Michael F.-IT Systems Administrator
Check rate
Experience
Linux Specialist
Evex-Group GmbH
- Updated production Proxmox servers from Debian 10 to 12
- Adapted the Ansible playbooks to the environment after the update
- Clustered Proxmox servers
- Migrated from VMWare to Proxmox
- Resolved customer issues with MySQL servers
- Implemented a backup solution including Mariabackup
- Updated Zabbix monitoring
Linux Specialist
Hitachi Rail GTS Deutschland GmbH
- Developed and implemented a repository mirror for package repositories of the common Linux distributions
- Integrated CheckMK monitoring
Subproject Manager
ING DiBa AG
IT project management
Tracked the migration and relocation of security-critical DevOps infrastructures
Evaluated network connection bandwidth
Coordinated leased-line suppliers
Automated operating system deployments (PXE, Kickstart, Ansible)
Coordinated the overall project, stakeholders and departments
Coordinated and managed the Cisco supplier
Defined, tracked and reported milestones
Integrated bare-metal servers into cloud architectures
Linux Specialist
SAP AG
- Provided an iPXE server
- Integrated bare-metal servers such as HP Superdome Flex into AWS Cloud
- Handed over to SAP Deployment (Ansible)
Linux Specialist
Deutsche Flugsicherung
Newly developed a Linux distribution for the automated installation and configuration of a data center from an ISO or PXE installation server
Implemented the automated provision of third-party virtual machines using KVM on a data center server
Adapted the automation to new developments in RHEL
System hardening
Adapted packages to new dependencies
Linux Specialist Engineer
noris network AG
- Design and implementation of customer solutions
- Implementation of security policies
- Troubleshooting on internal and customer servers
Linux Specialist
SAP AG
- Provisioning of an iPXE server
- Integration of bare-metal servers such as HP Superdome Flex into AWS Cloud
- Handover to SAP Deployment (Ansible)
Project Management
Thales Deutschland AG
- Virtualization with KVM, VMware ESXi, Docker
- Implementation of RAS access without security classification and for VS-NfD
- Rebuilding and hardening of the DMZ, connection of consortium partners
- Project planning (WBS, time and capacity management, risk management)
- Stakeholder management and reporting
- Definition and tracking of milestones
Second Level Support
Deutsche Post AG
- Implementation of scripts to provide statistics and accounting data, replacing manual entry
- Administration of RHEL servers
- Administration of Postfix with a customer-specific application
- Administration of VPN connections according to BSI standard
- Automation of workflows using Shell/Perl scripts
- Implementation of security policies
- DevOps rollout with Subversion/Puppet
Unix Operating
Commerzbank AG
- Further development of a web reporting tool to visualize the current project status
- Deputy team lead
- Administration of Solaris E10k Cluster
- Datacenter operations
- Coordination of specialist departments
Unix Operating
Commerzbank AG
- Further development of a web reporting tool to visualize the current project status
- Deputy team lead
- Administration of Solaris E10k clusters
- Data center operations
- Coordination of specialist departments
Linux Lecturer
QPunkt GmbH
- Lecturer in the training of IT specialists in UNIX/Linux, networks, HTML and PHP
- Independently delivering presentations
- Preparation of teaching materials
Linux Specialist Engineer
noris network AG
- Design and implementation of customer solutions
- Implementation of security policies
- Troubleshooting on internal and customer servers
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Aerospace and Defense, Banking and Finance, Manufacturing, and Transportation.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Operations, Project Management, and Business Intelligence.
Summary
I have built a solid career in IT, with a main focus on Linux systems administration and network security. I have managed the migration, update and clustering of servers, implemented automation using Ansible and provided robust solutions for backup, virtualization and cloud integrations. I actively tackle challenges from software updates to infrastructure hardening and system deployment.
I combine hands-on technical expertise with years of project and team coordination experience. I believe in creating secure, efficient and scalable IT systems that meet demanding operational requirements. My practical approach and continuous learning help me deliver reliable, up-to-date solutions in dynamic and high-pressure environments.
Skills
It Project Management, Architecture And Implementation Of Security-Critical Infrastructures
Automated Operating System Deployments (Pxe, Kickstart, Ansible)
Integration Of Bare-Metal Servers Into Cloud Architectures
Virtualization With Kvm, Vmware Esxi, Docker
System Hardening According To Bsi Standards
Stakeholder Management, Milestone Tracking And Reporting
Linux/Unix Operating Systems: Rhel, Centos, Fedora, Alma, Debian, Ubuntu, Solaris, Hp-Ux
Virtualization: Vmware Esxi, Kvm, Docker (Lxc)
Automation & Configuration Management: Ansible, Puppet, Kickstart, Ipxe
Devops & Ci/Cd Tools: Git, Gitlab, Svn, Jenkins
Databases: Postgresql, Mysql/Mariadb, Openldap / Slapd
Programming & Scripting: Bash, Python, Php, Sql, C
Network Services & Infrastructure: Apache, Postfix, Dovecot, Dns, Dhcp, Vpn
Project Management Tools: Jira, Confluence, Servicenow, Sharepoint, Otrs
Languages
Education
Friedrich-Alexander-Universität Erlangen
Computer Science · Erlangen, Germany
Berufsoberschule Nürnberg
Fachgebundenes Abitur · Computer Science / Technology Track · Nuremberg, Germany
Vorklasse FOS Fürth
General · Fürth, Germany
Certifications & licenses
IT Systems Administrator
Personnel Certification Body gps-cert
Statistics
Experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Michael is based in La Massana, Andorra and can operate in on-site, hybrid, and remote work models.
Michael speaks the following languages: German (Native), English (Advanced), Spanish (Elementary).
Michael has at least 18 years of experience. During this time, Michael has worked in at least 7 different roles and for 10 different companies. The average length of individual experience is 1 year and 5 months. Note that Michael may not have shared all experience and actually has more experience.
Based on recent experience, Michael would be well-suited for roles such as: Linux Specialist, Subproject Manager, Linux Specialist Engineer.
Michael's most recent position is Linux Specialist at Evex-Group GmbH.
In recent years, Michael has worked for Evex-Group GmbH, Hitachi Rail GTS Deutschland GmbH, ING DiBa AG, SAP AG, and Deutsche Flugsicherung.
Michael is most experienced in industries like Information Technology, Aerospace and Defense, and Banking and Finance. Michael also has some experience in Manufacturing and Transportation.
Michael is most experienced in business areas like Information Technology, Operations, and Project Management. Michael also has some experience in Business Intelligence.
Michael has recently worked in industries like Aerospace and Defense, Information Technology, and Banking and Finance.
Michael has recently worked in business areas like Information Technology, Project Management, and Operations.
Michael holds a Doctorate in Computer Science from Friedrich-Alexander-Universität Erlangen.
Michael has 1 certificate: IT Systems Administrator.
Michael will be available full-time from January 2027.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 17 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Similar freelancers
Discover other experts with similar qualifications and experience
Andreas E.
Jin-Ho Y.
Miguel S.
Vicenco K.
Jürgen K.
Thorsten M.
Christian F.
Peter K.
Thorsten L.
Björn O.
Experts recently working on similar projects
Freelancers with hands-on experience in comparable project as a Linux Specialist
Thomas P.
Christian E.
Manfred S.
Markus B.
Marcus W.
Nils M.
Tan P.
Pierre G.
Mirco S.
Andreas M.
Nearby freelancers
Professionals working in or nearby La Massana, Andorra
Manuel G.
Javier S.
Alex S.
Marc-Daniel O.
Marc H.
Tina L.
Rogelio A.
Pavel T.
Damien G.
Kolja I.
