Linux System Administrator
- Guelph, ON, Canada
Salary Range CAD $75000-$100,000 · Full-time
Applications open in a new tab.
Job details
- Pay
- Salary Range CAD $75000-$100,000
- Job type
- Full-time
- Apply by
- Posting language
- English
- Posted
Original job description
Job description
The Linux System Administrator is responsible for day-to-day administration, maintenance, and support of Linux-based systems. This role focuses on system stability, patching, monitoring, and incident resolution while following established standards and procedures.
- Install, configure, and maintain Linux servers (RHEL/Ubuntu/Rocky/CentOS), both physical and virtual.
- Manage core services: SSH, DNS, DHCP, NTP, LDAP/SSSD, postfix, NFS/SMB, systemd, and cron management.
- Apply patches and kernel updates; maintain package repos (yum/dnf/apt).
- Monitor system health and performance (top, iostat, sar, vmstat, netstat; or via Prometheus/Zabbix).
- Implement backup/restore routines (e.g., Veeam/Bacula/NetBackup); test recoveries.
- Manage storage (LVM, mdadm RAID, multipath, iSCSI/FC) and filesystems (ext4/xfs/btrfs).
- Harden hosts per baseline (CIS/STIG), firewall rules (iptables/nftables/firewalld), SELinux/AppArmor.
- Write basic automation/scripts (Shell script; optionally Python, Ansible playbook) for routine tasks.
- Respond to incidents; perform root cause analysis; document runbooks and SOPs.
- Support users/dev teams with environments, permissions, and troubleshooting.
Required Skills
- Solid understanding of Linux OS fundamentals.
- Experience with systemd, networking, storage, and filesystems.
- Package management, log analysis (journalctl, syslog).
- Storage and filesystem management; backup fundamentals.
- Familiarity with monitoring tools (i.e. Nagios)
- Basic virtualization (VMware/KVM/Nutanix) and/or container basics (Docker).
- Basic scripting skills (Shell script); version control (Git).
- Understanding of security best practices: SSH keys, PAM, auditing (auditd).
- Ability to follow procedures and work under supervision.
Educational background and Working Experience
- Bachelor's degree in Computer Science, IT, or related field (or equivalent experience).
- 3-5 years administering Linux(Rocky/RHEL/Ubuntu) in production.
- Certifications (nice-to-have): Red Hat RHCSA, CompTIA Linux+, LPIC-1.
Salary Range CAD $75000-$100,000
More about this job
Responsibilities
Administer, maintain, patch, monitor, and secure Linux servers and their core services, storage, and filesystems. Resolve incidents, support users and development teams, automate routine tasks, test backups and recoveries, and document procedures and root causes.
Requirements
Requires solid Linux fundamentals and experience administering Rocky Linux, RHEL, or Ubuntu systems in production, with knowledge of systemd, networking, storage, filesystems, package management, logs, backups, monitoring, and security practices. A bachelor's degree in computer science, IT, or a related field - or equivalent experience - and 3–5 years of Linux administration experience are specified; relevant certifications are a plus.
Skills
- Linux System Administration
- Linux Server Installation And Maintenance
- Systemd
- Networking
- Storage And Filesystem Management
- Package Management
- Log Analysis
- Backup And Recovery
- System Monitoring
- Virtualization
- Docker
- Shell Scripting
- Git
- Linux Security Hardening
- Incident Response And Root Cause Analysis
- Ansible
Visa sponsorship
Not detected in the job text
Categories
- Technology
- Security & Safety
- Manufacturing
Keywords
- Linux
- RHEL
- Rocky Linux
- Ubuntu
- CentOS
- SSH
- DNS
- DHCP
- NTP
- LDAP
- SSSD
- Postfix
- NFS
- SMB
- Systemd
- Yum
- DNF
- APT
- Prometheus
- Zabbix
- Nagios
- Veeam
- Bacula
- NetBackup
- LVM
- RAID
- iSCSI
- SELinux
- AppArmor
- RHCSA