27 days ago
Sydney, AustraliaSenior
Responsibilities
- Build, configure, operate, and enhance the enterprise microsegmentation platform.
- Analyse application communication and network traffic flows and implement least-privilege segmentation policies.
- Integrate segmentation telemetry with SIEM platforms and other network security tools.
- Align enterprise microsegmentation with telecommunications network segmentation and Zero Trust strategies.
- Develop segmentation architecture models, identify control gaps, and contribute technical expertise to governance forums.
- Maintain platform health, upgrades, policy enforcement, monitoring, and segmentation coverage.
- Create operational documentation, standards, runbooks, and playbooks, and support incident response through policy analysis and containment.
- Develop automation for flow mapping, policy creation, and validation.
- Build and maintain CI/CD pipelines for policy deployment and reusable security platform tooling.
Requirements
- A relevant tertiary qualification in Computer Science, IT, Network Engineering, or Cybersecurity, or equivalent practical experience.
- At least 5 years of hands-on experience in network security, workload security, or platform engineering with exposure to network segmentation.
- Hands-on experience with enterprise microsegmentation platforms including Illumio, Guardicore, Cisco Secure Workload, ColorTokens Xshield, or similar in large-scale production environments.
- Strong knowledge of network security, segmentation, Zero Trust, workload isolation, least-privilege access, and enterprise networking fundamentals.
- Experience analysing application and network traffic flows, troubleshooting policy issues, and creating technical documentation, standards, and runbooks.
- Experience with SIEM integrations, telemetry pipelines, Python or Bash scripting, and CI/CD or configuration-as-code practices.
- Exposure to Cisco TrustSec, Juniper, or Palo Alto network device segmentation technologies in telecommunications, critical infrastructure, or financial services environments.
- Strong stakeholder collaboration, cross-functional working ability, ownership, and a risk-aware approach to security engineering.
Benefits
- Competitive remuneration, an $80 monthly credit, 25% off Optus products, and retail partner discounts.
- Hybrid working with three days in the office and two days remote.
- Competitive leave policies, including additional Connected days for culture, family, health, or community.
- Carer-neutral paid parental leave of up to 16 weeks.
- Self-directed development through Optus U micro-credentials with La Trobe and Macquarie Universities.
- Employee-led inclusion networks and free 24/7 counselling and wellbeing support.
About Singtel
Singtel Group is Asia's leading communications technology group, providing a portfolio of services from next-generation communication, digital services and digital infrastructure including regional data centre arm Nxera and regional IT services arm NCS. The Group has presence in Asia, Australia and Africa and reaches over 820 million mobile customers in 20 countries. Singtel is dedicated to continuous innovation, harnessing next-generation technologies to create new and exciting customer experiences as we shape a more sustainable, digital future.