Manfred Schirmer - Senior Linux System Engineer with Ansible

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Lautertal (Odenwald), Germany

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Experience

Jan 2024 - Dec 2025

2 years

Frankfurt, Germany

Senior System Engineer Linux

DB InfraGo AG

Set up and updated virtual machines for railway operations infrastructure.
Used VMWare vSphere 6–8, Veeam Backup, Microsoft Active Directory, DNS, NPS, and WSUS.
Used RedHat Satellite Server, rSyslog Server, Icinga2, Postfix, Tacacs, Ansible, and Ansible Automation Platform.
Operated HPE rack servers and HPE Synergy blade servers with Meinberg NTP Server, Brocade FC, and Cisco Nexus 9000.

May 2023 - Dec 2023

8 months

Frankfurt, Germany

Senior System Engineer Linux

DB Netz AG

Set up and updated virtual machines for railway operations infrastructure.
Managed VMWare vSphere 6–8, Veeam Backup, Microsoft Active Directory, DNS, NPS, and WSUS.
Used RedHat Satellite Server, rSyslog Server, Icinga2, Postfix, Tacacs, and Ansible.
Used HPE rack servers, HPE Synergy blade servers, Meinberg NTP Server, Brocade FC, and Cisco Nexus 9000.

Mar 2023 - Jul 2023

5 months

Blomberg, Germany

Senior System Engineer Linux

PhoenixContact

Set up and updated Linux VMs for SAP Application Servers and SAP HANA instances.
Operated them on VMWare vSphere 7–8 and Veeam Backup.
Used SLES for SAP 12–15.5, RHEL 7–9, Ansible, cfengine, Microsoft ADS, and DNS.

Jul 2022 - Jun 2023

1 year

Kiel, Germany

Senior System Engineer Linux

CITTY Handelsgesellschaft

Analyzed, designed, and implemented a new database and automation architecture.
Set up a multi-master Galera cluster to consolidate all MariaDB instances.
Implemented Ansible-based automation.

Jan 2022 - Apr 2022

4 months

Karlsruhe, Germany

System Engineer Application Operations Linux Systems

L-Bank

Set up automatic deployment for JBoss applications.
Operated ActiveMQ and implemented security patches.
Monitored systems and ensured compliance with Payment Card Industry Data Security Standard requirements, including handling CERT alerts and crypto alerts.
Used Nginx, Apache, JBoss, Wildfly, Ansible, Git, RedHat AMQ, Artemis, and Bash.

Nov 2021 - Jul 2022

9 months

Böblingen, Germany

System Engineer Application Operations Linux Systems

DXC Technology

Administration of JBoss applications and their installation for public sector clients.
Use of DXC Webscan, JBoss, Ansible, XML, Active Directory, SSO, Oracle 19, PostgreSQL and Check_MK.
Ensuring stable application operations on Linux systems.

Jul 2021 - Dec 2021

6 months

Frankfurt, Germany

System Engineer Linux Systems

ING

Automation of OS upgrades for Linux systems.
Support for SAP HANA migrations and installation of security updates.
Use of RHEL 7 and 8, SAP HANA, Ansible, Bash, Python, Git, VMware ESXi, Veeam Backup and Check_MK.

Jul 2021 - Sep 2021

3 months

Berlin, Germany

System Engineer Application Operations Linux Systems

Deutsche Rentenversicherung Berlin Brandenburg

Automation of JBoss and WildFly servers.
Use of Apache, Tomcat, WildFly, Bash and Git to implement requirements in application operations.

Feb 2020 - Jun 2021

1 year 5 months

Bochum, Germany

System Engineer Application Operations Linux Systems

Knappschaft Bahn See

Automation and operation of web and application servers.
Use of SUSE SLES 12, Apache, Tomcat 9, WildFly, WebSphere, Subversion, Git, ActiveMQ, Bash, Zsh, Ansible, Automic and Python.

