System Administrator / DevOps (hosting, Linux, high-load)

🔧 Vacancy:

System Administrator / DevOps (hosting, Linux, high-load)

Format: project work → long-term cooperation

Employment: remote

Payment: negotiable (fixed for deployment + support / bonuses)

🎯 Project Goal

Build a commercial hosting infrastructure designed for 500+ websites, where:

• one problematic site does not affect the others
• resources are predictably limited
• the system is stable 24/7
• scaling does not turn into chaos

The candidate must understand that this involves:

• site isolation (CPU / RAM / PHP processes)
• PHP-FPM control
• disk subsystem with high IOPS (NVMe)
• predictable operation of MySQL/MariaDB
• protection against "noisy" clients
• monitoring and backups
• absence of manual "firefighting"

🔨 Tasks

• Deploy Linux server(s) for hosting
• Set up virtualization (Proxmox / KVM — to be discussed)
• Install and configure the panel:
  • DirectAdmin / ISPmanager / Plesk (by agreement)
• Set up the web stack:
  • Nginx / Apache
  • PHP-FPM (with limits)
  • MariaDB / MySQL
• Implement site isolation:
  • CloudLinux or
  • cgroups / systemd / containers
  • 
    
• Set up security:
  • firewall
  • Fail2Ban / ModSecurity or analogs
• 
  
• Set up backups (not on the same disk)
• Set up monitoring (CPU / RAM / disk / I/O wait)
• Prepare the infrastructure for growth (500 → 1000 websites)
• Document the architecture and key settings

✅ Mandatory Requirements

• Real experience in administering Linux servers
• Understanding how shared hosting works
• Experience with:
  • PHP-FPM
  • MySQL/MariaDB
  • WordPress and other CMS
• 
  
• Understanding bottlenecks:
  • CPU vs IOPS vs RAM vs network
• 
  
• Ability to limit resources rather than "adding hardware"
• Responsibility and independence

⭐ Will be a big plus

• Experience launching hosting or VPS provider
• Experience with Proxmox / LXC
• Experience optimizing MySQL for high-load
• Experience working with NVMe / RAID / ZFS
• Automation (bash / ansible)
• Understanding scaling without downtime

💰 Payment

• fixed for deployment
• become a partner of the hosting with a 25% stake
  • payment for support
  • bonuses for optimization and growth

The goal is long-term cooperation