We are seeking a skilled and proactive Linux System Administrator to support and maintain our infrastructure, ensuring system availability, performance, and security across our Linux-based environments. You will work closely with operations, DevOps, and support teams to deliver stable and scalable systems.
Responsibilities
Install, configure, and maintain Linux servers and associated services (e.g., networking, storage, monitoring); Perform routine system tasks: patching, upgrades, backups, and n + 1 redundancy planning; Monitor system performance, troubleshoot issues, respond to alerts and incidents; Ensure system security: user access, hardening, intrusion detection, firewall/routing configuration; Maintain documentation of configuration, process flows, and incident resolution; Collaborate with DevOps/automation teams to implement IaC, scripting, and CI/CD deployment of infrastructure; Participate in on-call rotations for critical system coverage and recovery eventsRequirements
Bachelor's degree in Computer Science, Information Technology, or related field; 3-5+ years of experience administering Linux servers in production environments; Strong command of Linux OS internals, file systems (ext4, XFS), process scheduling, memory/cache behaviour; Proficiency with shell scripting (Bash, Perl, Python) and automation frameworks; Experience with system monitoring tools (Prometheus, Nagios, Grafana) and logging stacks (ELK, Fluentd); Knowledge of virtualization/containerization (KVM, VMware, Docker, Kubernetes) and cloud environments; Experience with network services: DNS, DHCP, NFS, Samba, mail, HTTP proxiesNice to have
Certifications such as RHCSA, RHCE, LFCS or equivalent; Experience with public cloud platforms (AWS, Azure, GCP) and hybrid architectures; Hands-on with automation/configuration tools (Ansible, Puppet, Chef, Terraform); Familiarity with database administration (PostgreSQL, MySQL) or middleware in a Linux stackHow to apply
Apply online: https://www.jobs.pl/en/oferta/102113753/aplikuj
JOBS.pl · https://www.jobs.pl/en/linux-system-administrator-oferta-102113753







