Senior Administrator Unix

Technologies we use

About the project

Your responsibilities

• Configure, deliver and support Linux (RHEL) and Solaris-based environments in a DevOps model.
• Work collaboratively with application teams and DevOps pods to integrate centrally provided infrastructure services.
• Support both production and non-production environments, improve SLAs, and ensure operational reliability.
• Automate daily operations using scripting languages (Shell / Perl / Python).
• Advise on Unix/Linux design and implementation best practices across project lifecycle stages.
• Review capacity and performance against SLAs, and implement changes where needed.
• Assess and implement changes based on change requests; translate business requirements into technical specifications.
• Troubleshoot incidents, perform root cause analysis, and ensure permanent corrective actions.
• Cooperate with infrastructure, application, support, and engineering teams to provide expert guidance.

Our requirements

• 6–10 years of hands-on experience in Linux server administration (RHEL); SLES and Solaris (x86/SPARC) exposure preferred.
• Industry-recognised UNIX certifications.
• Strong Linux administration and architecture experience, including volume managers, multipathing, kernel tuning.
• Advanced scripting and automation skills (Shell, Perl, Python).
• Familiarity with virtualisation platforms: VMware, Citrix, Hyper V.
• Storage systems experience (NAS and EMC SAN — standalone and clustered with replication).
• Solid networking knowledge (TCP/UDP, LAN/WAN, F5, firewalls, Cisco).
• Experience in major enterprise or regulated environments (ideally Financial Services).
• Knowledge of DevOps tools and configuration management (Ansible, Puppet, Chef).
• Veritas Volume Manager / Cluster Server experience — a plus.
• Understanding of ITIL concepts and service operations.
• Self-sufficient, organised, proactive, and able to work effectively under pressure.

What we offer

• Hybrid work setup – 6x/month from the office in Kraków
• Collaborative team culture – work alongside experienced professionals eager to share knowledge
• Continuous development – access to training platforms and growth opportunities
• Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more
• High quality equipment – laptop and essential software provided

Benefits