Linux System Infrastructure Specialist
22 hours ago
As a highly skilled and experienced system administrator, we are seeking an individual to join our operations team at ServerHub. In this role, you will be responsible for ensuring the reliability, scalability, and security of our hosting platforms.
Key Responsibilities:- 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.
- 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).
- Develop and maintain automation scripts (Bash, Python, Perl) for server provisioning and configuration management; utilize Ansible, Terraform, or similar tools for automating infrastructure deployments.
- Deploy and manage KVM, OpenStack, VMware, or containerized environments (Docker, Kubernetes); support cloud-based hosting solutions (AWS, Google Cloud, Azure).
- Implement security best practices, including firewall rules, SELinux/AppArmor, IDS/IPS; perform vulnerability assessments and patch management to secure customer environments.
- Set up and manage monitoring tools like Prometheus, Grafana, Zabbix, Nagios; participate in 24/7 on-call rotation for urgent system issues.
- 11+ years of hands-on Linux system administration experience in a web hosting or cloud environment.
- 7+ years of experience in a Senior position or Level 3 Engineer role.
- Must be a Libvirt expert with a minimum of 7+ yrs of experience.
- 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.
- Good English communication skills.
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