Thomas S.
IT Consultant
Experience
Jul 2020 - Present
5 years 3 monthsGermany
IT Consultant
Öffentliche Hand / SÜ2
- Operating VMware, Veeam, and further developing the system
- Implementing BSI guidelines in design and setup
- Controlling and analyzing the VMware environment with PowerShell scripts
- Following ITIL processes
- Versioning scripts with TortoiseSVN
Sep 2019 - May 2020
9 monthsDüsseldorf, Germany
IT Consultant
Metro AG
- P2V of about 50 hosts
- Operating the global VMware environment
- Migrations, redesign, and troubleshooting
- NSX-T design and proof of concept
- Lifecycle management with vRA
- Monitoring the environment with vROps
- Controlling and analyzing the VMware environment with PowerShell scripts
Jun 2019 - Aug 2019
3 monthsMunich, Germany
IT Consultant
Kassenärztliche Vereinigung Bayerns
- Operating vCenter, ESXi, vSAN, Horizon, and App Volumes
- Monitoring the environment with vROps
- Troubleshooting with Log Insight
Apr 2019 - May 2019
2 monthsHamburg, Germany
IT Consultant
Lantana
- Troubleshooting VMware Horizon
- Upgrading Horizon to 7.8
- Upgrading vCenter and ESXi to 6.7
Feb 2018 - Mar 2019
1 year 2 monthsDüsseldorf, Germany
IT Consultant
Metro AG
- Redesigning the vCenter environment and NSX
- Migrating VMware 5.1/5.5 to 6.7 for 2000 hosts, 19,000 VMs, and 900 sites
- Upgrades, vSAN, and NSX design
- P2V, V2V, Guest Introspection, and McAfee Move
- Programming various control tasks in PowerShell
- Monitoring with vROps
- Troubleshooting with Log Insight
- NSX-T design and proof of concept
Jul 2017 - Dec 2017
6 monthsHamburg, Germany
IT Consultant
Körber AG
- Streamlead WAN Migration
Nov 2014 - Jun 2017
2 years 8 monthsHamburg, Germany
IT Consultant
OTTO GmbH & Co KG
- Administration of the existing VMware ESX 5.5 environment
- Removal of the vCloud Director
- Redesign of the VMware farms and migration of VMs to new farms
- Preparation for the migration to NSX
- Programming a complex Excel report for VMware in PowerShell
- Programming various control tasks in PowerShell
- Design and proof of concept for NSX-V
Sep 2013 - Sep 2014
1 year 1 monthHamburg, Germany
IT Consultant
Wincor Nixdorf / Portavis
- Administration of the existing VMware ESX 3.5 and 4.1 environment
- Design, setup and operation of a new VMware ESXi 5.1 environment in four datacenters (approx. 60 hosts in Germany, 7 hosts in the USA)
- Planning and execution of the migration of approx. 700 server VMs, including coordination with the end customer
- 2nd level support and on-call duty
- Administration of Linux and Windows servers
- Design and setup of two datacenters in New York
- Commissioning of two NAS systems (NetApp FS2400), each 50 TB
- Setup of CIFS filers including mirroring and data porting
- Setup of NFS shares for VMware and virtualization of servers
- P2V, V2V and administration of Linux and Windows servers
- Administration of Cisco 6xxx switches and HP BladeCenter
Jul 2012 - Aug 2013
1 year 2 monthsHamburg, Germany
IT Consultant
Germanischer Lloyd SE
- Administration of the existing VMware ESX 3.5 environment
- Design, setup and operation of a new VMware ESXi 5 environment in two datacenters
- Planning and execution of the migration of approx. 900 server VMs from ESX 3.5 to 5.0, including coordination with business units
- Administration of the LUNs on multiple HP 3PAR systems
- Administration of the Fibre Channel switches
- Monitoring of backups (Legato, Data Domain, tape library)
- 2nd level support and on-call duty
- P2V and administration of Linux and Windows servers
- Administration of Cisco 650x switches and HP BladeCenter
Feb 2012 - May 2012
4 monthsHamburg, Germany
IT Consultant
Stadtreinigung Hamburg
- Fault analysis of a VMware 5 farm with VDI and creation of an action plan for error resolution
- Interim management of a team
Sep 2010 - Dec 2011
1 year 4 monthsWiden, Switzerland
IT Consultant
SIKA Informationssysteme AG
- 2nd and 3rd level support in network, IPsec, MPLS, QIP, and VPN
- Migration of all 340 global site connections from IPsec to MPLS
- Resolving incidents during on-call duty
- Designing for various projects and technical project management
- Managing and coordinating providers
Oct 2009 - Feb 2010
5 monthsBern, Switzerland
IT Consultant
Softwarehaus
- Further development and maintenance of a publishing software
- Versioning the software with PVCS
- Further development in Visual Basic
- Supporting customers by phone and remote maintenance, fixing bugs and distributing the software
