Senior Systems Administrator — Secure IT & Infrastructure

PROMISE SERVICES PTY LTD

Sydney

On-site

AUD 80,000 - 100,000

Full time

3 days ago

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Job summary

Iron Mountain is seeking a dedicated Systems Administrator to install, configure, and maintain its IT infrastructure at Granville NSW 2142. The role covers system monitoring, backups, security, and disaster recovery within a professional IT environment.

The successful candidate will work with IT teams, security personnel and external providers to ensure reliable operations, with a focus on Windows/Linux systems, VMware, AD/GPOs, and robust data sanitisation practices.

Qualifications

Bachelor's degree in Information Technology, Computer Science, Information Systems or a related discipline, or equivalent relevant qualifications and experience.
Experience in systems administration, server management or IT infrastructure support.
Knowledge of Windows Server 2016/2019, Windows/Linux operating systems, VMware, Active Directory and GPOs.
Experience with automated OS imaging, endpoint deployment, patch management and user access administration.
Understanding of NIST SP 800-88, Blancco, Teraware or comparable secure data sanitisation platforms.
Knowledge of TCP/IP, VLANs, LAN/WAN, switches, routers and Zoom VoIP or similar communication systems.
Experience with Microsoft Access, SQL Server, MINDER or similar operational databases, including SQL queries, backups, API integrations and SSMA migrations.
Experience with system security, backup and recovery, disaster recovery planning and infrastructure troubleshooting.
Familiarity with JIRA, Tier 2/3 incident resolution, SOP documentation and QR-based IT asset tracking.
Strong analytical, problem-solving, technical documentation and communication skills.

Responsibilities

Installing, configuring, administering and maintaining computer systems, servers, operating systems and associated IT infrastructure.
Monitoring system performance, undertaking preventive maintenance, identifying technical issues and recommending infrastructure improvements.
Establishing and maintaining system backups, recovery procedures, security controls and disaster recovery arrangements.
Developing and maintaining systems administration policies, technical documentation, operational procedures and system logs.
Testing software updates, system upgrades and configurations, including debugging, fault tracking and resolving identified technical problems.
Liaising with technology vendors, security suppliers and external IT service providers regarding system requirements, technical support and service performance.
Troubleshooting server-related hardware and software malfunctions affecting workstations, operating systems and communication infrastructure.
Ensuring effective integration of servers, workstations and network components while assessing future infrastructure and capacity requirements.
Deploying standardised Windows/Linux operating system images, including automated OS imaging, endpoint configuration, software deployment and security patching.
Administering Active Directory (AD), Group Policy Objects (GPOs), user accounts, access permissions and authentication controls.
Managing NIST SP 800-88 compliant media sanitisation processes using Blancco and Teraware, including verification of cryptographic erasure logs and maintenance of compliance records.
Supporting Windows Server 2016/2019 and VMware environments, including server configuration, virtualisation and system maintenance.
Troubleshooting LAN/WAN connectivity, TCP/IP, VLANs, switches, routers and Zoom VoIP integrations.
Maintaining the operational MINDER database system, including Microsoft Access/SQL Server backend administration, SQL query performance, backups, API integrations and SSMA data migrations.
Resolving Tier 2/3 technical incidents through JIRA, conducting root-cause analysis and maintaining Standard Operating Procedures (SOPs).
Managing QR-based IT asset lifecycle tracking, including asset deployment, maintenance, secure sanitisation and disposal documentation.
Ensuring compliance with organisational IT security, privacy, data protection and operational requirements.