LinuxUbuntu L3 System Administrator Engineer

Position Description:

Job Title
Linux/Ubuntu L3 System Administrator / Engineer

Role Overview
The L3 Linux/Ubuntu Administrator is responsible for managing and maintaining missioncritical Linux infrastructure. This includes advanced troubleshooting performance tuning automation and ensuring system security and availability. The role requires deep expertise in Linux (especially Ubuntu) and the ability to resolve complex issues independently.

Key Responsibilities
- Manage and maintain Linux server infrastructure (Ubuntu and other distributions).
- Ensure system performance availability and security across production and nonproduction environments.
- Provide advanced troubleshooting and resolve complex server network and application issues.
- Perform kernel upgrades OS patching package management and system hardening.
- Implement system enhancements and optimizations to improve efficiency.
- Automate repetitive tasks using Bash Python or Ansible.
- Configure and manage LVM RAID iSCSI and networking concepts.
- Monitor system performance using enterprise tools like Nagios Zabbix or Prometheus.
- Conduct root cause analysis for critical incidents and lead resolution efforts.
- Collaborate with crossfunctional IT teams to ensure seamless integration of Linux systems.
- Maintain documentation for system configurations procedures and troubleshooting guides.

Required Skills & Experience
- 712 years of experience in Linux system administration (Ubuntu Red Hat CentOS Oracle Linux).
- Strong knowledge of Ubuntu server management and enterprise Linux environments.
- Expertise in performance tuning security hardening and troubleshooting.
- Experience with virtualization (KVM VMware) containers (Docker Kubernetes).
- Familiarity with cloud platforms (AWS Azure GCP) for Linux workloads.
- Proficiency in scripting and automation (Bash Python Ansible).
- Solid understanding of networking protocols firewalls and load balancers.
- Ability to work independently and lead critical incident resolution.

Preferred Qualifications
- Certifications: RHCE LFCS LPIC3 Ubuntu Professional.
- Experience with CI/CD pipelines and DevOps practices.
- Exposure to configuration management tools (Puppet Chef SaltStack).

Skills:

• Incident Management
• Linux
• Ubuntu

What you can expect from us:

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Youll shape your career by joining a company built to grow and last. Youll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

Come join our teamone of the largest IT and business consulting services firms in the world.