Supervisor, System Engineer - Infrastructure & Security

About the role

This role supervises the design, implementation, administration and maintenance of enterprise Windows and Linux server infrastructure within the Infrastructure and Security department. It also covers high-availability and clustering environments, server security, backups and disaster recovery, and mentoring of junior engineers.

Key responsibilities

• Manage and maintain high-availability and server clustering environments across Windows and Linux platforms.
• Administer server operating systems, including installation, configuration, patching, upgrading, hardening and performance tuning.
• Administer Active Directory, DNS, DHCP, Group Policy, Windows services and authentication infrastructure.
• Configure and troubleshoot Linux services, system resources, networking, storage, permissions and performance.
• Monitor server availability, performance, capacity and health, and perform root-cause analysis of complex issues.
• Implement server security controls, including OS hardening, patch management, vulnerability remediation and access control.
• Maintain backup, restore, business continuity and disaster recovery solutions for critical systems.
• Participate in server migration, consolidation, upgrade and data centre infrastructure projects.
• Automate repetitive tasks with PowerShell, Bash, Python or similar scripting tools.
• Work with vendors and service providers, mentor junior System Engineers and take part in on-call support, including nights, weekends and public holidays.

Required profile

• 5+ years of experience in System Engineering, System Administration or a related infrastructure role.
• Strong hands-on experience administering Windows Server and Linux Server environments (mandatory).
• VMware and virtualization experience (mandatory).
• Hands-on experience with server clustering on both Windows and Linux (mandatory).
• Preferred: Linux system administration and open source tools, ITIL Foundation knowledge, Microsoft, VMware, AWS/Azure certifications, and Service Pack and patch management experience.