Hüseyin Ucar
Senior System Administrator
Experience
Senior System Administrator
Eigenbetrieb Bau, Vermögen und Informationstechnik Rhein-Neckar-Kreis
- ITIL-based first & second level support via OTRS
- System and user administration (Active Directory, GPO, print servers)
- Windows 10 migration, Windows Server 2016–2019
- Vendor management, documentation, knowledge transfer
Senior System Administrator
Progroup AG
- First & second level support via Ivanti/Landesk
- Active Directory, Exchange, Citrix, MDM (BlackBerry, iOS)
- SAP user support, printer management
Senior IT System Administrator / Project Support
Various clients: ITZBund, Deutsche Bahn, Bilfinger, Bechtle, Bürgschaftsbank, Athene Lebensversicherung, Helvetia Versicherung
- ITIL-based first & second level support via ServiceNow, BMC Remedy and ManageEngine
- System administration of Windows clients & servers, Citrix environments
- Migrations (Windows, Office, Outlook, Notes), rollouts, domain migrations
- Working in security-critical, regulated IT environments (government & finance)
Senior System Administrator / Second Level Support
Various clients: BASF, Roche Diagnostics, Merck, Deutsche Post DHL, KfW Bank, First Data / TeleCash
- International second level support via HP Service Manager, Unicenter Service Desk and HP OpenView
- Active Directory, Exchange, VMware, Citrix, SCCM
- SAP R/3 user management, hardware & software rollouts
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Government and Administration (11.5 years), Banking and Finance (7 years), Information Technology (7 years), Chemical (7 years), Transportation (7 years), and Pharmaceutical (7 years).
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Information Technology (18 years), Project Management (7 years), and Customer Service (7 years).
Summary
Freelance Senior IT System Administrator with more than 15 years of project experience in complex enterprise IT environments. Long-term assignments at federal agencies, banks, insurance companies, chemical and pharmaceutical firms, and in the public sector. Specializing in system administration, user & permissions management, migrations, and ITIL-based first and second level support with strong ITSM and ticketing system expertise.
Skills
- Ticket & Itsm Systems: Servicenow, Otrs, Ivanti/landesk, Bmc Remedy, Manageengine Servicedesk Plus, Hp Service Manager, Hp Openview Service Desk, Unicenter Service Desk, Valuemation
- Systems & Platforms: Windows Client & Server (2003–2019), Active Directory, Gpo, Exchange, Citrix, Vmware
- Management & Tools: Sccm, Baramundi, Ivanti, Mdm, Print Servers, Networking, Hardware
Languages
Education
BFW Heidelberg
Apprenticeship as IT Systems Electronics Technician · IT Systems Electronics Technician · Heidelberg, Germany
Certifications & licenses
ITIL v3 Certification
Profile
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