Senior IT Administrator - Infrastructure & DevOps (f/m/d)

Job description

At Oncare , we don’t just develop software — we are building an international health ecosystem that redefines care. Our platform myoncare connects patients, clinics, doctors, and partners within one intelligent system, enabling continuous, secure, and personalized healthcare experiences. As a Senior IT Administrator, you will play a key role in maintaining and improving the infrastructure behind our platform and internal operations. From cloud systems and automation to security and reliability, your work will help ensure stable, scalable, and efficient IT environments that support our teams and users every day. Tasks Infrastructure & Operations Administer and maintain Linux-based systems (Ubuntu) Manage cloud-based servers and infrastructure Monitor system performance, availability, and capacity Maintain backup and business continuity processes Ensure system reliability, scalability, and operational efficiency Maintain and support web server infrastructure (NGINX) Security & Compliance Support network setup, security, and access control Analyze and evaluate information security incidents Collect and document incident evidence for risk evaluation Implement solutions to prevent and resolve security incidents Ensure confidentiality and protection of company information Automation & DevOps Support CI/CD processes and related tools Automate operational tasks using scripting and Ansible Maintain Docker-based environments Work with monitoring and logging solutions such as Grafana, Prometheus, ELK, Splunk, or similar tools User & Internal IT Support Administer and support Microsoft 365 environments with focus on SharePoint Provide technical support for internal users and departments Support macOS / Apple devices and related administration tasks Document IT systems, tools, and operational procedures Requirements Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field 4+ years of professional experience in IT administration or infrastructure operations Strong Linux administration skills (Ubuntu) Experience with Microsoft 365 and SharePoint Experience with Docker, Git, and shell scripting Familiarity with networking, access control, and IT security principles Experience with monitoring and logging tools Strong organizational and problem-solving skills Reliable team player with a proactive and independent working style Fluent in English Nice to Have Experience with Ansible Experience with NGINX Experience with Jenkins or other CI/CD tools Experience with Grafana, Prometheus, ELK, Splunk, PagerDuty, or CloudWatch Experience with Apple/macOS administration Benefits Take ownership in a meaningful role within the digital healthcare sector Make a direct impact on the reliability, scalability, and technical excellence of our platform Centrally located office with diverse lunch options nearby International team culture with colleagues from different backgrounds and countries Unlimited coffee and tea Access to various employee discounts Flat hierarchies and direct communication with decision-makers Join a team where your ideas, technical expertise, and initiative truly make a difference. We offer an environment where you can take ownership, contribute to meaningful projects, and grow together with experienced colleagues in an international setting. If you enjoy solving complex technical challenges and want to help build and improve modern IT environments, we look forward to receiving your application.