Senior IT-Administrator (m/w/d)

Senior IT Administrator (m/f/d) Who We Are We develop software for companies in the security industry. With nearly 30 years of experience in this field, we are the market leader. Over 350 companies use our DISPONIC software. Our team consists of more than 35 highly motivated colleagues who, with their dedication and expertise, master every challenge with flying colors every day. At the same time, it’s very important to us that we don’t lose sight of having fun at work. Join our team—work in a way that suits you! Are you looking for more than just a job? Do you want to work in an environment that allows for personal responsibility, offers modern technology, and truly values its employees? Then you’ve come to the right place! What you’ll be working on with us: You’ll support and advise our employees on-site, remotely, or via the ticket system. You’ll create and maintain our IT documentation and continuously develop our internal knowledge base. You’ll play a key role in ensuring the security of our IT infrastructure. Through continuous professional development, initiative, and a strong focus on security, you’ll keep our systems up to date. You’ll manage our entire infrastructure—from the network, firewall, and VPN to storage, VMware, backups, and other central system components. You will serve as the primary point of contact for software installations, the setup and maintenance of workstations, and the administration and monitoring of our server infrastructure, including our hosting environment for approximately 300 customers. You are responsible for the approximately 12 hosted Microsoft SQL Servers and play a leading role in coordinating collaboration with our IT service provider. You will contribute to the establishment and further development of our Information Security Management System (ISMS), as well as to the preparation for and implementation of ISO 27001 certification. You will not only provide support for IT projects but also actively contribute your own ideas and drive further developments forward. What you bring to the table: A completed vocational training program in the IT field, e.g., as an IT Specialist (m/f/d) for System Integration, an IT Systems Technician (m/f/d), or a comparable qualification. Several years of experience in system administration and the operation of complex IT infrastructures Very good knowledge of Windows Server, Microsoft 365, Entra ID, Azure, and practical experience with VMware Good knowledge of Microsoft SQL Server, IIS, networks, firewalls, VPN, storage, backup, and virtualization In-depth knowledge of IT security and, ideally, experience with ISMS / ISO 27001 Experience in planning and implementing IT projects, as well as in collaborating with external IT service providers A structured, solution-oriented, and independent work style with a strong sense of responsibility Strong communication and teamwork skills, as well as a passion for sharing knowledge Willingness to continuously develop your skills and learn about new technologies What you can expect from us: Work from home: Possible 2 days a week. 40-hour workweek – We work Monday through Friday. Permanent employment contract: Because long-term collaboration is important to us. 30 days of vacation and a flex-time account—for the right balance between work and personal life. State-of-the-art technology—whether in the office or working remotely, we’ll equip you with everything you need. Spacious, bright, air-conditioned offices in a new building—it’s a great place to work. Team and sports events – We celebrate successes together and strengthen our bonds outside of the daily work routine. Company pension plan – We plan for tomorrow together with you. Commuter pass or electric vehicle charging station—whether you use public transportation or drive an electric vehicle, we’ve got you covered. Shower facilities—for anyone who wants to come to work after a workout or go for a jog at lunchtime. Dogs welcome – Your four-legged friend is welcome to come to work with you. Do you have any questions or would you like to learn more about Bite AG? Then please contact our HR representative, Hanna Hlawatsch, by email at personal@bite.de or by phone at 49 711 380155 121 (available Mon–Fri between 8:30 a.m. and 12:30 p.m.). We look forward to hearing from you!