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IT - Systemadministrator (m/w/d) in Celle
IT system administrator providing user support, troubleshooting hardware/software, managing Active Directory users and permissions, installing and maintaining desktops, notebooks and mobile devices, monitoring patch/update/backup processes, and administering LAN/WLAN/VPN and server/data-center environments for a client in Celle.
IT-Systemadministrator (m/w/d) | Berlin / Brandenburg
IT-Systemadministrator role at FirstStep communications GmbH in Berlin Adlershof, administering servers, clients, and complex LAN/WAN network infrastructures for customers and internally, including firewall support and documentation. Core technologies include Microsoft servers, Windows clients, firewalls, monitoring, patch management, and optionally VMware/Hyper-V, Veeam, and routing/switching.
IT-Systemadministrator (m/w/d)
IT system administrator for a family-run sanitary/heating/energy wholesale company, handling software administration, 1st/2nd level support, and building/maintaining the network infrastructure across locations. Core technologies include Windows, Office 365, Entra AD, networking (WAN/LAN/VPN/DNS/DHCP/SIP), and storage (SAN/NAS).
IT-Systemadministrator Infrastruktur (m/w/d) am Hauptstandort Oldenburg
IT system administrator for the infrastructure team of a large construction group, responsible for LAN/WAN, WLAN, firewalls and SD-WAN, Windows domain and servers (AD, DNS, DHCP), virtualization, Exchange/Citrix/SQL, storage, and 2nd-level support.
Fachinformatiker/in für Systemintegration (m/w/d) 2027
Apprenticeship (Ausbildung) as an IT specialist for system integration at a manufacturer of construction and mining machinery. The role covers client operating systems, server/multi-user system installation, hardware and software troubleshooting, network topologies (LAN, WAN, WLAN), firewall technologies (VPN, antivirus, spam filters) and end-user support.
(Senior) Netzwerk Administrator
Administers and optimizes the company's network infrastructure (LAN, WAN, WLAN, firewalls) and VMware vSphere virtualization, manages Active Directory (Azure) and Office 365, and provides server monitoring and documentation in a Microsoft environment.
Network Engineer Datacenter Connectivity (m/w/d)
Network Engineer responsible for running and improving a datacenter network infrastructure per ITIL: ensuring stable operations, managing IT service providers against KPIs/SLAs, planning costs, supporting root-cause analysis and incident resolution, and collaborating on new network solution projects. Core technologies include LAN, WAN, WiFi, DDI (DNS/DHCP/IPAM), and ideally Cisco Nexus, ACI, switc
Fachinformatiker/-in (m/w/d)
IT specialist maintaining and supporting the airport's aviation security screening systems and network/communication infrastructure (LAN, WAN, WLAN, VPN) at 2nd/3rd level, troubleshooting faults, supporting maintenance and external vendors, and participating in on-call duty.
Azubi zum Fachinformatiker Systemintegration (m/w/d)
Apprenticeship (Ausbildung) as Fachinformatiker für Systemintegration at an IT system-integration company in Aalen, Germany. The apprentice learns to build, operate and secure IT infrastructures, working on real customer projects with Windows Server (Active Directory, Exchange, SQL), virtualization (Hyper-V, vSphere), firewalls/IT security (Sophos) and networks (WAN, LAN, WLAN, VLAN).
Senior IT-Systemadministrator Schwerpunkt Netzwerke und IT-Security (w/m/d)
Senior IT system administrator at meco IT in Ravensburg, focused on network infrastructure and IT security: planning, sizing, migration and implementation of customer network projects, 2nd-level network support, on-site installations and WLAN site surveys, plus administration of internal WAN/VPN/firewall/switching/WLAN infrastructure. Core technologies include TCP/IP, VPN, routing, switches, firew
IT-Supporter (m/w/d)
IT support role at FERCHAU's Ulm branch handling first-level support: taking and resolving IT incidents via ticketing systems, installing and configuring hardware/software, troubleshooting LAN/WLAN/VPN network issues, managing Active Directory user accounts, and documenting cases in an ITSM system. Core technologies include Microsoft operating systems, Active Directory/Exchange, and TCP/IP network
Systembetreuer / IT-Administrator (m/w/d)
In-house IT administrator for a mid-sized German office/building-fit-out manufacturer, responsible for the company's entire IT infrastructure across two sites: networks and intranet, firewalls and IT security, servers and databases, Active Directory user management, and day-to-day user support and troubleshooting.
IT-Systemadministrator im 1st und 2nd Level Support (m/w/d)
IT system administrator providing 1st and 2nd level support for a small German IT system house, administering Windows client and server environments, Active Directory, virtualization (VMware/Hyper-V), Exchange/Office 365, and network components, plus monitoring and ticket documentation for SMB clients.
Fachinformatiker:in IT/OT (m/w/d)
IT/OT specialist at a German water/wastewater treatment plant manufacturer, responsible for information security (ISO 27001, NIS2), firewall/network/server/client administration, Windows/Active Directory and Linux systems, and first-level support.
IT-Systemadministrator (m/w/d) für Server- und Netzwerkadministration (m/w/d)
IT system administrator responsible for installing, administering, operating and maintaining servers, networks and applications, plus internal user and hardware/software support. Core technologies include Windows client/server systems, network infrastructure (LAN, WLAN, VPN), Linux, MySQL databases, Java and SAP administration.
Fachinformatiker für Systemintegration (m/w/d) 2027
Apprenticeship (Ausbildung 2027) as Fachinformatiker für Systemintegration at a small IT system house in southern Germany. The apprentice learns to plan, configure and administer Windows Server, VMware, Veeam, Microsoft 365 and network components (TCP/IP, DNS, DHCP, VLAN, firewall) and to handle 1st/2nd level support, backups and security concepts.
IT-Systemadministrator (m/w/d)
IT system administrator at a growing IT system house in southern Germany, responsible for planning, configuring, and operating Windows Server, VMware, Veeam, and Microsoft 365 environments, plus networking (TCP/IP, DNS, DHCP, VLAN, firewall) and 1st/2nd level support. Work is on-site in Ehingen or Bad Saulgau, or hybrid/remote.
IT-Administrator (m/w/d) – Schwerpunkt IT-Infrastruktur
IT-Administrator role at an electrical wholesale company in Freiburg, focused on running and developing the internal IT infrastructure: VMware virtualization, Windows servers, SonicWall firewalls, HPE Aruba LAN, Lancom WLAN and VeloCloud SD-WAN, plus 2nd/3rd-level support and on-call rotation.
Fachinformatiker/in Systemintegration (m/w/d)
IT systems administrator for a healthcare IT services provider: plans, installs, configures and maintains servers, networks and medical device integrations in clinics and practices, handling Windows Active Directory/Linux, virtualization (VMware, Proxmox), troubleshooting and GDPR/medical-device compliance.
IT Security Engineer (m/w/d)
IT security engineer role at FERCHAU, an engineering/IT staffing and services firm, delivering security projects for external clients. Day to day: identifying vulnerabilities in IT infrastructure, investigating security incidents, supporting audits, and administering firewalls, proxy servers and network components.