Senior Infrastructure Tools Specialist At Optus, we don't sit back and let the future happen to us – we're out there making it.
By expanding into new technology and relentlessly improving every day, we're creating a better tomorrow for all Australians.We believe in the strength of a vibrant, diverse and inclusive workforce where the backgrounds, perspectives and life experiences of our people help us innovate and create strong connections with our customers.As a Senior Infrastructure Tools Specialist based out of either Sydney or Canberra, you'll play a key role in delivering managed services and technical support across our government clients' complex technology environments.
This includes supporting network automation and monitoring platforms, ensuring high availability, and working collaboratively with internal teams and vendors.
Your work will directly contribute to the stability, security, and performance of mission-critical systems.This role leads out ITIL practices and requires technical in depth knowledge and experience with Linux, AD/DNS/DHCP, Splunk, SDA, DNAC – Catalyst Centre as well as expert level capability and experience with multiple monitoring and tooling platforms like Stat seeker, NetScout, Cisco ISE, TACACS, WINNER & Infoblox
Your Day-to-Day Monitor, maintain and support our clients' critical network and security toolsets and platforms.
Provide triage, incident management and access control within an ITIL-based environment.
Support change control, release management and process improvement
Collaborate with internal teams and external vendors to ensure service delivery outcomes.
Act as an escalation point for more complex incidents or troubleshooting from other support and project teams
Support security engineering activities including vulnerability assessments and SIEM platforms (e.g. Splunk)
Maintain technical documentation to a high standard reflecting accurate and up to date details about monitoring and tooling platforms
Conduct auditing and technical uplift tasks to ensure compliance with all relevant standards and client requirements
Undertake pro-active maintenance activity to ensure vulnerability remediation and version control for all supported systems
Complete project tasks requiring input, integration or specialisation with Tools and Monitoring systems
Participate in after-hours work for planned changes, and on-call/call-out roster.
What We're Looking For Expertise in systems/network administration (Linux, AD, DNS, DHCP) Networking knowledge with CCNA certification or above
Experience with advanced routing technologies SDA, DNAC – Catalyst Centre as well as
Expert level capability and experience with multiple monitoring and tooling platforms like Stat seeker, NetScout, Cisco ISE, TACACS, WINNER & Infoblox
Strong working knowledge of security operations and tools (e.g. Splunk, SIEM, vulnerability management)
Problem-solving mindset and ability to work calmly under pressure
Strong communication skills and ability to collaborate across technical and non-technical teams
A proven capability for learning and a willingness to contribute to continuous service improvement
Australian Citizenship with Baseline or NV1 security clearance What's in it for you?
Standard business hours (Mon–Fri, 38-hour week) with a hybrid arrangement: 3 days in office, 2 from home.
Accessible employer with wheelchair access
Inclusive paid parental leave, up to 16 weeks for the primary care giver
All Optus employees have access to resources, webinars and support via the 'Parents at Work portal'
25% monthly service discount and $80 monthly bill rebate plus additional benefits to over retailers Australia-wide
Connect at work through our employee-led volunteer groups: Culture Connect, Elevate Women, Disability Network, Express Yourself (LGBTQIA+), United Veterans, Yarn Network, Wellbeing Network and Young Professionals
Vibrant campus life, variety of facilities including restaurants, cafes, gymnasium, GP, and post office
Free Optus bus from Macquarie University Metro Station (every 6–8 minutes); morning and afternoon