IT Systems Administrator II – Windows & Security Systems

The Hr Ally; Sydney; On-site; AUD 90,000 - 120,000; Full time

Job summary

M.C. Dean is seeking a System Administrator 2 in Sydney, Australia, to join the Security and Electronic Systems (SES) unit. The role covers monitoring and maintaining Physical Access Control, CCTV, PSIM, and integrated electronic systems for federal, local, and commercial clients.

You will triage issues, provide Tier 1/2 support, and coordinate with vendors and engineers. The position requires flexibility for night, weekend, on-call shifts and on-site customer work in Sydney.

Qualifications

• Requires system administrator experience including triage, problem resolution, and workstation deployments.
• Experience with Windows patching and vulnerability remediation.
• Understanding of Windows Active Directory hierarchy and implementation.
• Knowledge of large scale networking, VLANS and routing.
• Reliable attendance at customer site during work hours.
• Ability to work flexible shifts including nights, weekends, holidays and on-call.

Responsibilities

• Monitor, maintain, and test Physical Access Control, CCTV, PSIM, and Integrated Electronic Systems.
• Triage customer support calls, provide Tier 1 help desk support and Tier 2 escalation.
• Communicate with customers, manufacturers, vendors, and technical specialists.
• Train system users and other support personnel.
• Analyze and modify preventive maintenance checklists for system changes.
• Troubleshoot system performance issues and implement corrective actions.
• Perform preventive maintenance actions including system backups, log reviews, and integrity checks.
• Prepare detailed documentation of system performance and service records.
• Perform desktop hardware and operating system setup, imaging software loading, and antivirus updates.

Skills

Physical security systems

CCTV

PSIM

IT systems

Tier 1 support

Tier 2 escalation

Windows patching

Active Directory

Networking basics

Documentation

Education

Bachelor's Degree in IT, Risk Management or Cybersecurity

Associate's Degree in IT, Risk Management or Cybersecurity

High School Diploma

Tools

Imaging software

Antivirus software

IT service desk tooling

Job description

M.C. Dean is seeking a System Administrator 2 in Sydney, Australia, to join the Security and Electronic Systems (SES) unit. The role covers monitoring and maintaining Physical Access Control, CCTV, PSIM, and integrated electronic systems for federal, local, and commercial clients.

You will triage issues, provide Tier 1/2 support, and coordinate with vendors and engineers. The position requires flexibility for night, weekend, on-call shifts and on-site customer work in Sydney.