Thomas S.-IT Consultant

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Experience
IT Consultant
Public Sector / SÜ2
- Operation of VMware, Veeam and further development of the system
- Implementation of BSI requirements in the design/construction
- Control and analysis of the VMware environment using PowerShell scripts
- Working according to ITIL processes
- Version control of scripts with TortoiseSVN
IT Consultant
Metro AG
- P2V of approx. 50 hosts
- Operation of the global VMware environment
- Migrations, redesign and troubleshooting
- Design and Proof of Concept for NSX-T
- Lifecycle management with vRA
- Monitoring of the environment with vROps
- Control and analysis of the VMware environment using PowerShell scripts
IT Consultant
Kassenärztliche Vereinigung Bayerns
- Operation of vCenter, ESXi, vSAN, Horizon and AppVolume
- Monitoring of the environment with vROps
- Troubleshooting with Log Insight
IT Consultant
Lantana
- Troubleshooting VMware Horizon
- Upgrade of Horizon to Version 7.8
- Upgrade of vCenter and ESXi to 6.7
IT Consultant
Metro AG
- Redesign of the vCenter environment and NSX
- Migration from VMware 5.1/5.5 to 6.7 (2000 Hosts, 19000 VMs, 900 Locations)
- Upgrades, vSAN and NSX design
- P2V, V2V, Guest Introspection and McAfee MOVE
- Programming of various control tasks in PowerShell
- Monitoring of the installation with vROps
- Troubleshooting with Log Insight
- Design and Proof of Concept for NSX-T
IT Consultant
Körber AG
- Streamlead WAN Migration
IT Consultant
OTTO GmbH & Co KG
- Administration of the existing VMware ESX 5.5 environment and removal of vCloud Director
- Redesign of the VMware farms and migration of VMs to the new farms
- Preparation for the migration to NSX
- Programming of a complex Excel analysis of VMware in PowerShell
- Programming of various control tasks in PowerShell
- Design and Proof of Concept NSX-V
IT Consultant
Wincor Nixdorf Portavis
- Administration of the existing VMware ESX 3.5 & 4.1 environment
- Design, setup and operation of a new VMware ESXi 5.1 environment in four data centers (approx. 60 hosts in Germany, 7 hosts in the USA)
- Planning and execution of the migration of approx. 700 server VMs from 3.5/4.1 to 5.1, including coordination with the end customer
- 2nd Level Support and on-call duty
- Administration of Linux and Windows servers
- Design and setup of two data centers in New York
- Commissioning of two NAS systems (NetApp FS2400) à 50 TB
- Setup of CIFS filers including mirroring and data porting
- Setup of NFS shares for VMware and server virtualization
- P2V, V2V and administration of Linux- and Windows-based servers
- Administration of the Cisco 6xxx switches and the HP Bladecenter
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 data centers
- Planning and execution of the migration of approx. 900 server VMs from ESX 3.5 to 5.0, including coordination with the specialist departments
- Administration of the LUNs on several HP 3PAR systems and the Fibre Channel switches
- Monitoring of data backups (Legato, Data Domain, Tapelibrary)
- 2nd Level Support and on-call duty
- P2V and administration of Linux and Windows servers
- Administration of the Cisco 650x switches and the HP Bladecenter
IT Consultant
Stadtreinigung Hamburg
- Troubleshooting of a VMware 5 farm with VDI and development of an action plan to resolve the issues
- Interim management of a team
IT Consultant
SIKA Informationssysteme AG
- 2nd and 3rd Level Support in the areas of networking, IPsec, MPLS, QIP and VPN
- Migration of all 340 site connections worldwide from IPsec to MPLS
- Troubleshooting while on call
- Design for various projects and technical project management
- Provider management and coordination
IT Consultant
Software House
- Further development and support of publishing software
- Software versioning with PVCS
- Further development of the existing software in Visual Basic
- Customer support by telephone and remote maintenance, including troubleshooting and software distribution
IT Consultant
Mineral Oil Company
- Preparation of a concept for migration from Novell to Microsoft
- Design of a strategy to migrate the NetWare-based IT environment to a Microsoft environment with uninterrupted migration of clients and servers
- Virtual operating environment for the new server environment
- Setup of the Microsoft environment and connection of both environments via IDM/DirXML
- Migration of business-critical systems
- Implementation of changes via change and risk management
IT Consultant
Outsourcer / Shipping Company
- Planning, relocation and subsequent operation of 16 Novell servers in a data center
- Concept for relocating 6 Novell clusters and 4 standalone servers with application data with minimal downtime
- Operation of the systems during the transition period in accordance with ITIL processes
- Relocation of all NetWare- and Linux-based Novell servers to the new data center
- Data migration from the customer's SAN EMC CX 400/600 to the outsourcer's SAN EMC DX
- Bidirectional exchange of users, passwords and group memberships, as well as setup of a Single Sign-On
- Porting of services from eDirectory to Active Directory
- Planning, execution and monitoring of relocations via ticket and change management systems
- Monitoring, evaluation and reporting of results
- SLA monitoring
IT Consultant
Staffing Service Provider
- Setup and training of an IT department with helpdesk and ticketing system
- Planning and execution of the headquarters relocation
- Planning and construction of a redundant IP network based on Nortel 55xx Layer-3 switches for data and VoIP
- Seamless transfer of all sites to a new VPN provider
