Last updated: 2025-10-26

23 It Systems Administration jobs in Sydney.

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TELUS Agriculture and Consumer Goods (Australia) Pty Ltd

TELUS Agriculture and Consumer Goods is a great place to work. The diversity of the team and their unique contributions set us apart from the competition. Our …

Senior Systems Engineer

Sydney

  • Skills: Linux, UNIX, Windows, DevOps, AWS, Docker, Kubernetes, scripting, cloud environments, database
  • Level: mid
  • Type: full_time

Macquarie Technology Group

We’re proud to be Great Place to Work-Certified™️2025 for 2 years running. We have also been named a Global Winner of the 2024 Gallup Exceptional Workplace Awa…

Systems Engineer

Sydney

  • Skills: Systems Engineer, Active Directory, hybrid cloud, Microsoft stack, cybersecurity, technical leadership, IT strategy, customer-focused, mentorship, collaboration
  • Level: mid
  • Type: full_time

Armis

the cyber exposure management & security company, protects the entire attack surface and manages an organization’s cyber risk exposure in real time. Armis ensu…

Tier 2 Technical Support Engineer

Sydney

  • Skills: Technical Support, Linux, Networking, SQL, Cyber Security, Web Troubleshooting, Cloud Computing, Docker, Kubernetes, Scripting
  • Level: mid
  • Type: full_time

Statestreet

IT Security Infrastructure Operations

Sydney

  • Skills: UNIX, security engineering, scripting, PBRUN, PERL, Python, monitoring, reporting, requirements gathering, customer service
  • Level: mid
  • Type: full_time

Atos

Atos is a global leader in digital transformation with 112,000 employees and annual revenue of c. € 11 billion. European number one in cybersecurity, cloud and…

Database Administrator

Sydney

  • Skills: Database Administrator, SQL Server, SSMS, IIS, performance, security, maintenance, backup, recovery, documentation
  • Level: mid
  • Type: full_time

DP World

DP World is a logistics company that operates ports and terminals, providing services to various sectors of the global supply chain.

Specialist - Network Engineering

Sydney

  • Skills: Network Engineering, Network Security, Cisco, Citrix Netscalers, F5 Load Balancers, Fortigate, TCP/UDP, IPv4/IPv6, MPLS, BGP
  • Level: mid
  • Type: full_time

Equinix

Equinix is the world’s digital infrastructure company®, shortening the path to connectivity to enable the innovations that enrich our work, life and planet. A …

Data Center Customer Operations Engineer II

Sydney

  • Skills: network devices, customer operations, technical support, fiber optics, network performance, troubleshooting, security patches, network inventory, 24/7 shifts, equipment installation
  • Level: entry
  • Type: full_time

New Era Technology

Join New Era Technology, where People First is at the heart of everything we do. With a global team of over 4,500 professionals, we’re committed to creating a …

Network Engineer

Sydney

  • Skills: networking, IT Systems Integrator, firewall systems, network security, cloud networking, troubleshooting, network monitoring, router configuration, technical documentation, collaboration
  • Level: mid
  • Type: full_time

VGW

VGW is an interactive entertainment company, harnessing technology and creativity to deliver world-class, free-to-play games.

IT Systems Administrator

Sydney

  • Skills: systems administration, network management, SaaS platforms, network administration, firewalls, VPNs, TCP/IP, VLANs, Okta, IT security
  • Level: mid
  • Type: full_time

Fortinet

Fortinet, a cybersecurity pioneer with over two decades of excellence, focuses on safeguarding people, devices, and data everywhere.

Systems Engineer (Switching and Wifi)

Sydney

  • Skills: cybersecurity, networking, Linux, AWS, Azure, GCP, API security, troubleshooting, pre-sales, network infrastructure
  • Level: mid
  • Type: full_time

Ticketek Entertainment Group

Ticketek Entertainment Group is a global fan experience Company that tickets, promotes and delivers incredible live experiences that are impossible to forget.

System Engineer

Sydney

  • Skills: AWS, Cloud infrastructure, Automation, Incident Management, Scripting, Linux, Networking, Agile environment, CI/CD, Windows Server
  • Level: mid
  • Type: full_time

PSI

PSI is a leading Contract Research Organization (CRO) with about 30 years of experience in the pharmaceutical industry. Originated in Switzerland, PSI is a pri…

IT Infrastructure Specialist

Sydney

  • Skills: IT infrastructure, Microsoft Azure, TCP/IP, Active Directory, Linux administration, Virtualization, Networking, Cloud solutions, Server management, Technical documentation
  • Level: mid
  • Type: full_time

ServiceNow

It all started in sunny San Diego, California in 2004 when a visionary engineer, Fred Luddy, saw the potential to transform how we work. Fast forward to today …

Senior Linux Administrator

Sydney

  • Skills: Linux, AI integration, Python, MySQL, networking, automation, scalable systems, application monitoring, problem-solving, infrastructure improvement
  • Level: mid
  • Type: full_time

Cloudflare

At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites…

Technical Support Engineer

Sydney

  • Skills: technical support, network performance, security concerns, product configurations, troubleshooting, customer communication, command line tools, scripting languages, web servers, cloud platforms
  • Level: mid
  • Type: full_time

State Street

Across the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clie…

Windows File Systems Security Engineer, Officer

Sydney

  • Skills: Windows File Systems, Data Security, Varonis, NTFS security, PowerShell, Scripting languages, Permissions administration, Audit requirements, Process optimization, Risk mitigation
  • Level: mid
  • Type: full_time

Teradata

At Teradata, we believe that people thrive when empowered with better information. That’s why we built the most complete cloud analytics and data platform for …

Senior Specialist Cloud Engineer

Sydney

  • Skills: Cloud Infrastructure, AWS, Terraform, CloudFormation, Ansible, Monitoring Tools, Security Principles, Troubleshooting, Scripting, Linux Administration
  • Level: senior
  • Type: full_time

Yunex Traffic

Yunex Traffic is a global leader for intelligent traffic solutions, enabling cities and highway authorities to create a new world of mobility through digitaliz…

Infrastructure Engineer

Sydney

  • Skills: infrastructure automation, cloud technologies, system integration, ICT systems, virtualization, backup and disaster recovery, cybersecurity, networking, automation tools, traffic management
  • Level: mid
  • Type: full_time

Google

System Administrator, Edge Networking

Sydney

  • Skills: systems automation, networking, TCP/IP, Linux administration, coding, problem-solving, IP networking, virtual compute environments, telemetry, reliability
  • Level: mid
  • Type: full_time

Yunex Traffic

A global leader for intelligent traffic solutions connecting cities with smart technologies and promoting better quality of life through improved mobility.

ICT System Engineer

Sydney

  • Skills: ICT system, traffic solutions, multi-server infrastructure, virtualisation, Windows Server, Linux, SQL, Networking, Intelligent Transport System, tunnel project
  • Level: mid
  • Type: full_time

ServiceNow

It all started in sunny San Diego, California in 2004 when a visionary engineer, Fred Luddy, saw the potential to transform how we work. Fast forward to today …

Infrastructure Engineer

Sydney

  • Skills: AI integration, Linux systems, Python, C/C++, Javascript, Networking, MySQL, System monitoring, Automation, Reliability
  • Level: entry
  • Type: full_time