The Leibniz Institute for Immunotherapy (LIT) researches and develops new immunotherapies for the treatment of tumors, autoimmune diseases and transplant rejection. For the NGS and Data Technologies Core Facility at the Leibniz Institute of Immunotherapy we are looking for a Linux IT System Administrator (m/f/d) - MR-2025-01 full-time (40.1 hours per week, part-time possible), initially limited to two years with the possibility of further employment. Main tasks: The Linux environment (Scientific Computing Infrastructure) is embedded in the central IT infrastructure of the LIT, which is operated by an in-house IT administrator together with an external service provider. The tasks of the Linux IT system administrator include Administration and conceptual development of the scientific computing infrastructure at LIT Planning and rolling out patches, upgrades and configuration adjustments Monitoring, early detection and elimination of faults as well as error and performance analyses Setup and operation of various server applications, virtual machines and container-based applications Installation, maintenance and administration of Linux workstations Support of bioinformatics software packages for the evaluation of analysis data and the associated laboratory information systems with web application Technical documentation and management of existing software and hardware, Linux IT infrastructure and IT processes (Linux clusters and PCs) IT-side support for research and development projects Ensuring IT and data security in collaboration with the service provider Close cooperation with IT, e.g. vacation replacement in 1st / 2nd level user support Requirements: Successfully completed (technical) university degree in computer science, physics or mathematics or completed training as an IT specialist or a comparable qualification Very good knowledge of Debian/Ubuntu or other Linux derivatives in corporate use, common container technologies and backup systems Experience in system hardening, use of mandatory access control frameworks (e.g. AppArmor, SELinux) and rights management using access control lists (ACLs) Basic knowledge of orchestration tools such as Ansible or Puppet Technical aptitude, reliability, proactive approach and sense of responsibility Willingness to familiarize yourself with new technologies Good written and spoken German or English skills Desirable: Basic knowledge in the administration of Kubernetes and Slurm clusters Several years of professional experience in Linux system administration Knowledge of data security, databases and storage technologies We offer: Responsible and varied field of activity Thorough induction Flat hierarchies and short decision-making processes A highly motivated and collegial team Excellent professional and personal development Flexible working hours to reconcile family and career Company pension scheme (VBL) Annual special payment Capital-forming benefits Job ticket and much more. Remuneration is according to TV-L. The LIT is particularly committed to the compatibility of family and career. Severely disabled persons (m/f/d) will be given preference if they are otherwise equally qualified. Please indicate any severe disability in your application. Please note that we cannot cover any costs that you may incur during an interview. If you have any questions, please contact Prof. Dr. Michael Rehli (phone: 0941/94438 487, e-mail: michael.rehli@lit.eu) or Dr. Jakob Simeth (phone: 0941/94368553, e-mail: jakob.simeth@lit.eu). We look forward to receiving your detailed application. Please apply via the link or our homepage https://lit.eu by 14.12.2025, stating the ID.