Recommended expert

Michael Kuschel

DevOps, Linux Administrator, Infrastructure, Security

Michael Kuschel
Moosburg an der Isar, Germany

Experience

Apr 2019 - Present
6 years 10 months

DevOps, Linux Administrator, Infrastructure, Security

ERGO / ITErgo

  • Installation, design, maintenance, and further development of the server farm, covering hardware and software.
  • Migrating live systems while minimizing downtime.
  • Handling tickets and changes in daily operations.
  • Documenting changes and processes in Confluence.
  • Test runs in the development environment.
  • Configuration and administration of Linux systems.
  • Configuration and administration of backup systems (Dell Networker, DataDomain).
  • Administration of the Checkpoint firewall.
Feb 2017 - Mar 2019
2 years 2 months

Coordinator and Senior Administrator

Software House for Patent Systems

  • Reorganization of the entire hardware and network structure in the data center.
  • Optimization of operating systems (Linux, Windows, Windows Server).
  • Documentation of hardware and processes.
  • Creation of a dual monitoring system (Nagios, Zabbix).
  • Creation of a backup structure.
  • Virtualization of the old environment (VMware vSphere 6.x).
  • Optimization of the Oracle server structure and setup of an RMAN backup system.
  • Setup, porting, and migration from Lucene to Elasticsearch (Elasticsearch Stack 6).
  • Setup of an iSCSI storage environment.
  • Development of a test system.
Mar 2013 - Apr 2013
2 months

Design, planning, and implementation

Mr. Drevensek

  • Analysis and planning of required resources.
  • Creating the project plan.
  • System installation on servers including hardening (Debian 6.x).
  • Definition and implementation of the rights structure.
  • Customizing servers for assigned services.
  • Configuration and administration of Apache 2.2 and PHP 5.4.
  • Creating and managing X.509 certificates.
  • Configuration and administration of Postfix, Courier, SASL, SpamAssassin, and Amavis.
  • Configuration and management of the MySQL server.
  • Setting up central load balancers and firewall.
Mar 2012 - May 2012
3 months

Design, planning, and implementation

Mr. Gödel

  • Analysis and planning of required resources.
  • Creating the project plan.
  • Installation of the operating system on servers including hardening (OpenSuSE 12.2).
  • Setting up the Samba 3 domain and user permissions.
  • Building the LDAP structure.
  • Customizing servers for assigned services.
  • Integrating Windows clients into the domain and setting up printers.
  • Training the local administrator.
  • Setting up the firewall/VPN gateway to the internet.
Mar 2007 - Sep 2007
7 months

Design and implementation programmer

Enovis Management

  • Analysis of the provided source code.
  • Adapting to the new operating system.
  • Changing database access from Oracle to MySQL and adjusting permissions.
  • Setting up development and production environments.
  • Documenting changes and test runs in the development environment.
  • Configuration and administration of the web servers Apache 1.2 and Tomcat 4.1.
  • Setting up the backup system.
May 2003 - Apr 2018
15 years

Coordinator and Senior Administrator

Alphatrust

  • Installation, planning, maintenance and enhancement of the web farm with 25 servers in hardware and software
  • Migration of production systems while minimizing downtime
  • Monitoring the entire infrastructure
  • Running multiple PHP versions and web servers at the same time on each server
Jan 1999 - Dec 2016
18 years

System and Network Administrator

Intetra Networking

  • Set up a data center in Unterschleissheim
  • Administration of the Linux server environment
Jan 1992 - Dec 1995
4 years

Software – Archiving Solutions

Ush-Datentechnik

  • Programming archiving solutions based on dBase/Clipper and Visual Objects
  • Installation of archiving solutions
Jan 1987 - Dec 1992
6 years

Hardware

Skyline

  • Production of Amiga hardware (external hard drive)
  • Manufacturing client and server hardware based on custom requirements
  • Installation and maintenance of Novell networks on ARC and Ethernet

