We are seeking a hands-on Senior OT Cyber Security Engineer to lead consulting engagements focused on securing operational technology environments in the energy and critical infrastructure sectors.
If you want to spend your time improving the security of actual solar, wind and utility systems rather than writing policies that never leave the page, we should talk.
Key Responsibilities
Review critical infrastructure risk management plans and supporting systems against relevant regulatory and industry frameworks (including SOCI obligations, energy market participant requirements, and IEC *****)
Assess OT and plant environments, including SCADA, historians, plant networks, operating system baselining/hardening (Windows/Linux), and patch/vulnerability/configuration management in OT contexts
Review and design firewall architectures, IT/OT boundary controls, network segmentation (Purdue / IEC *****), and secure remote/vendor access
Evaluate logging, monitoring and incident readiness
Conduct structured gap analyses and develop prioritised,



practical recommendations
Produce clear reports and deliver workshops for both technical and executive audiences
Requirements
7+ years' experience in cyber security, OT security or related engineering
Proven experience in energy, utilities or critical infrastructure environments
Solid hands-on capability with OS hardening, firewall configuration, network security and OT risk assessment/remediation
Ability to engage credibly with engineers, operators and senior stakeholders
Consulting or advisory experience preferred
Mandatory Certifications
Applicants must hold at least one of the following:
GICSP
GRID
ISA/IEC ***** Cybersecurity Specialist or Expert
CISSP (with demonstrable OT/energy experience)
This role suits a senior practitioner who wants to work on real operational systems and deliver tangible security outcomes in complex industrial environments.
#J-*****-Ljbffr

📌 Senior Ot Cyber Security Engineer (Melbourne)
🏢 Trivela Talent
📍 Melbourne