Senior OT Network Engineer

2 weeks ago

Sydney, New South Wales, Australia Libran IT Full time $120,000 - $180,000 per year

Role Summary

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
  • Contract Length:
    6 months
  • Work Model:
    Hybrid – Tuesdays and Thursdays in the office, remainder WFH as required
  • Location:
    Yennora Works Centre

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:
  • Cisco SD-WAN
  • Cisco CallManager
  • Palo Alto Network Firewalls

Additional skills (preferred, not mandatory):

  • AWS and Azure
    networking
  • F5 technologies
  • Proven ability to manage BAU and project-related networking activities
  • Strong 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

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