- Requirements gathering for the migration of commercial payroll software and acceleration of payroll processing
- Planning and setup of a VMware environment with several EMC CX 600 systems
- Administration of LUNs and replication to additional sites
- Setup of the Microsoft environment alongside the existing Novell environment
- Bidirectional exchange of user accounts, passwords and group memberships, as well as Single Sign-On
- Porting of services from eDirectory to Active Directory
- Establishment of a ticket and change management system
IT Consultant
Deerberg GmbH
- Operation and expansion of the existing server and application environment
- Connecting the locations via leased line
IT Consultant
Sparkasse Lüneburg
- Operation of the Novell servers and backup systems
- Maintenance and upkeep of the existing IT environment
IT Consultant
Blohm & Voss Industrietechnik GmbH
- Operation and further development of the Novell network and groupware solution
- Automatic software distribution
- Setting up an Active Directory and consolidating IP-based services on Linux systems
IT Consultant
Universitätskrankenhaus Hamburg Eppendorf Bluttransfusionsdienst
- Setting up and operating a Novell SFT III server system
IT Consultant
Transwaggon GmbH
- Setting up, operating and further developing a Europe-wide Novell-based IT solution with groupware, software distribution and automated workstation setup
- Training the company's internal IT staff
- Planning and setting up a local network between locations with automatic failover via VPN
- Providing dial-in access via VPN
- Setting up and operating a standardized router, DMZ and firewall solution
- Designing and setting up two mirrored EMC CX 400 systems and administering them
IT Consultant
Kreiskrankenhaus Pinneberg
- Maintenance and troubleshooting of the Novell servers and connected workstations
IT Consultant
ELNA GmbH
- Setup and operation of a groupware and software distribution solution
- Connecting the branches via multiprotocol router or VPN
- Continuous expansion, operation, and troubleshooting
- Connecting and administering the AS/400 in the Novell network
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Professional Services, Transportation, Retail, Government and Administration, and Manufacturing.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Operations, Project Management, and Customer Service.
Skills
Training
- Mathematical And Technical Assistant
- Business Information Systems Specialist
- Novell Cne
- Vmware Vcp5, Nsx-V, Nsx-T, Horizon
- Firewall Administrator
- Itil V3 Foundation
Courses
- Vmware Vsphere, Esx(I), Vcsa, Nsx-V/T
Technical Skills
- Vmware Vra, Vrops, Horizon, Appvolume, Veeam
- Mcafee Move, Trend Micro Deepscan
- Ms Windows Up To Windows 2016 / Windows 10
- Ms Sql Server Up To 2008
- Ms Exchange Up To 2010
- Ms Active Directory
- Ms Terminal Services
- Linux: Suse, Redhat
- Tortoisesvn, Pvcs (Micro Focus)
- Vital Qip, Dns, Dhcp, Vpn, Ipsec, Ospf, Mpls, Xdsl
- Firewall
- Novell Netware, Oes, Idm, Groupwise, Zenworks, Bordermanager
- Citrix Metaframe Up To Version 4
- Emc Cx & Hp 3par Storage Solutions
- Brocade San Switches
- Experience With Cisco, 3com & Nortel
- Backup Solutions: Tivoli, Commvault, Arcserve, Backupexec, Legato
- Ticket Systems: Otrs, Omnitracker, Ontrack, Remedy
Programming
- Powershell, Vb, Pl/1, C, Delphi, Cobol, Rpg Ii/Iii, Wsu, Sql
Additional Skills
- Teaching Activities
- Executive Management, Personnel Management, Project Management
- 1st / 2nd / 3rd Level Support
Industry Knowledge (In Descending Order By Project Size)
- Wholesale And Retail, Banking & Financial Services
- Chemical Industry
- Transport And Logistics
- Shipping Companies, Mineral Oil
- Data Centers / Outsourcers
- Staff Leasing, Software Development
- Shipbuilding / Shipyards, Defense Industry
- Electrical Appliance Manufacturing
- Hospitals, Schools
- Skilled Trades, Healthcare
Languages
Education
Mathematical and Technical Assistant
Business Information Systems Specialist
Certifications & licenses
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Thomas is based in Kaltenkirchen, Germany.
Thomas speaks the following languages: German (Native), English (Advanced).
Thomas has at least 32 years of experience. During this time, Thomas has worked in at least 1 role and for 21 different companies. The average length of individual experience is 1 year and 5 months. Note that Thomas may not have shared all experience and actually has more experience.
Based on recent experience, Thomas would be well-suited for roles such as: IT Consultant.
Thomas's most recent position is IT Consultant at Public Sector / SÜ2.
In recent years, Thomas has worked for Public Sector / SÜ2.
Thomas is most experienced in industries like Information Technology, Transportation, and Professional Services. Thomas also has some experience in Retail, Government and Administration, and Manufacturing.
Thomas is most experienced in business areas like Information Technology, Operations, and Project Management. Thomas also has some experience in Customer Service.
Thomas has recently worked in industries like Government and Administration.
Thomas has recently worked in business areas like Information Technology and Operations.
Thomas attended education in Mathematical and Technical Assistant.
Thomas has 6 certificates. Among them, these include: Horizon, Itil V3 Foundation, and Novell CNE.
The availability of Thomas needs to be confirmed.
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Average rates for similar positions
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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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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