Oct 2019 - Dec 2025

6 years 3 months

Heidelberg, Germany

System Engineer Linux Systems

European Media Laboratory

Automation and operation of web and application servers in a research and development environment.
Use of OpenShift, Docker, Ansible and Python for container and configuration management.
Operation of Red Hat Enterprise Linux 6–8, Debian 9 and 10, Ubuntu 18.04 and 20.04.
Use of Bash, Git, Apache, Nginx, Tomcat 8 and WildFly.

Oct 2019 - Jan 2020

4 months

Koblenz, Germany

System Engineer Application Operations Linux Systems

Debeka

Automation and operation of web and application servers.
Use of OpenShift, Docker, SLES 12 and 15, Ubuntu 18.04, Bash, Apache, Nginx, Tomcat and WildFly.
Use of Puppet, Puppet Bolt, Ansible and Python for configuration and deployment automation.

Aug 2019 - Dec 2019

5 months

Troisdorf, Germany

System Engineer SAP Systems

BwFuhrparkService GmbH

Automation and operation of web and application servers in an SAP environment.
Use of SUSE Linux Enterprise Server 12 and 15, Bash, Ansible and Python.

Jan 2019 - Oct 2019

10 months

Wiesbaden, Germany

System Engineer Application Operations Unix Systems

Schufa Holding AG

Automation and operation of web and application servers in the financial services sector.
Use of OpenShift, Docker, Ansible, Python, Red Hat Enterprise Linux 6 and 7, Solaris 10, Bash and Korn shell.
Operation of Apache, Nginx, Tomcat and WildFly.

Oct 2017 - Oct 2018

1 year 1 month

Nuremberg, Germany

System Engineer Middleware, Monitoring

Consorsbank

Installation, automation and operation of web application servers.
Installation and customization of monitoring checks as well as development of DevOps pipelines.
Use of Red Hat Enterprise Linux 6 and 7, Bash, JBoss Enterprise Application Platform, Tomcat, Apache Web Server, ActiveMQ, Jenkins, Ansible, Python, Icinga2, Subversion and Git.

Mar 2016 - Dec 2018

2 years 10 months

Munich, Germany

System Engineer Application Operations Unix Systems

finanz informatik technologie service

Installation, automation and operation of web application servers.
Implementation of identity and access management, including connection to LDAP servers.
Planning and implementation of a sudo concept as well as rollout of sudo roles.
Use of Red Hat Enterprise Linux 6 and 7, Solaris 10, Bash, Korn shell, JBoss 6 to WildFly 9, WebSphere WAS, Apache Web Server, Ansible, SAS, LDAP servers and clients, and Python.

Feb 2016 - Feb 2017

1 year 1 month

Nuremberg, Germany

System Engineer Middleware, Linux, zOS

Sparda Datenverarbeitung e.G.

Installation, automation, and operation of web application servers on Linux and zOS platforms.
Use of Red Hat Enterprise Linux 6 and 7, SUSE SLES 11, SLES for System z, JBoss 6 through WildFly 10, WebSphere WAS, Liberty, and Portal.
Use of Apache Web Server, Puppet, Ruby, Hiera, Subversion, Jenkins, and Git.

Aug 2015 - Jan 2016

6 months

Karlsruhe, Germany

System Engineer in Linux Production Systems

Filiadata / dm-drogerie markt

Installation automation and highly available operation of complete environments (web stack, application servers).
Use of Red Hat Enterprise Linux 6 and 7, JBoss 6 through WildFly 9, Tomcat 6 and 7, Apache Web Server, Nginx Web Server, Varnish, and reverse proxies.
Use of Puppet, Hiera, Ruby, Perl, Foreman, Keepalived, Tanuki, Icinga2, Jolokia, Jmx4Perl, Percona, and Galera Cluster.

Jan 2015 - Jul 2015

7 months

Frankfurt, Germany

System Engineer

DZ Bank AG

Installation and highly available operation of Apache, JBoss, and Tomcat applications.
Use of Red Hat Enterprise Linux 6 and 7, Solaris 10 and 11, ZFS, JBoss 4 through 7, Tomcat 5 through 7, Apache Web Server, and reverse proxies.
Use of WatchIT, UC4, Red Hat Satellite 5 and 6, and Perl.

