This company is looking for an experienced Senior Linux System Administrator to join their team. This role is essential in maintaining, optimizing, and securing our Linux-based infrastructure. The ideal candidate will have extensive expertise in managing core Linux services, excellent problem-solving abilities, and a proactive approach to system administration.

This position offers the chance to work with cutting-edge technologies, contribute to impactful projects, and collaborate with a talented and supportive team.

This position will remain 100% remote.

What You Will Be Doing

• Manage, monitor, and maintain Linux servers to ensure optimal performance and uptime.
• Configure, troubleshoot, and optimize core Linux services, including DNS, DHCP, LDAP, NTP, and SMTP.
• Design and implement scalable and robust system architectures.
• Develop and enforce security best practices, including system hardening and patch management.
• Automate routine administrative tasks using scripting languages such as Bash, Python, or Ansible.
• Support backup and disaster recovery strategies to ensure data integrity and availability.
• Lead system upgrades, migrations, and performance optimization efforts.
• Collaborate with developers, network engineers, and cross-functional teams to support infrastructure needs.
• Mentor junior team members and share technical knowledge.
• Maintain comprehensive documentation of system configurations, processes, and procedures.
  
  

Applicants must be currently authorized to work in the United States on a full-time basis now and in the future.

A Senior Linux System Administrator is responsible for managing, maintaining, and supporting the Linux-based systems in an organization. They typically handle the following tasks:

Key Responsibilities:

1. System Installation & Configuration:

   • Install and configure Linux servers (both physical and virtual).
   • Set up and maintain Linux operating systems, software, and related tools.

2. System Monitoring & Performance Tuning:

   • Regularly monitor system performance, including memory usage, CPU utilization, and disk space.
   • Troubleshoot performance bottlenecks and optimize system performance.

3. Security & Compliance:

   • Implement security patches and system updates.
   • Configure and maintain firewalls, SSH keys, and other security tools.
   • Set up security protocols, such as SELinux or AppArmor.
   • Ensure compliance with internal and external security policies and standards.

4. Backup & Disaster Recovery:

   • Set up and maintain backup systems.
   • Plan and execute disaster recovery procedures to ensure data integrity and availability.

5. Automation & Scripting:

   • Develop and maintain automation scripts using tools like Bash, Python, or Ansible.
   • Use configuration management tools (e.g., Puppet, Chef, Ansible) to automate system tasks.

6. Network & Storage Management:

   • Configure and maintain network services (DNS, DHCP, NFS, etc.).
   • Manage storage solutions like RAID, LVM, NFS, and SAN configurations.

7. Troubleshooting & Support:

   • Resolve system issues, perform root cause analysis, and ensure minimal downtime.
   • Provide technical support to other teams, developers, and end users.

8. System Updates & Patching:

   • Regularly update Linux distributions (Debian, CentOS, Red Hat, Ubuntu, etc.) and ensure timely patches.

9. Collaboration with Development Teams:

   • Work with developers to optimize deployment processes and CI/CD pipelines.
   • Provide guidance on system architecture and integration.

10. Documentation & Reporting:

    • Maintain system documentation for configurations, procedures, and troubleshooting steps.
    • Write reports on system status, performance metrics, and security compliance.

Skills & Expertise:

• Strong knowledge of Linux distributions (e.g., CentOS, RHEL, Ubuntu, Debian).
• Proficiency in shell scripting (e.g., Bash) and Python.
• Familiarity with cloud platforms (AWS, Azure, GCP).
• Expertise in virtualization technologies (e.g., VMware, KVM, Docker).
• Experience with system monitoring tools (e.g., Nagios, Zabbix, Prometheus).
• Strong understanding of network protocols (TCP/IP, HTTP, DNS, etc.).
• Ability to manage databases (e.g., MySQL, PostgreSQL).
• Familiarity with containerization and orchestration tools (e.g., Docker, Kubernetes).
• Experience in high availability (HA) and load balancing.

A Senior Linux System Administrator should also have excellent problem-solving abilities, communication skills, and the ability to handle multiple projects or tasks simultaneously. They often mentor junior administrators and contribute to improving IT processes and infrastructure.