Steffen Jaiser available

Steffen Jaiser

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

available
Profileimage by Steffen Jaiser Unix/Linux Specialist, Cyber Security und DevOps,  Senior Consultor from Frankfurt
  • 60322 Frankfurt Freelancer in
  • Graduation: MICT
  • Hourly-/Daily rates:
  • Languages: German (Native or Bilingual) | English (Full Professional) | French (Elementary)
  • Last update: 13.08.2020
KEYWORDS
PROFILE PICTURE
Profileimage by Steffen Jaiser Unix/Linux Specialist, Cyber Security und DevOps,  Senior Consultor from Frankfurt
ATTACHMENTS
English version Profile including project history

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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

    • Federal state authority
    • 250-500 employees
    • Public service
  • Linux and application support, Automation
    • 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

    • Siemens AG
    • >10.000 employees
    • Energy, water and environment
  • Server and application hardening, automated
    • Automation of server hardening (Linux and Solaris) (Ansible/Scripting)

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


  • 01/2018 - 07/2018

    • ITZBund
    • 1000-5000 employees
    • Public service
  • Linux and application architecture
    • 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


TIME AND SPATIAL FLEXIBILITY
Europe, english or german speaking
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