
Hanno D.
IT Professional and German Translator
Skills

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Portfolio
Work experience
IT System Administrator & Founder
Self Employed • Self-employed
Apr 2025 - Present • 1 yr 3 mos
• Support for small and medium-sized businesses and IT service providers as a freelance IT systems administrator. • I support companies in the administration of Microsoft 365, Windows systems, and general IT infrastructures. This includes user and permission management, maintenance tasks, troubleshooting, documentation, ticket handling, and ongoing IT operational support. • In addition, I work with IT service providers as an external technical resource, taking on tasks that are left over from daily operations or intentionally carried out outside of business hours. This includes maintenance work, updates, system checks, and other administrative IT tasks. Collaboration is fully remote and can be arranged on an hourly or project basis, depending on the needs of the client.
IT Systems Engineer
Company • Full-time
Apr 2023 - Apr 2025 • 2 yrs
• 10+ years of experience in IT support and system administration • 1st and 2nd level technical support for business environments • Microsoft 365, Azure AD / Entra ID, Exchange Online administration • User, access, and identity management • Network and remote support troubleshooting (VPN, firewalls, WLAN) • Experience with Jira, ServiceNow, and IT process optimization • Security and endpoint management with Microsoft Defender, Sophos, and Fortinet solutions • Strong background in technical communication and remote support
Senior System Administrator
Something went wrong • Full-time
Jan 2014 - Jan 2022 • 8 yrs
• 1st and 2nd level IT support for Windows, Linux, and macOS environments • User, access, and directory services administration • Server monitoring, troubleshooting, and incident resolution • Technical responsibility for customer systems and infrastructure operations • VMware, vSphere, ESXi, and Nutanix virtualization administration • Deployment and maintenance of server services (AD, DNS, DHCP, mail, file, print) • Network configuration, backup, and recovery operations • Technical documentation, communication, and localization-related tasks • Apprentice training in IT Systems Engineering