant research institutes (technologies: Jitsi, Cisco, Lifesize)


Jitsi Cisco Lifesize
Python Bourne-again-shell Issuetracking Serveradministration Linux
Max-Planck-Institut für Kognitions- und Neurowissenschaften Leipzig
Leipzig

Aus- und Weiterbildung

Aus- und Weiterbildung

3 Jahre
2014-10 - 2017-09

Informatikstudium

Bachelor, BA Leipzig
Bachelor
BA Leipzig
5 Jahre 6 Monate
2004-10 - 2010-03

LA MS Mathematik und Geschichte

Staatsexamen, Universität Leipzig
Staatsexamen
Universität Leipzig

Position

Position

Cloud Infrastructure Developer, basically for Storage and Container Orchestration

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