Cyber Security Senior Technical Specialist

Why Optus?

We are a business fuelled by optimism, unwavering customer focus and a team of amazing people.

And that’s where we come in…. “the amazing people” part!

We don’t sit back and wait for the future to happen, we are out there crafting our own path through new technology, innovation, and investment. We are truly a challenger brand, with challenger spirit.

The Senior Technical Specialist (STS) plays a pivotal role in delivering industry-leading security management, monitoring, administration, and support services to Optus Enterprise and its clients. With expertise across multiple security domains and potential project delivery experience, the STS collaborates with internal and external business partners to provide tailored security solutions and strategic insights for key decisions.

Positioned within the Cyber Defence Operations group, the role supports a diverse range of Australian clients, managing security services such as IAM, web security, and network security, including infrastructure located overseas. The STS also ensures flawless managed infrastructure support and compliance with vendor and third-party maintenance agreements.

Your day to day will consist of...

• Coordinate daily operations using platforms like Splunk, Devo, Zscaler (ZIA & ZPA), Cisco FTD, Tenable, Palo Alto, and others to ensure effective security measures.

• Conduct compliance scanning with Tenable, manage risks, and collaborate on remediation plans with system owners.
• Review, analyze, and build customised reports and dashboards to monitor security configurations and guide decision-making.
• Facilitate seamless collaboration between customers and internal teams, ensuring alignment and operational success.
• Develop security hardening specifications, create user documentation, and manage change processes.
• Participate in threat risk assessments, manage incidents, and implement proactive measures to prevent issues.
• Identify improvement opportunities, improve processes, and disseminate advisories on emerging threats to maintain robust security.

What makes you perfect for the role?

• Over 5 years of extensive experience in security operations, specializing in SIEM, firewalls, IPS, web security proxies, and related technologies.
• Proficient in developing security use cases, dashboards, and reports, with strong data analysis skills to interpret and derive actionable insights.
• Advanced user-level experience with IT Service Management tools like ServiceNow for managing security operations.
• Experienced in supporting client and external audits with a detailed understanding of security incident frameworks.
• Skilled in crafting and refining procedures, work instructions, and other process documentation.
• Superb communication, analytical, and interpersonal skills to manage outcomes and team contributions.
• Proactive, determined, and committed to delivering impactful contributions to security operations and organizational success.
• Certifications in Zscaler and Cisco firewalls are highly desirable.

Optus is a place where we let you do you. We offer a range of benefits including:

• 3 days in the office, 2 days remote – with flexible hours to suit!
• Inclusive paid parental leave, up to 14 weeks for the primary care giver
• All Optus employees have access to resources, webinars and support via the ‘Parents at Work portal’
• Own your own growth by accessing an extensive online and facilitator led learning catalogue – even earn a MBA micro-credential via OptusU (University)
• Connect at work through one of our employee-led volunteer groups: Culture Connect, Elevate Women, Disability Network, Express Yourself (LGBTQIA+), United Veterans and Yarn Network
• 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!

Curious about our culture? Go behind the scenes with our people by searching #OptusLife on LinkedIn!

At Optus, we are strengthened by others and that means valuing diversity and saying ‘yes’ to embracing individual differences. We are committed to ensuring that our application process provides an equal employment opportunity to all job seekers, including individuals from diverse gender, cultural and linguistic backgrounds, individuals with a disability, individuals identifying as being part of the LGBTQIA+ community, individuals who may have served in the armed forces or who identify as Aboriginal and/or Torres Strait Islander. If you require any adjustments or accessibility support to participate fairly and equitably in the recruitment process, please email AccessibleRecruitment@optus.com.au or call 1800 309 170 and we will be in touch.

For more information on Diversity, Inclusion & Belonging at Optus, please visit https://www.optus.com.au/about/inclusion-diversity.

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