Jul 2009 - Oct 2009
4 monthsIT Consultant
Mineralölunternehmen
- Creating a concept for migrating from Novell to Microsoft
- Designing a strategy to migrate the NetWare-based IT environment to Microsoft with no downtime
- Setting up a virtual operating environment for the new server landscape
- Building the Microsoft environment and linking both environments via IDM/DirXML
- Migrating business-critical systems
- Implementing changes through change and risk management
May 2008 - Jun 2009
1 year 2 monthsIT Consultant
Outsourcer / Reederei
- Planning, moving, and subsequent operation of 16 Novell servers
- Creating a plan to move a shipping company's IT infrastructure to a data center with minimal downtime (6 Novell clusters, 4 standalone servers)
- Operating the systems for a transition period according to ITIL
- Migrating all NetWare and Linux-based Novell servers to the new data center
- Migrating data from the customer's SAN EMC CX 400/600 to the outsourcer's SAN (EMC DX)
- Bidirectional synchronization of users, passwords, and group memberships
- Setting up single sign-on with pass-through authentication
- Porting services from eDirectory to Active Directory
- Planning, executing, and monitoring migrations using integrated ticket and change management systems
- Monitoring, analyzing, and reporting results
- Monitoring the agreed SLAs
Jun 2007 - Apr 2008
11 monthsHamburg, Germany
IT Consultant
Personaldienstleister
- Establishing and training an IT department with a helpdesk and ticketing system
- Planning and carrying out the relocation of the head office
- Designing and building a redundant IP network based on Nortel 55xx Layer 3 switches for data and VoIP
- Migrating all sites to a new VPN provider without downtime
- Gathering requirements for migrating the financial accounting software to a central solution and speeding up payroll processes
- Planning and setting up a VMware environment with multiple EMC CX 600 systems
- Administering LUNs and replicating them to other sites
- Building the Microsoft environment alongside the existing Novell setup
- Bidirectional synchronization of users, passwords, and group memberships
- Setting up single sign-on with pass-through authentication
- Porting services from eDirectory to Active Directory
- Establishing a ticket and change management system
Jun 2003 - May 2006
3 yearsHanstedt, Germany
IT Consultant
Deerberg GmbH
- Operation and expansion of the existing server and application environment
- Networking of sites via a dedicated line
Jan 2003 - Jun 2006
3 years 6 monthsLüneburg, Germany
IT Consultant
Sparkasse Lüneburg
- Operation of the Novell servers and backup systems
- Maintenance and upkeep of the existing IT environment
Apr 2000 - Jun 2006
6 years 3 monthsHamburg, Germany
IT Consultant
Blohm & Voss Industrietechnik GmbH
- Operation and further development of the Novell network and the groupware solution
- Automated software distribution
- Setting up an Active Directory
- Consolidation of IP core services on Linux systems
Apr 1999 - Jun 2001
2 years 3 monthsHamburg, Germany
IT Consultant
Universitätskrankenhaus Hamburg Eppendorf Bluttransfusionsdienst
- Setup and operation of a Novell SFT III server system
Jun 1996 - Aug 2006
10 years 3 monthsHamburg, Germany
IT Consultant
Transwaggon GmbH
- Setup, operation and further development of a Europe-wide Novell-based IT solution with groupware and software distribution
- Training of the in-house IT staff
- Planning and setup of a local network between sites with automatic failover via VPN
- Provision of VPN access
- Setup and operation of a unified router/DMZ/firewall solution
- Design and setup of two mirrored CX 400 systems and their complete administration
Mar 1996 - Mar 1999
3 years 1 monthPinneberg, Germany
IT Consultant
Kreiskrankenhaus Pinneberg
- Maintenance and troubleshooting of Novell servers and connected workstations
Aug 1992 - Oct 2000
8 years 3 monthsRellingen, Germany
IT Consultant
ELNA GmbH
- Setup and operation of a groupware and software distribution solution
- Connecting branch offices via multi-protocol routers or VPN
- Ongoing expansion, operation, and troubleshooting
- Integration and administration of the AS/400 in the Novell network
Languages
German
NativeEnglish
IntermediateEducation
Mathematical-Technical Assistant
Certifications & licenses
ITIL V3 Foundation
Novell CNE
VMware Horizon
VMware NSX-T
VMware NSX-V
VMware VCP5
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