Apr 2014 - Dec 2014

9 months

Germany

System Engineer

IBM Global Business Services

Installation and highly available operation of Apache, JBoss, and WebSphere environments.
Last-level support for complex Linux application environments.
Use of Red Hat Enterprise Linux 5 and 6, JBoss, Tomcat, WebSphere, Apache, and Kerberos.
Use of a configuration and deployment framework in Bash and Perl.

Sep 2012 - Mar 2014

1 year 7 months

Ingolstadt, Germany

Systems Design Engineer

Media-Saturn IT-Services

Installation and highly available operation of JBoss, Tomcat, and ColdFusion environments on Linux.
Operation of Oracle clusters on virtual and physical servers.
Relocation of a data center, establishment of operations management, and implementation of Nagios monitoring.
Use of SUSE Linux Enterprise Server, VMware, JBoss, Tomcat, WebSphere 8.5, Apache, Kerberos, AppDynamics, ColdFusion 9, Nagios, Munin, Cacti, and F5 load balancers.

Jun 2012 - Sep 2012

4 months

Raunheim, Germany

Systems Design Engineer

Sybase 365

Installation and highly available operation of JBoss and Tomcat environments on Linux.
Operation of Oracle clusters and troubleshooting.
Use of RedHat Enterprise Linux, VMWare, Kickstart, JBoss 6 and 7, Tomcat, Apache, Apache mod_jk load balancer, Bash, Oracle, Perl, Python and Kerberos.

Sep 2011 - Jun 2012

10 months

Karlsruhe, Germany

Linux System Administration and Operation of Tomcat and JBoss

ORGA GmbH

Installation and highly available operation of JBoss and Tomcat environments on Linux.
Operation of Oracle clusters.
Use of RedHat Enterprise Linux, PXE boot, VMWare, JBoss 4 and 5, Tomcat, Apache, Bash and Oracle.

Jul 2011 - Feb 2012

8 months

Düsseldorf, Germany

Linux System Administration JBoss

IT.NRW

Installation and highly available operation of Oracle RAC, JBoss and Apache load balancers on Linux servers.
Use of RedHat Enterprise Linux, AppDynamics, OpenLDAP, Puppet, Chef, Perl, PHP, Kerberos, VMWare, JBoss 5 and 7, Tomcat, Apache, Bash, Python and Fabric.

Jan 2011 - Jun 2011

6 months

Bonn, Germany

Linux System Administration

Deutsche Post AG

Installation and operation of Linux servers for a complex web software test environment.
Installation and operation of local firewalls as well as automated configuration using Puppet.
Use of hardware from HP, Cisco and NetApp.
Use of RedHat Enterprise Linux, Ubuntu Linux, OpenLDAP, Puppet, Perl, PHP, VMWare, OpenVZ, JBoss, Tomcat, Postfix, Bash, as well as Windows Server, Exchange and Lotus Domino.

Sep 2010 - Dec 2010

4 months

Heusenstamm, Germany

Linux System Administration

ITSG Informationstechnische Servicestelle der gesetzlichen Krankenversicherung

Installation and highly available operation of Linux and Windows servers in the healthcare sector.
Deployment of Java software.
Use of hardware from HP, Fujitsu and NetApp.
Use of Suse Linux, Ubuntu Linux, OpenLDAP, Perl, VMWare, JBoss, Tomcat, Windows Server 2003 and 2008, as well as MS SQL Server 2005 and 2008.

May 2010 - Aug 2010

4 months

Wiesbaden, Germany

Linux System Administration

HZD Hessian Central Office for Data Processing

Installation and operation of Linux servers in the public sector.
Operation of Oracle Application Server.
Design and implementation of a Nagios monitoring system.
Use of Fujitsu hardware.
Use of Suse SLES 9–11, OpenLDAP, Perl, shell scripts, Oracle 10, Nagios, Icinga, VMWare, JBoss, Tomcat, and Windows Server 2003 and 2008.

