IT Infrastructure Systems Administrator

About the role

We are looking for an IT Infrastructure Systems Administrator to install, administer and optimise Windows and UNIX servers and related technologies. The role supports the network management system, ensures data backup and recovery, and participates in business continuity planning.

Key responsibilities

• Install, upgrade and maintain Windows/UNIX servers and associated components.
• Support and manage the network management system, including backups, restoration and performance monitoring.
• Apply vendor‑supplied patches and updates in line with IT policies.
• Document standard operating procedures and adhere to industry best practices.
• Troubleshoot and resolve low to moderate complexity issues on server platforms.
• Monitor system performance and tune for optimal operation.
• Prioritise and respond to Service Desk tickets within SLA targets.
• Assist senior team members in designing and reviewing new server, application and hardware solutions.

Required profile

• High School Diploma or GED (required) and a Bachelor’s degree or equivalent experience (required).
• At least 1 year of hands‑on experience with current Windows/UNIX technologies; up to 2 years preferred.
• Ability to work on a 24‑hour rotating on‑call schedule.
• Strong written, verbal and interpersonal communication skills.
• Proven ability to multitask and adapt to changing priorities.

Required skills

• Windows Server (2003, 2008) and UNIX.
• Citrix XenApp.
• DNS, DHCP.
• Microsoft Exchange 2010.
• MS Clustering.
• PowerShell.
• TMG (Threat Management Gateway).
• VMware ESX/ESXi, View, VMA.
• Websense.
• Microsoft Office proficiency.