Senior Linux System Engineer (L3)

ServerHub; United States; Remote; USD 120,000 - 160,000; Full time

Job summary

ServerHub is seeking a skilled L3 Linux System Engineer to ensure the optimization, security, and uptime of our hosting platforms. You will troubleshoot complex issues, manage Linux environments, and automate deployments. This is an opportunity to work in a dynamic cloud hosting environment with career growth and fully remote setup.

Benefits

Career growth opportunities

Paid leaves

Fully remote setup

Innovative environment

Challenging projects

Qualifications

• 7+ years of hands-on Linux system administration experience.
• Expert knowledge of hosting technologies (cPanel, Plesk).
• Experience with automation tools (Ansible, Puppet).

Responsibilities

• Act as final escalation point for complex server issues.
• Manage Linux-based hosting environments.
• Develop automation scripts for server provisioning.

Skills

Linux System Administration

Troubleshooting

Scripting (Bash, Python, Perl)

Networking (TCP/IP, DNS)

Configuration Management

Education

RHCE or similar certification

AWS Certified SysOps Administrator

Kubernetes Certification (CKA)

Job description

About ServerHub:

At ServerHub, we power businesses with high-performance cloud and hosting solutions. Our mission is to provide customers with reliable, scalable, and secure infrastructure worldwide. As an L3 Linux System Engineer, you will be at the forefront of our operations, ensuring our hosting platforms are optimized, secure, and always online.

Job Responsibilities:

Escalation & Troubleshooting:

• Act as the final escalation point (L3) for complex server, hosting, and network-related issues.

• Diagnose and resolve critical system failures, network outages, and performance issues.

Linux Server Administration:

• Manage, optimize, and secure Linux-based hosting environments (CentOS, Ubuntu, RHEL).

• Administer and fine-tune web servers (Apache, Nginx, LiteSpeed), databases (MySQL, PostgreSQL), and caching layers (Redis, Memcached).

• Build and deploy servers from the ground up, ensuring optimal configurations for performance and security.

Automation & DevOps:

• Develop and maintain automation scripts (Bash, Python, Perl) for server provisioning and configuration management.

• Utilize Ansible, Terraform, or similar tools for automating infrastructure deployments.

Cloud & Virtualization:

• Deploy and manage KVM, OpenStack, VMware, or containerized environments (Docker, Kubernetes).

• Support cloud-based hosting solutions (AWS, Google Cloud, Azure).

Security & Compliance:

• Implement security best practices, including firewall rules, SELinux/AppArmor, IDS/IPS.

• Perform vulnerability assessments and patch management to secure customer environments.

Monitoring & Incident Response:

• Set up and manage monitoring tools like Prometheus, Grafana, Zabbix, Nagios.

• Participate in 24/7 on-call rotation for urgent system issues.

Collaboration & Mentoring:

• Work closely with NOC, DevOps, and Engineering teams to ensure smooth operations.

• Provide guidance and mentorship to L1 & L2 support engineers.

Requirements:
7+ years of hands-on Linux system administration experience in a web hosting or cloud environment.
Expert knowledge of web hosting technologies (cPanel, Plesk, WHM, LAMP/LEMP stacks).
Strong scripting ability in Perl, Bash, and Python.
Experience with configuration management tools (Ansible, Puppet, Chef).
Networking expertise – understanding of TCP/IP, DNS, VPN, Firewalls, Load Balancing.
Familiarity with RAID, SAN, NAS, and distributed storage systems.
Experience working in a 24/7 production environment with on-call duties.
Ability to build and configure servers from the ground up.
Certifications such as RHCE, AWS Certified SysOps Administrator, or Kubernetes (CKA) are a plus.

What ServerHub Offers:
A fast-paced, innovative environment in a growing cloud hosting company.
Cutting-edge technologies and challenging projects.
Career growth opportunities and professional development.
Paid leaves and fully remote set-up

Join ServerHub and be part of a team that keeps the internet running! Apply today!