Jan 2010 - Apr 2010

4 months

Eschborn, Germany

Unix System Administration

Vodafone

Installation and high-availability operation of Unix servers and cluster systems according to ITIL.
Integration of SAN storage and Oracle databases.
Use of hardware from HP, IBM, EMC Clariion, and Symmetrix.
Use of HPUX 11, ServiceGuard, AIX, Linux (RHEL 3 and 5), OpenLDAP, Perl, Oracle, and Nagios.

Feb 2008 - Dec 2009

1 year 11 months

Frankfurt, Germany

Unix System Administration

UBS AG

Installation, operation, and backup/restore of Unix servers and cluster systems as part of a global team.
Setup, operation, and relocation of a data center.
Execution of change management and incident management according to ITIL.
Use of hardware from Sun, StorageWorks, Quantum, HP, Fujitsu Siemens, IBM, NetApp, Hitachi, EMC, Brocade, and Cisco.
Use of Solaris 10, HPUX 11, AIX, Linux (RHEL 3 and 5), Mac OS X Server, NetCool System Monitoring, Veritas Storage Foundation, Veritas NetBackup, ARS Remedy, HP OpenView, Oracle 10, MC/ServiceGuard, NIS, Kerberos, LDAP, and DNS.

Aug 2007 - Dec 2007

5 months

Frankfurt, Germany

AIX Systems Engineer for IBM p-Series Branch Servers

Dresdner Bank

Support and administration of AIX systems for IBM p-Series branch servers.
Use of IBM p-Series hardware and SAN storage.
Use of AIX 4.3 and 5.3, as well as development tools and BFF packaging tools.

Apr 2007 - Aug 2007

5 months

Oberhausen, Germany

Unix System Administration

MAN Turbo AG

Operation of HP clusters for CAD design.
Administration of IBM p-Series servers for SAP.
Operation of a Linux high-performance cluster for fluid dynamics calculations.
Use of IBM p-Series and HP servers (RISC and Intel Itanium failover clusters), as well as SAN storage.
Use of AIX 4.3 and 5.3, SAP Basis Administration, RHEL 3 and 4, HPUX 11, MC/ServiceGuard, I-Deas CAD software, and Nagios monitoring.

Aug 2006 - Mar 2007

8 months

Bielefeld, Germany

Network Administration and System Programming

AWEK Mikrodata

Administration of the network infrastructure for a software company.
System programming for customer environments.
Use of Intel servers, Cisco routers, and HP ProCurve switches.
Use of Windows Server 2003, Linux servers (Debian 3, SLES 10), VPN, firewall (IPTables), Samba, Apache, JBoss, Tomcat, Postfix, and SNMP.
Implementation of Linux kernel customizations and development of automated installation routines.

Jul 2006 - Jul 2006

1 month

WLAN Installation

Planning and installation of a WLAN access point infrastructure.
Use of Cisco Linksys WRT 54G hardware.
Configuration of WEP/WPA security mechanisms.

Jun 2006 - Jun 2006

1 month

VoIP Router Installation

Installation of a VoIP router to provide Internet connectivity for network and telephony services.
Use of a FritzBox Fon 5050.
Configuration of firewall functionality.

May 2006 - May 2006

1 month

Tuning for Sun T1 Multithreading Systems

Tuning of application software for the CoolThreads technology of Sun SPARC T1 servers.
Use of Sun UltraSPARC T1 (T1000 and T2000) hardware.
Use of Solaris, Apache, Sendmail, MySQL, Oracle, JBoss, and Tomcat.

Apr 2006 - Apr 2006

1 month

Installation and Administration of OpenSolaris on Intel Hardware

Installation and administration of OpenSolaris on Intel servers.
Operation of services such as Sendmail, Postfix, and Apache on OpenSolaris 11.

