We are seeking two experienced Senior OT Networks Officers to join a critical Operational Technology (OT) network team. These roles are responsible for maintaining, expanding, and securing the organisation’s State-Wide OT network and associated systems, ensuring they remain highly available, secure, and compliant. The positions will involve a mix of BAU support and project delivery, supporting a large portfolio of work within a 24/7 operational environment so there will be an on-call roster.
Contract Summary
- Rate: Based on experience
- Work Model: Hybrid – Tuesdays and Thursdays in the office, remainder WFH as required
Responsibilities
- Monitor and maintain OT network performance, troubleshooting and resolving issues promptly
- Respond to incidents and outages, providing timely communication to stakeholders until resolution
- Implement upgrades, configuration changes, and preventive maintenance across OT systems
- Ensure service availability in accordance with the OT service management model and change processes
- Develop and maintain cybersecurity controls, including proactive monitoring and firewall rule management
- Contribute to compliance reporting against external standards such as ISO27001 and IEC62443
- Document the OT environment including performance requirements, configurations, and work instructions
- Support both BAU activities and project delivery within the OT network space
- Participate in the on-call roster to support critical incidents and after-hours needs
Skills & Experience
- Minimum 5 years’ experience in networking roles within complex environments
- Strong expertise with Cisco Networking technologies, including MPLS, VXLAN, NVPLS, and EVPN
- Hands-on experience with:
Additional skills (preferred, not mandatory):
- AWS and Azure networking
- F5 technologies
- Proven ability to manage BAU and project-related networking activities
- Robust troubleshooting, problem-solving, and communication skills
- Ability to manage diverse network hardware and technologies within a mission-critical environment
- Experience engaging with both internal and external stakeholders, including public-facing services
Seniority level
Mid-Senior level
Employment type
Contract
Job function
Engineering and Information Technology
Industries: Government Administration and Computer and Network Security
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📌 Senior OT Network Engineer
🏢 Libran IT
📍 City of Sydney