IT System Administrator

aconnic

IT System Administrator managing IT infrastructure of aconnic and NewTal. Implementing, administering, and supporting modern IT systems and networks in a hybrid environment.

Posted 6/28/2026full-timeHartmannsdorf • 🇩🇪 GermanyMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

DNSFirewallsLinuxMacOSVMware

About the role

Key responsibilities & impact

You plan, implement, and maintain the IT infrastructure for aconnic and NewTal, ensuring system availability and performance
You manage Microsoft and Linux servers as well as virtualization platforms such as VMware, Hyper-V, and Proxmox, ensuring a stable and high-performing IT environment
You maintain our network infrastructure with Fortinet firewalls and HPE switches, configure routing and VLANs, and optimize security and performance
You administer Active Directory, DNS, DHCP and other domain services, ensuring smooth integration
You plan and perform updates and patches, ensuring stability, security, and currency of our IT systems
You develop and manage our Microsoft 365 environment, including Entra, Intune, SharePoint, Teams, and Exchange Online
You manage Microsoft Terminal Servers, Remote Desktop Services and our backup infrastructure based on Veeam Backup & Replication
You support users at 1st and 2nd level support, resolve complex IT issues, and coordinate server and network projects together with internal and external partners

Requirements

What you’ll need

Degree in Computer Science, Information or Communication Technology, a comparable IT qualification (e.g., IT specialist for system integration) or several years of experience administering corporate IT environments
Experience in system integration and operation of modern IT infrastructures
Confident handling of Microsoft client and server operating systems, Linux and Apple macOS
Experience with VMware (ESXi, vCenter), Veeam Backup & Replication, and Microsoft 365 environments
Fluent German skills and good English skills
Team player with a strong sense of responsibility and a reliable working style
Willingness to learn, desire for continuous development and a proactive hands-on mentality
Ability to work independently and maintain oversight in complex IT environments

Benefits

Comp & perks

Monthly tax-free benefit card (Givve Card)
Decision-making processes on an equal footing, based on democratic principles
Flexible working hours with the option for two days of home office per week, no shift work and no on-call duty
A healthy work-life balance
Support for internal and external training opportunities so we can learn and grow together
Option to take a sabbatical
Health management because we care for you (e.g., on-site massages at the company)
Subsidised staff canteen with varied breakfast and lunch options, meal allowance and free beverages
Employee parking
Social intranet for sharing news and staying connected

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

System IntegrationMicrosoft Server Operating SystemsLinux AdministrationActive DirectoryDNSDHCPVeeam Backup & ReplicationFortinet FirewallsHPE SwitchesRouting and VLAN Configuration

Soft Skills

Team PlayerStrong Sense of ResponsibilityReliable Working StyleWillingness to LearnProactive Hands-On Mentality

Certifications

Degree in Computer ScienceIT Specialist for System Integration