Jul 2005 - Nov 2005

5 months

Administration of HP OpenView Data Protector on an HPUX cluster

Operation of online backups for Oracle databases and transaction logs using a complex backup schedule.
Stabilization of the automated backup process.
Training Oracle DBAs to resolve minor issues.
Collaboration with HP Service to resolve hardware and software issues.
Use of HP 9000 N-Class clusters, A-Class, HP VA7410, Cisco Catalyst 3750G switches, Brocade SAN switches and HP SureStore tape libraries.
Use of HP-UX 11i, HP OpenView, HP Data Protector and Oracle RMAN.

Jul 2005 - Jul 2005

1 month

Installation of HP OpenView Data Protector on an HPUX cluster

Replacement of the existing OmniBack software with HP Data Protector.
Migration of extensive backup logs.
Setup of an HP tape robot.
Configuration of automated email notifications.
Use of HP9000 N-Class clusters, A-Class, HP VA7410, Cisco 3750G/3560/2960 switches, Brocade SAN switches and HP SureStore tape libraries.
Use of HP-UX 11i, HP OpenView, HP Data Protector and Oracle RMAN.

Jun 2005 - Jun 2005

1 month

Installation of Oracle 9 for the development department

Setup of a test database for software development and simulation of billing processes.
Use of Intel server hardware.
Use of Oracle 9, JBoss, Tomcat and Java.

Jun 2005 - Jun 2005

1 month

Software development for online data services

Development of a solution for bidirectional data transfer over the Internet.
Use of Perl, Java, WebDAV and XML.
Operation based on Apache and Tomcat.

May 2005 - May 2005

1 month

Installation of a Scientific Linux server

Installation of a server with Scientific Linux as a free RHEL clone.
Use of Intel server hardware.
Configuration of DNS, DHCP, firewall, Apache, MySQL, Squid, Samba and Postfix.

Apr 2005 - Apr 2005

1 month

NFS Administration

Setup of automount connections via NFS.
Use of HP9000 and Intel servers.
Use of HP-UX, Linux, NFS and automount.

Apr 2005 - Apr 2005

1 month

Nokia Firewall Hardware Replacement

Replacement and migration of Nokia firewall hardware.
Takeover and expansion of existing firewall settings.
Use of Nokia 500s, Nokia Firewall and Cisco PIX 520.
Use of FreeBSD and CheckPoint FireWall1.

Mar 2005 - Mar 2005

1 month

Citrix Client Rollout

Implementation of a rollout to update all Citrix clients to version 8.
Use of an Intel server farm for approx. 1,200 workstations and Cisco Catalyst 3750G switches.
Use of Citrix and Windows 2003 Server.

Mar 2005 - Mar 2005

1 month

SUSE Cluster

Setup and commissioning of a fail-safe server for a software development department.
Support for software tests and nightly builds.
Connection of the server to the backup system.
Use of FSC Primergy RX300, FSC FibreCAT S80 and Cisco Catalyst 3560 switches.
Use of SUSE SLES9, Heartbeat, Perl, Java SDK, PaperCut, Phorum, Apache, Bugzilla, Webmin, HP Data Protector and Oracle.

Feb 2005 - Feb 2005

1 month

ADS Data Entry

Addition and maintenance of user data in Active Directory.
Adjustment of existing permissions to a new file server directory structure.
Use of Intel servers with Windows 2003 Server and ADS.

Feb 2005 - Feb 2005

1 month

Expansion of Big Brother Network Monitoring

Added new servers and network services to the Big Brother monitoring system.
Expanded the user interface using JavaScript.
Created and displayed throughput statistics with MRTG.
Integrated Java-based remote consoles.
Implemented status notifications by email using Perl scripts.
Worked with Intel servers, Sun SPARC servers, HP 9000 RISC servers, a diesel generator, and surveillance cameras.
Used Big Brother, Apache, PHP, Java, JavaScript, MRTG, Postfix, and Perl.

Feb 2005 - Feb 2005

1 month

Expansion of Access Control System

Installed new access terminals to expand the access control system.
Used Interflex IF 600/610 hardware.

