Senior UNIX/Linux Infrastructure Administrator

Required skills: Unix, Linux / Unix, Bash Unleash the Power of Infrastructure Excellence - Drive Resilience, Security, and Automation! Krakow-based opportunity with hybrid work model. As a Senior UNIX/Linux Infrastructure Administrator , you will be working for our client, a leading financial services organization committed to delivering reliable and secure IT solutions. You will play a vital role in maintaining operational stability, optimizing infrastructure performance, and enabling continuous innovation to support critical enterprise services. Your main responsibilities: Ensure operational stability, integrity, and availability of UNIX/Linux infrastructure supporting business-critical applications Implement and maintain automation scripts and tools to enhance system performance and resilience Troubleshoot and resolve complex incidents across OS, network, and application layers promptly Support infrastructure changes, patches, and security enhancements aligning with best practices Drive system monitoring, log analysis, and performance troubleshooting to optimize operational efficiency Manage high-availability environments, ensuring minimum downtime and rapid recovery Handle on-call support, incident management, and change assessment within SLA parameters You're ideal for this role if you have: Minimum 5 years of experience in UNIX/Linux administration, with strong knowledge of RHEL 6, 7, 8, and 9 Proven expertise in shell scripting (Bash) for automation and operational support Solid understanding of networking fundamentals: TCP/IP, DNS, SSH, firewalls Experience with patching, package management (YUM/DNF, RPM), and vulnerability remediation Good knowledge of server hardening, security controls, and system monitoring tools Ability to troubleshoot across OS, storage, network, and application layers Experience managing high-availability production environments Strong command of English, both written and spoken It is a strong plus if you have: Knowledge of automation and configuration-management tools such as Ansible Familiarity with collaboration tools like Jira, Confluence, ServiceNow Knowledge of German language (spoken) Language Required for the role: Fluent English Eligibility to work in Europe: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.