Linux System Administrator

Linux System Administrator / DevOps Engineer (m/f/d) Permanent position, full-time - Cologne Your tasks You form the backbone of our IT services. Your focus is on the interface between classic administration and a modern DevOps approach: Virtualization and containerization: You are responsible for the operation and optimization of virtual servers (Linux and Windows) and drive modernization using Proxmox and Kubernetes School infrastructure: You provide identity and SSO cloud platforms as well as learning management systems (e.g. Moodle) for schools and ensure smooth operation E-commerce and web: Provision of highly available, Linux-based environments for our e-commerce customers (web stores) Network and security: Support and optimization of the network infrastructure and firewalls to ensure the highest security standards for our customers DevOps and automation: you use container technologies and DevOps methods to automate deployments and increase efficiency Operations: Data backup, proactive monitoring and patch management of the entire environment are part of your routine Your profile You have a degree in computer science, an IT apprenticeship or a comparable qualification You have sound knowledge in the administration of Linux servers (Debian, Ubuntu, RHEL or similar) You have demonstrable experience with Proxmox and a deep understanding of container orchestration with Kubernetes (K8s) You have experience with CI/CD pipelines, automation tools (e.g. Ansible, Terraform) and versioning (Git) You have basic knowledge of Windows servers and solid knowledge of networking (TCP/IP, firewalls, routing) You work in a structured, solution-oriented manner and are a real team player Fluent written and spoken German is a prerequisite - other languages are welcome What we offer you You can expect a varied job in the development of the IT division in the NetCologne Group as well as an innovative and dynamic company with flat hierarchies that is geared towards growth. In an exciting working environment with short decision-making paths, you will be part of a friendly and highly motivated team. We are happy to support you in shaping your professional goals with individual development measures. A permanent, financially secure and long-term position Regular internal and external training Flexible working hours and a home office arrangement Ultra-modern office space based on the "New Work" concept and chill-out & creative areas A monthly credit card topped up with €25 for shopping and purchases An attractive company pension allowance including individual advice from an external service provider A Germany ticket and JobRad offers for a comfortable ride to work Flat hierarchies and open communication A team kitchen and a canteen Regular team events 30 days vacation (if desired, you can choose between 25 and 35 vacation days) + 4 custom days Fresh fruit every week as well as coffee, tea and water as much as you like Interested? Then we look forward to receiving your detailed application, including your salary expectations and earliest possible starting date. NetCologne IT Services GmbH Human Resources Department | Elisa Zube & Michèle Polcyn Adolf-Grimme-Allee 3 | 50829 Cologne About us We, NetCologne IT Services, are a subsidiary of the regional telecommunications provider NetCologne. As a reliable strategic partner from Cologne, we provide companies and schools with innovative ICT technologies and offer them advanced solutions for their digitalization. From IT strategy consulting to the development, service and support of complex IT infrastructures, we offer everything from a single source. We are also responsible for taking over our customers' IT operations in accordance with the ITIL framework - through our Cologne service desk or on site. From our modern, certified data center in Cologne, we offer innovative managed services, including individually tailored cloud computing solutions. With our education services, we turn school IT into enterprise IT. From IT infrastructure to cloud services, identity management, hardware and software through to IT support, administration and training. With us, teachers and students get everything they need for the modern classroom and thus have digitalization fully under control.