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Profileimage by Steffen Jaiser Unix/Linux Specialist, Cyber Security und DevOps, Senior Consultor from Frankfurt

Steffen Jaiser

Frankfurt
available

Last update: 14.10.2023

Unix/Linux Specialist, Cyber Security and DevOps, Senior Consultor

Company: Jaiser & Jaiser GbR
Graduation: MICT
Hourly-/Daily rates: show
Languages: German (Native or Bilingual) | English (Full Professional) | French (Elementary)

Keywords

Attachments

CV_Steffen_Jaiser_english.doc

Skills

Project management, Operationsmanager / Infrastruktur Manager (Link between Operationsteams and Service Delivery manager), Change manager, Teamlead, Capacity Management, Administration (Senior Consulter / Experte), DevOps, Cyber Security

Operating Systems: RedHat RHEL 4/5/6/7, SUSE SLES 10/11/12/15, HP-UX Operating System (all Versions), AIX (4.3.3/5.0/5.1), Sun Solaris (7/8/9), Tru64

High Availability: HP MC/SG und Metrocluster, Veritas Cluster

Script and Programming lanuages: ksh, bash, Python, perl, Java

Middleware: Apache Webserver, Tomcat Application Server, Peppol, JBoss, Coremedia

Hardware: HP-UX Blade Technology, HP-UX Virtual Connect

Methods: HP-UX/Linux Performance Analysis (sar, glance, OVPM), VMWare vSphere 5.1, Networks (Lan/Wan, TCP/IP), SAN (EMC), EVA HP Storage, Altiris

Backup: HP DataProtector 5.1 / 5.5 / 6.0, Tivoli Storage Manager, EMC Networker

Datenbases: Oracle 9/10/11, brtools, RMAN, SQL

ITIL Foundation certification

Project history

06/2019 - Present
Linux and application support, Automation
Federal state authority (Public service, 250-500 employees)

  • Linux administration (SLES, Ubuntu, Debian, CentOS)

  • Imlementing SuSE RMT Server

  • Move LDAP Server (new server, new DB, changing to secure implementation (TLS)

  • Implementation of different applications including interface management, Firewallsettings and documentation

  • Implementing a Peppol AP

  • Implementation and setup of an Ansible infrastructure with enhanced security

  • Certificatemanagement

08/2018 - 05/2019
Server and application hardening, automated
Siemens AG (Energy, water and environment, >10.000 employees)

  • Automation of server hardening (Linux and Solaris) (Ansible/Scripting)

  • Automation applikation hadening (Apache, Firefox, Gnome Display Manager) (Ansible/Scripting)

01/2018 - 07/2018
Linux and application architecture
ITZBund (Public service, 1000-5000 employees)

  • Linux architecture (Suse Linux Enterprise Server)

  • Database ( MySQL) architecture

  • Patchmanagement architecture

  • Automation architecture (Evaluation Ansible/Puppet)

  • Monitoring architecture

  • Emailserver architecture

  • Linux Hardening, planning and implementing

Local Availability

Open to travel worldwide
Europe, english or german speaking
Profileimage by Steffen Jaiser Unix/Linux Specialist, Cyber Security und DevOps, Senior Consultor from Frankfurt Unix/Linux Specialist, Cyber Security and DevOps, Senior Consultor
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