Summary

  • Linux systems: administering a variety of Linux distributions in standalone and cluster/HA environments.
  • Several years of network administration experience using Cisco and Brocade components.
  • 20 years of experience in internet service providing.
  • Key user of Apache, SSL, Postfix/Sendmail, Bind9, MySQL, and system security. Red Hat 7 and 8 including their derivatives, Debian up to version 10, including Ubuntu.
  • Strong knowledge of VMware 5.5 to 6.7, Docker and Podman, Kubernetes, Git, SVN, Subversion, Tomcat, Java 7/8, JBoss 7, Wildfly 8/10, Oracle Virtualization Manager.
  • Very good knowledge of scripting languages (Bash, Ksh, Perl, Python, Groovy).
  • Good knowledge of programming languages (C, C++, Pascal).
  • Strong knowledge of SCO Unix 3.2 / OpenServer 3.0.
  • Good knowledge of Sun/Oracle Solaris 9/10, BSD, macOS.
  • Experience with HP-UX 10/11.
  • Experience with Matrix42, Confluence, Jira, PRTG, CheckMK, Grafana, Networker, Oracle DB 12c and 19c, Netscaler ADC VPX, Checkpoint R80.40, R81.10.
  • Basic knowledge of NetApp, DataDomain

Skills

Operating Systems

  • Linux (Debian, Redhat, Suse) 20 Years +++
  • Windows (Nt, 2000, Xp, 7, 10) 20 Years +++
  • Windows Server (Nt, 2000, 2003) 20 Years ++
  • Windows Server (2008, 2012, 2016) 5 Years +
  • Hp-ux 10.x (Older Versions) 5 Years ++
  • Solaris 9/10 (Sun, Oracle) 10 Years ++
  • Sco-unix Up To 3.2v4.2 10 Years ++
  • Xenix (System V) 5 Years ++
  • Novell (Various Versions) 20 Years ++

Programming

  • Scripting Languages: Perl/cgi, Bash, Ksh, Csh, Python, Groovy 15 Years ++
  • Web Development: Javascript, Php, Perl, Html, Css 10 Years ++
  • Programming Languages: C/c++, Pascal 5 Years ++

Databases

  • Mssql 1 Year +
  • Sybase 4 Years ++
  • Mysql/mariadb 8 Years +++
  • Postgresql 3 Years ++
  • Dbase/clipper/vo 25 Years +++
  • Oracle 11gr2 And 19c/rman (Administration Only) 3 Years ++

Network

  • Tcp/ip, Lan/wan, Intranet/internet 20 Years +++
  • Network Routing 20 Years +++
  • Load Balancing (Netscaler) 10 Years +++
  • Fc Connectivity (Brocade) 10 Years ++
  • Checkpoint R80.40, R81.10 3 Years ++

Miscellaneous

  • Git, Svn, Cvs 6 Years +
  • Apache, Nginx, Lighttpd, Tomcat 18 Years +++
  • Eclipse 6 Years ++
  • Visual Studio 10 Years +
  • Zabbix, Nagios, Prtg 15 Years +++
  • Cms (Typo3) 5 Years +
  • Proxy (Squid) 10 Years ++
  • Samba (Various Versions) 10 Years ++
  • Openssl 10 Years ++
  • Certificate Management 10 Years ++
  • Firewall Configuration (Linux-based) 15 Years +++
  • Kerberos 3 Years ++
  • Openldap 5 Years ++
  • Tomcat, Jboss, Wildfly 3 Years ++
  • Docker, Podman, Kubernetes, Ansible, Yaml 2 Years ++
  • Dell Networker 3 Years ++

Protocols

  • Http/https
  • Snmp
  • Smtp
  • Pop3/imap
  • Dns
  • Dhcp
  • Ntp
  • Smb
  • Ldap

Hardware

  • Pc Hardware 25 Years +++
  • Server Hardware (Dell, Siemens/fujitsu, Hp) 20 Years +++
  • Routers (Cisco) 20 Years +++

Languages

German
Advanced
English
Intermediate

Certifications & licenses

Cisco Certified CCNA Routing And Switching

Cisco

Microsoft MCSE Windows NT

Microsoft

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