Experienced Senior DevOps Engineer | Kubernetes | CI/CD Automation | Distributed Systems

7/2021 – 7/2023

Contributed to a large-scale project involving the deployment and
management of 35+ Java-based microservices across various private
Kubernetes clusters. Regular tasks included:

- Containerization of web applications and their operation within an agile
development team (Scrum and Kanban)
- Setup and operation of a continuous integration environment,
automating recurring activities (CI/CD) with Bash, Python, GitLab, Jenkins
- Administration and configuration of Kubernetes-clusters, including
monitoring, failover and recovery
- Incident management, analyzing and solving problems
- System documentation

Container Management, Oracle Database, PostgreSQL, DevOps, Kontinuierliche Integration (CI), OpenSuse, Red Hat Enterprise Linux (RHEL), UNIX, Confluence (Atlassian), Code Review, Apache Maven, Bash (Shell), Docker, Git, Java (allg.), Jenkins, Jira, Python, Spring, Ansible, Vmware (allg.), elasticSearch, Kubernetes, OpenShift

12/2019 – 12/2021

Implemented the transformation of a monolithic Java web application to a
scalable and highly available system in a new infrastructure. Successfully
integrated a new streaming service.

- Containerization of JAVA applications (Docker/Podman)
- Setup of Kubernetes clusters (OpenShift)
- Creating CI/CD Pipelines (Maven, Bash, GitLab)
- Integrating high performance computing and steaming functionality

Java (allg.), Apache Maven, Bash (Shell), Docker, Git, Kubernetes, KVM (Kernel-based Virtual Machine), NginX, OpenShift, Puppet, Python, Solr, Vmware (allg.)

10/2012 – 11/2019

• Administration and monitoring of the CentOS computing cluster
• Administration of the Unix server environment (RedHat, SUSE)
• Virtualization of various server groups (Docker, VMWare, KVM)
• Setup and monitoring of the student computing cluster
• Planning and implementation of a backup and archive solution
• Setup and maintenance of file and account servers (NFS, SAMBA, LDAP)
• Maintenance and administration of 40+ workstations
• Network management
• Administration of the Wiki

Microsoft Windows (allg.), OpenSuse, Red Hat Enterprise Linux (RHEL), UNIX, Nagios, Samba, Bash (Shell), Docker, Git, Python, Ansible, KVM (Kernel-based Virtual Machine), Vmware (allg.)