▷ Immediate Start Linux System Administrator

3 weeks ago

Dublin, Ireland Auxilion Ireland Ltd Full time

Linux Systems Administrator We are seeking a skilled and self-motivated Linux Systems Administrator with over 4 years of hands-on experience managing Red Hat/Fedora and Ubuntu systems in self-hosted environments. The ideal candidate will have a deep understanding of Linux system internals, automation, scripting, and containerization technologies. You will be responsible for maintaining, securing, and optimizing Linux-based systems, supporting development and production environments, and resolving complex system-related issues. You will also be responsible for actioning User based tickets on a daily basis. This is a critical role that supports the core infrastructure of our organization Role Responsibilities: Administer and support Linux servers (Red Hat/Fedora and Ubuntu) in self-hosted environments. BAU tickets- Action tickets and user requests in this space. Maintain up to date patching on the OS servers and applications Monitor and troubleshoot services and system performance using tools such as systemd, cgroups, SNMP, SMTP, and more. Create and maintain shell scripts for automation and system management using BASH. Manage SSL/TLS configurations, including the installation and renewal of SSL certificates. Deploy and manage containerized applications using Docker. Configure and optimize web servers such as Apache and Nginx. Identify, diagnose, and resolve complex system issues in a timely manner. Collaborate with other IT and development teams to ensure system reliability and scalability. Maintain documentation related to system configuration, procedures, and infrastructure Technical Competencies: Batchelors Degree in an IT Subject 4+ years of experience with Red Hat/Fedora and Ubuntu Linux systems in self-hosted environments. Strong understanding of systemd, cgroups, SNMP, SMTP, and other key Linux services. Proficiency in BASH scripting. Experience handling SSL/TLS and managing SSL certificates. Containerization experience with Docker. Experience configuring and maintaining Apache and Nginx web servers. Strong analytical and problem-solving skills. Ability to work independently with minimal supervision. Preferred Qualifications Familiarity with other scripting languages (e.g., Python, Perl). Experience with automation tools (e.g., Ansible, Puppet, or Chef). Exposure to monitoring and logging tools (e.g., Prometheus, Grafana, ELK stack). Basic networking knowledge and firewall configuration. Previous experience in a Public Sector environment, where Oracle, Windows and Linux Operating systems are used would be a distinct advantage but not essential. Skills: Linux System Red Hat Fedora

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