Andreas K.
DevOps Consultant
Experience
Jan 2023 - Jan 2025
2 years 1 monthDevOps Consultant
Freelancer (Automotive)
- Infrastructure automation with Ansible, AWX, Docker/DockerCompose/Kubernetes, GitLab, Bash, Python (Ubuntu)
- Infrastructure monitoring with Icinga2
- Software development in Python
- Qemu, KVM, libvirt
Apr 2022 - Present
3 years 5 monthsAutomation Consultant
Freelancer
- Infrastructure automation with Ansible, AWX, Jenkins, Docker
- Test automation with Robot Framework
- Software development in Python
- Infrastructure monitoring with Icinga2
Oct 2019 - Mar 2022
2 years 6 monthsVienna, Austria
DevOps Engineer
Bacher Systems EDV GmbH
- Automation with Ansible, AWX, Jenkins, Docker, Kubernetes, Bitbucket, RPM packaging
- Software development in Python
- Enhancing the monitoring stack OP5/Nagios; SNMP
Feb 2009 - Sep 2019
10 years 8 monthsVienna, Austria
Deputy Head of Operations
VisoTech Softwareentwicklungsges.m.b.H.
- Software development in Python, Django
- Established the operations department
- System administration of more than 100 Linux servers: RHEL/CentOS, MySQL, MongoDB, Nagios/Icinga2, virtualization, high availability, networking, firewalls, Jira, Confluence, Insight
- Automation with Ansible
Feb 2003 - Present
22 years 7 monthsLinux Consultant
Freelancer
- Linux server administration: high availability, virtualization, webserver, mailserver, fileserver, groupware, Nagios, firewalls, SPAM filter
- Compiling custom Linux distributions (based on Red Hat, Fedora, Debian)
- Software development in Python, Django
- Web sites in Plone, Apache; CSS, HTML, XML
- Web hosting, DNS administration, mail service
Jan 1998 - Jan 2003
5 years 1 monthVienna, Austria
Software developer, Linux operations
g.a.m.s. edv dienstleistungen gmbh / maxxio AG
- Software development under Linux in C, C++, Python, TCL, Perl
- Compiling a custom Linux distribution (based on Red Hat)
- Linux system administration
Nov 1996 - Dec 1997
1 year 2 monthsVienna, Austria
Software developer
Siemens AG
- System administration under HP-UX and Linux
- Software development in C++
- Software migrations under HP-UX and Reliant Unix
Sep 1995 - Oct 1996
1 year 2 monthsVienna, Austria
Software developer, System administrator
SAG-Schrack Anlagentechnik AG
- SCADA project work
- HP-UX and network administration
- Software development in C, Motif; script programming
Oct 1994 - Aug 1995
11 monthsKorneuburg, Austria
Paramedic
Red Cross
Feb 1990 - Jun 1994
4 years 5 monthsVienna, Austria
Software developer, System administrator
Freelancer (mainly ADES Echtzeitdaten-verarbeitungssysteme GmbH)
- UNIX system administration under Digital Ultrix
- Software development in C
- SCADA project work
- SQL (Oracle)
Summary
My work emphasizes reproducible and efficient system deployment and configuration using Ansible roles and playbooks, following Infrastructure as Code (IaC) principles. This ensures consistent environments and supports the development of stable, scalable infrastructure.
In addition, I bring comprehensive knowledge and experience in the following areas:
- Software development: Python
- Linux systems administraton: RHEL, Rocky, CentOS, Ubuntu
- Infrastructure monitoring: Nagios/Icinga2, including check scripts development
- Documentation: ReStructured Text, Markdown
- Tools and Technologies: Ansible AWX (Tower), Jenkins, Nexus Repository, LDAP, Keycloak, PKI, GitLab, Kubernetes, Podman/Docker/DockerCompose, Qemu, libvirt/KVM, Vagrant, Proxmox, Ceph
Languages
German
NativeEnglish
AdvancedGreek
ElementarySpanish
ElementaryFrench
Elementary ...and 2 more
Education
Oct 1987 - Apr 1994
TU, Vienna
Master of Science, Systems software · Informatics · Vienna, Austria
Sep 1980 - Jun 1987
Neusprachliches Gymnasium, Stockerau
Matura · Stockerau, Austria
Certifications & licenses
ITIL Foundation
makeit information systems GmbH
Advanced Information Security Training
XSEC infosec GmbH
Seminar series Leadership
WIFI
RHCE - Red Hat Certified Engineer
Global Knowledge
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