Feb 2005 - Feb 2005

1 month

HP VA7400 Firmware Update

Installed new firmware on the disk controllers and disks of an HP VA7400.
Worked with HP 9000 N-Class clusters, A-Class systems, HP VA7410, and Brocade SAN switches.
Used HP-UX 11i, cluster packages, HP OpenView, HP Data Protector, and Oracle RMAN.

Feb 2005 - Feb 2005

1 month

Development Server Installation

Set up and commissioned a development and test server for software testing and nightly builds.
Implemented status notifications by email using Perl scripts.
Worked with FSC Primergy RX100.
Used SUSE SLES9, Java SDK, Perl, Apache, JBoss, and Tomcat.

Feb 2005 - Feb 2005

1 month

Software Development for Periodic Data Retrieval from a Wholesaler

Developed scripts for periodic data retrieval from a wholesaler.
Adjusted firewall rules and generated notification emails using a Perl script.
Used HP-UX, Linux, NFS, FTP, iptables, wget, shell scripts, and Perl.

Jan 2005 - Nov 2005

11 months

Gefrees, Germany

Mail System Administration

VSA ApothekenSysteme GmbH

Operation of an internal mail system based on Microsoft Exchange and mail proxies with a redundant setup.
Use of Intel server clusters, SAN storage systems, F5 BIG/IP load balancers, Cisco Catalyst 2960 switches and Cisco PIX 520 firewalls, as well as redundant Internet connectivity.
Use of Exchange 2003, Postfix, Apache and Trend Micro VirusWall, as well as greylisting and spam filtering mechanisms.

Jan 2005 - Jan 2005

1 month

Exchange Mail Cluster

Setup and commissioning of an Exchange 2003 mail cluster.
Migration of existing mailboxes to the new cluster platform.
Use of FSC Primergy RX300, FSC FibreCAT S80 and Cisco Catalyst 2960 switches.
Use of Windows 2003 Cluster Server and Exchange 2003.

Jan 2005 - Jan 2005

1 month

Java Software Development for Inventory Management

Development of Java software components for an inventory management system.
Integration of cash register printers and card readers.
Use of Eclipse 3, Tomcat and JBoss.

May 2002 - Sep 2005

3 years 5 months

Solaris Server Administration

Ensuring the availability and operation of Solaris servers.
Implementation of user authentication using PKI for a web portal.
Support for software development in the PKI environment.
Use of SPARC servers and Solaris.

Jan 2002 - Nov 2005

3 years 11 months

Munich, Germany

HP Cluster / Oracle Database System Administration

VSA GmbH

Ongoing administration of an HP cluster and an Oracle database system.
Troubleshooting and expansion of the hardware infrastructure.
Use of HP 9000 N-Class clusters, A-Class development computers, HP VA7410, Cisco Catalyst 6509 and 3750G switches, Brocade SAN switches and an HP SureStore tape library.
Use of HP-UX 11i, MC/ServiceGuard, HP OpenView, Oracle and SuSE Linux Enterprise Server 9.
Operation of JBoss, Tomcat and Java application software.

Industry experience

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Experienced in Information Technology, Professional Services, Banking and Finance, Transportation, Retail, and Insurance.

Information Technology

Professional Services

Banking and Finance

Transportation

Retail

Insurance

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Operations, Research and Development, and Product Development.

