Systems Administrator

RASAK PTY LTD; Sydney; On-site; AUD 77,000 - 94,000; Full time

Job summary

RASAK GROUP in Sydney, NSW is seeking an experienced Systems Administrator to manage, secure and improve our ICT infrastructure, network systems and cloud environments. The successful candidate will ensure the reliability, performance and availability of our IT systems while supporting technology integration and business operations across the organisation.

Key duties include configuring Windows Server environments, administering Active Directory and Microsoft 365, managing Azure and AWS,

Qualifications

• Bachelor's degree in IT, CS, IS, or related field
• Relevant experience in systems administration and ICT infrastructure
• Strong knowledge of Windows Server, AD, and Microsoft 365 administration
• Experience with cloud platforms (Azure/AWS) and virtualization
• Experience with backups, DR, monitoring and endpoint administration

Responsibilities

• Install, configure and maintain Windows Server environments
• Manage Microsoft 365, Exchange Online, SharePoint and OneDrive
• Administer Active Directory, GPOs and user access
• Configure LAN/WAN, VPN, DNS, DHCP and TCP/IP
• Manage cloud infrastructure (Azure/AWS) and virtualization
• Monitor performance, security and availability; resolve issues
• Implement backups, DR and business continuity procedures
• Coordinate with vendors and external IT providers
• Develop and maintain technical documentation and diagrams
• Support ICT projects, migrations and new technologies

Skills

Windows Server

Active Directory

Microsoft 365 administration

Networking

Information security

Troubleshooting

Documentation

IT project support

Education

Bachelor's degree in IT or related

Tools

Azure

AWS

VMware/Hyper-V

Intune

Exchange Online

SharePoint/OneDrive

Job description

Job Type: Permanent position | Full time position

Job Description

Systems Administrator – Full-Time

• *Company:** RASAK GROUP
• *Location:** Sydney, NSW
• *Employment Type:** Full-Time, Permanent
• *Working Hours:** 38 hours per week
• *Salary:** $85,000 per annum + superannuation
• *Occupation:** Systems Administrator

About the Position

RASAK GROUP is seeking an experienced and motivated Systems Administrator to manage, maintain, secure and improve our ICT infrastructure, network systems, cloud environments and business technology platforms. The successful candidate will be responsible for ensuring the reliability, performance, security and availability of our IT systems while supporting technology integration, infrastructure development and business operations across the organisation.

Key Responsibilities

• Install, configure, administer and maintain Windows Server environments, computer systems, network infrastructure and related ICT services.
• Manage Microsoft 365, Exchange Online, SharePoint, OneDrive, Microsoft Entra ID (Azure AD) and other cloud-based business platforms.
• Administer Active Directory, Group Policies, user accounts, permissions, access controls and identity management systems.
• Configure, monitor and maintain LAN, WAN, VPN, DNS, DHCP, TCP/IP and other network services.
• Manage cloud infrastructure and services, including Microsoft Azure and AWS environments where applicable.
• Monitor system performance, availability, security and operational efficiency, identifying and resolving infrastructure issues.
• Implement and maintain system backup, disaster recovery, business continuity and data protection procedures.
• Manage virtualisation environments, including VMware, Hyper-V and virtual servers.
• Administer endpoint management, software deployment, patch management and device security using Microsoft Intune and related tools.
• Configure and maintain firewalls, network security controls, endpoint protection and secure remote access.
• Manage domain configurations, DNS records, web hosting environments, SSL certificates and related infrastructure services.
• Maintain and support network-attached storage (NAS), file servers, data synchronisation and backup systems.
• Support the configuration, integration and administration of VoIP, telephony and business communication systems.
• Investigate and resolve system failures, network connectivity problems, security vulnerabilities and infrastructure incidents.
• Perform system upgrades, maintenance, configuration changes and technical testing.
• Develop and maintain technical documentation, system configurations, infrastructure diagrams, operational procedures and disaster recovery plans.
• Coordinate with external IT vendors, cloud providers, software suppliers and technology consultants.
• Provide technical advice to management regarding ICT infrastructure improvements, system scalability, security and operational requirements.
• Assist with ICT infrastructure projects, system migrations, cloud adoption and the implementation of new business technologies.

Qualifications and Experience

• Bachelor degree or higher qualification in Information Technology, Computer Science, Information Systems, Network Engineering or a related discipline.
• Relevant professional experience in systems administration, ICT infrastructure or a closely related technical role.
• Strong knowledge of Windows Server, Active Directory, Group Policy and Microsoft 365 administration.
• Experience with network configuration, troubleshooting and system security.
• Knowledge of Microsoft Azure, cloud infrastructure and virtualisation technologies.
• Experience managing system backups, disaster recovery and data protection.
• Familiarity with IT infrastructure monitoring, patch management and endpoint administration.
• Strong analytical, technical troubleshooting and problem-solving skills.
• Ability to prepare technical documentation and maintain accurate system records.
• Strong communication, organisational and stakeholder coordination skills.

Desirable Skills and Certifications

• Microsoft Azure Administrator or related Microsoft certifications.
• Cisco Certified Network Associate (CCNA).
• ITIL Foundation certification.
• Microsoft Intune and endpoint management experience.
• AWS administration experience.
• Cybersecurity, firewall management and vulnerability management experience.
• Experience with VMware, Hyper-V, Veeam or similar technologies.
• Experience managing business communications, VoIP systems, domains and web hosting infrastructure.