Björn O. - DevOps & Cloud Engineer

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Mittweida, Germany

Experience

Jul 2025 - Nov 2025

5 months

Regensburg, Germany

Remote

DevOps & Database Engineer

Omniga GmbH & Co. KG

Azure DevOps, Google GKE, Azure AKS, and workload identity federation
Creation of all cloud resources with Terraform and Ansible
Migration of Microsoft SQL Server Databases with AlwaysOn Availability Groups from Azure to Google Cloud Platform

Nov 2022 - Oct 2025

3 years

Berlin, Germany

Remote

DevOps Engineer

Bundesdruckerei GmbH

Greenfield project: 20+ OpenShift multi-cluster solution for multiple tenants and tenant cluster management
Air-gapped installation with Artifactory as source; population via GitLab pipeline and oc-mirror
Design, deployment, and maintenance of Red Hat OpenStack for OpenShift clusters
Design, deployment, and maintenance of OpenShift 4.16 clusters with OpenShift Virtualization on bare metal using Ansible
Design, deployment, and maintenance of OpenShift 4.16 clusters on Proxmox with Ansible and Argo CD (OpenShift GitOps)
Design, deployment, and maintenance of OpenShift Data Foundation in external mode with a separate Ceph cluster
Design, deployment, and maintenance of OpenShift Data Foundation with internal disks and HashiCorp Vault as KMS
Design, deployment, and maintenance of Cert Manager with HashiCorp Vault as issuer
Configuration of Vault Secret Operator for Kubernetes secrets
Design, deployment, and maintenance of secret management with HashiCorp Vault Enterprise
Configuration of LDAP as authentication provider for OpenShift
Support and improvement of linting and test pipelines for Ansible playbook and role GitLab repositories
Design, deployment, and maintenance of Ansible Automation Platform in the management OpenShift cluster for tenant cluster management
Configuration of OpenShift AI and NVIDIA GPU Operator
Provisioning, management, and optimization of OpenShift resources under virtual network infrastructure
Implementation of Zero Trust networks with Red Hat OpenShift 4
Design, deployment, and maintenance of observability with Grafana Enterprise and Prometheus
Design, deployment, and maintenance of a DDI solution with BlueCat

Nov 2022 - Mar 2025

2 years 5 months

Frankfurt, Germany

Remote

DevOps Engineer

Deutsche Bahn AG

Configuration of Red Hat Enterprise Linux servers 8 & 9 with Ansible (Postfix, Nginx, SSSD)
Ansible role for issuing and deploying certificates from a Windows Server CA and an AWS PCA

Jun 2022 - Jul 2023

1 year 2 months

IT Team Lead

IMM electronics GmbH

Responsible for the IT of the entire company
Project responsibility for the ERP system (proAlpha) and related processes
Administration, updating, and maintenance of the entire IT infrastructure
Planning cloud migrations to Office 365 and other applications in Azure
Preparation for ISO 27001 audit
Implementation of a monitoring system based on CheckMK and replacement of the previous Nagios system

Mar 2016 - May 2022

6 years 3 months

Head of IT System Administration, Head of Kubernetes and DevOps, and Team Lead Microsoft Services & Support

ASPICON GmbH

Planning and implementation of Kubernetes, OpenShift, and Rancher projects for clients
Development and rollout of automation solutions based on Ansible
Configuration of application and user security with LDAP, SAML2, and OIDC
Maintenance and enhancement of monitoring checks for Kubernetes and SQL Server in CheckMK
Leadership of the Microsoft and Kubernetes team for client projects (3–4 employees)
Leadership of system administrators for internal systems (2 employees)
Establishment of revenue-relevant consulting and service department for SQL Server services, processes, and structures
Restructuring and optimization of the internal IT department with ITIL®-aligned processes
Support of management in preparation for ISO 27001 certification
Project responsibility for the introduction of a comprehensive DevOps and configuration management tool based on Puppet
Project responsibility for the implementation of an ITSM tool and ITIL®-oriented processes
Migration of Zimbra environment to Microsoft Exchange Server 2016
Project responsibility for deployment of a VDI environment based on VMware Horizon with Windows and Linux clients
Responsibility and execution of infrastructure projects for clients (VMware vSphere 6.5, Veeam, Microsoft Server)
Responsibility and execution of Microsoft SQL Server projects for clients (health checks, performance analyses, Always On Availability Group clusters)

Feb 2013 - Feb 2016

3 years 1 month

Mittweida, Germany

Head of System Administration

IMM Holding GmbH

Led system administration in a two-person team
Responsible for the entire Ricoh printing system
Introduced, installed, and configured a Nagios-based server monitoring system
Project lead for implementing a ticketing system
Administered VMware vSphere 5 environment, Dell servers and storage, Nexenta storage, Windows Server 2012
Created various IT infrastructure documentation
Participated in projects to integrate new sites in Mittweida

Aug 2009 - Jan 2013

3 years 6 months

Senior System Administrator

Omniga GmbH & Co. KG

Department head of IT administration with budget responsibility
Technical leadership of 4 full-time administrators and 2 apprentices
Responsible for training apprentices in system integration
Significant involvement in recruiting IT administrators and apprentices
Overall IT infrastructure planning and project responsibility for new product infrastructure
Implementation and consolidation of ITIL®-compliant processes (incident, problem, change management)
Planning and execution of migration to virtual environments
Member of the internal talent management program
Responsibility for various IT security projects (IDS, penetration tests, vulnerability scanning, defense in depth)
Management of online products in colocation data centers: NetApp storage, VMware ESX, KEMP load balancers, Debian Linux, KVM, MSSQL 2008 R2 high availability, ASP.NET on IIS web farm
Internal IT management: SharePoint Server 2010 installation, configuration, maintenance; IT asset management; introduction of OTRS ticketing system

Apr 2007 - Aug 2009

2 years 5 months

Regensburg, Germany

System Administration Manager

Smilingbits GmbH & Co. KG

Responsible for training apprentices in system integration
Management of online products in colocation data centers

Jul 2005 - Feb 2007

1 year 8 months

Roding, Germany

IT Administrator of the 3rd Parachute Battalion 451

Bundeswehr

Apr 2005 - Jun 2005

3 months

Basic military service

Bundeswehr

Aug 2004 - Mar 2005

8 months

Chemnitz, Germany

Technician at the University Computing Center

Chemnitz University of Technology

Summary

I have spent many years mastering DevOps and Cloud engineering, working with technologies such as Kubernetes, OpenShift, and various cloud platforms like Azure, Google Cloud, and AWS. I build and manage robust infrastructures, design secure systems, and automate processes using tools like Terraform, Ansible, and GitLab pipelines. My hands-on experience ranges from cloud migrations to advanced multi-cluster setups and container orchestration.

I take pride in leading teams to deliver efficient IT solutions and optimizing processes with an eye for security and scalability. My background includes working with enterprise-grade environments, setting up observability tools, and implementing Zero Trust networks, ensuring that systems perform well even under demanding conditions.