System Administrator
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Monitor production infrastructure and respond to incidents in real time
Diagnose and resolve complex performance issues, including load balancing, database optimization, and system tuning
Identify and remediate security incidents such as malware, phishing, abuse, and blacklisting
Provision, configure, and decommission dedicated and cloud servers
Own backup, restore, and disaster recovery operations, and verify that they actually work
Manage patching and operating system lifecycle across the fleet
Lead complex customer migrations and performance audits
Coach and guide our L1 and L2 support teams through advanced technical cases
Work with external vendors to troubleshoot hardware and software issues
Improve monitoring, alerting, and automation so that fewer problems become incidents
Escalate platform-level issues to DevOps and coordinate the response
Contribute to internal documentation and systems standardization What You Bring
5+ years administering Linux systems running LAMP stacks (Apache or Nginx)
Hands-on experience with cPanel/WHM in a production hosting environment
Strong knowledge of DNS, IPv4/IPv6, and core web technologies
Experience with email systems (SMTP, POP, IMAP), deliverability, and reputation management
Database administration experience with MySQL or MariaDB
Comfort with Bash and the command line
Experience with backup and restore tooling, and with monitoring and alerting platforms
Working knowledge of firewalls and web application firewalls (CSF, ModSecurity, Cloudflare, or similar)
Strong written and verbal communication in English
Willingness to take part in a shared on-call rotation Nice to Have
Plesk
CloudLinux, LiteSpeed, or Imunify360
WordPress performance and security tuning at scale
Scripting in Python, PHP, or Perl
Virtualization platforms such as KVM, Proxmox, VMware, or OpenStack
Configuration management or infrastructure as code (Ansible, Terraform)
Git for configuration and change management
Containers (Docker)
Windows Server
Certifications such as LPIC, Red Hat, or cPanel
Basic written and verbal communication in French Why Join WHC?
Hybrid: ~3 days a week at our local office, the rest from home
A shared on-call rotation with a named backup each week, compensated in line with local policy
Real technical ownership and a direct line to the people making infrastructure decisions
A team that lives its values Ready to Make an Impact? Apply with your CV. If your experience lines up, someone from our People & Culture team will reach out for a first conversation. We read every application. Equal Opportunity WHC is an equal opportunity employer. We celebrate diversity and are committed to an inclusive environment for all WHCers. We welcome applications from people of all backgrounds, and we are happy to accommodate candidates with disabilities at any stage of the process. Just let us know what you need.
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