Otto H.
Linux System Support
Experience
Mar 2022 - Apr 2023
1 year 2 monthsLinux System Support
Freelance
- Support for clients in an enterprise DevOps environment on Ubuntu LTS (20.04 and 22.04)
- Bash shell scripting
- Git, SaltStack, Foreman, Podman/Docker
- Use of Jira and Confluence
- Participation in daily Scrum meetings
Jul 2020 - Present
5 years 4 monthsLinux System Administration Instructor
Freelance
- Preparation of participants for the LPIC-1 exam of the Linux Professional Institute
- Training includes shell scripting with bash
- Teaching practical skills on Debian, Ubuntu, CentOS, and openSUSE
Jul 2019 - Jan 2020
7 monthsIT Consultant
Freelance
- Coordination of patching activities (ESX on HPE and Lenovo x86 hosts with Linux & Windows VMs) for successful PCI-DSS certification
- Working with ITIL-based change management tools
Apr 2016 - Mar 2019
3 yearsErding, Germany
Technical Manager
Amadeus Data Processing GmbH
- Working with SuSE Linux Enterprise Server (SLES)
- Shell scripting with bash and ksh
- Coordination of vulnerability remediation
Aug 1999 - Mar 2016
16 years 8 monthsErding, Germany
UNIX Systems Manager
Amadeus Data Processing GmbH
- Built and led a team of sysadmins focused on OS support for AIX (POWER architecture, VIO servers, and HMCs) and HP-UX
- Increased use of SuSE Linux Enterprise Server (SLES) since 2005, migrating applications from HP-UX, AIX, and MVS to Linux
- Participation in and coordination of migration projects, especially architecture, proof of concept, implementation, and optimization
Oct 1995 - Jul 1999
3 years 10 monthsErding, Germany
UNIX System Programmer
Amadeus Data Processing GmbH
- System administration of HP-UX and AIX systems
- Maintenance of backup solutions based on OmniBack and ADSM/TSM
Oct 1992 - Jul 1995
2 years 10 monthsMunich, Germany
Consultant
CMG (Computer Management Group) GmbH
- System administration and automation of UNIX and INFORMIX installations
Jan 1986 - Sep 1992
6 years 9 monthsMunich, Germany
Software Technical Support Analyst
Cray Research GmbH
- Installations, upgrades and troubleshooting as second-level support for UNIX system and network software (UNICOS)
- Integration of UNIX mainframes into heterogeneous environments
Dec 1979 - Dec 1985
6 years 1 monthMunich, Germany
Research Associate
Technical University of Munich
- Scientific collaboration on research projects at the Chair of Operating Systems and Computer Networks
- Teaching duties and student supervision in tutorials, labs, theses, and seminars
Languages
German
NativeEducation
Dec 1979 - Jul 1985
Technical University of Munich
Ph.D. · Computer Science · Germany
Oct 1973 - Jun 1979
Technical University of Munich
Diploma in Computer Science · Computer Science · Germany
Certifications & licenses
Trainer Qualification Regulation (Munich and Upper Bavaria Chamber of Commerce and Industry certificate)
Munich and Upper Bavaria Chamber of Commerce and Industry
LPIC-1 (Linux Professional Institute)
Linux Professional Institute
ITIL V3 Foundation Training with Exam
EXIN
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