Information Technology

Operations

Research and Development

Product Development

Skills

System Administration Red Hat Enterprise Linux 4.0 Up To 10, Suse Linux Enterprise Server Up To 15, Debian 8 To 12, Ubuntu Up To 24.04, Alma Linux 8 Up To 10, Rocky Linux 8 Up To 10, Aix, Hp-Ux, Vmware Esxi Vsphere 4 To 7, Proxmox 6 And 7, Solaris 8 Up To 11, Sco Unix, Netbsd, Freebsd, Openbsd, Nanobsd, Novell Netware, Os/2, Citrix Server/Cluster, Microsoft Windows Server 2003 Up To 2022, Activedirectory, Openldap, Ucs, Zfs, Veritas Netbackup, Sendmail, Postfix, Veritas Volume Manager, Cluster File System
Programming Languages C, Java, Pascal, Go, Perl, Python, Ruby, Shell (Sh, Ksh, Bash)
Methods/Tools Ansible, Ansible Tower/Awx, Ansible Automation Platform, Puppet, Puppet Bolt, Hp Openview, Mc/Serviceguard, Mcafee Epolicy Orchestrator, Openvz, Hp Quality Center, Rhn, Redhat Satellite 5 And 6, Kickstart, Ads, Pxe Boot, Itil Process, Pci Dss (Payment Card Industry Data Security Standard)
Databases: Mysql Up To 8.X, Mariadb Up To 11.X, Oracle 9i Up To 19c, Ms Sql Server Up To 2019, Postgresql Up To 15.X
Networks: Lan, Wan, Tcp/Ip V4 And V6, Nis, Nis+, Nfs, Dns, Dnssec, Ldap, Snmp, Dhcp, Carp, Haproxy, Sendmail, Postfix, Imap, Ssl, Qualys Ssl Labs, Kerberos
Hardware: Sun Sparc Server, Sun Blade, Sun Fire, Ultrasparc-T2, T4, Ibm Rs6000, Pseries, Iseries, Brocade San Switch, Hp 9000 A-Series, N-Series, Hp Surestore Tape Library, Hp Va7410 Rack And Blade Server, Hp, Dell, Siemens, Ibm, Cisco 650x, 5x00, 37xx, 35xx, 29xx, Pix520
Web Technologies: Apache Httpd, Tomcat 5 Up To 10, Nginx, Load Balancing, Jboss Eap 4 Up To 8, Wildfly 8 Up To 27, Ibm Websphere, Apache Felix, Activemq, Artemis
Monitoring Nagios, Icinga, Icinga2, Check Mk, Zabbix, Splunk, Cacti, Jolokia, Hp Openview, Tivoli, Elk

Languages

German

Native

English

Advanced

French

Elementary

Education

Technician / Electrical Engineering

Statistics

Experience

Total positions 55

Experience in Information Technology 12.5 y

Avg length 8 m

Longest experience 6 y 2 m

Global experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Senior System Engineer Linux, System Engineer Application Operations Linux Systems, System Engineer Linux Systems

Main industries Information Technology, Professional Services, Banking and Finance

Main business areas Information Technology, Operations, Research and Development

Profile

Member since

September 2025

Last update

September 2026

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Frequently asked questions

Have questions? Find more information here.

Manfred is based in Lautertal (Odenwald), Germany.

Manfred speaks the following languages: German (Native), English (Advanced), French (Elementary).

Manfred has at least 23 years of experience. During this time, Manfred has worked in at least 40 different roles and for 33 different companies. The average length of individual experience is 5 months. Note that Manfred may not have shared all experience and actually has more experience.

Based on recent experience, Manfred would be well-suited for roles such as: Senior System Engineer Linux, System Engineer Application Operations Linux Systems, System Engineer Linux Systems.

Manfred's most recent position is Senior System Engineer Linux at DB InfraGo AG.

In recent years, Manfred has worked for DB InfraGo AG, DB Netz AG, PhoenixContact, CITTY Handelsgesellschaft, and L-Bank.

Manfred is most experienced in industries like Information Technology, Professional Services, and Banking and Finance. Manfred also has some experience in Transportation, Insurance, and Retail.

Manfred is most experienced in business areas like Information Technology, Operations, and Research and Development. Manfred also has some experience in Product Development.

Manfred has recently worked in industries like Professional Services, Transportation, and Retail.

Manfred has recently worked in business areas like Information Technology, Operations, and Research and Development.

Manfred attended education in Technician / Electrical Engineering.

The availability of Manfred needs to be confirmed.

Daily rate distribution

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<€640 €640-800 €800-960 €960-1120 €1440+

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Average rates for similar positions

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Daily rate avg. 808 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

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Median rate 776 €

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 27 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.