Select how often (in days) to receive an alert: GWW is a Victorian government owned water corporation that provides an essential service to some of the fastest-growing communities in Australia, stretching from Melbourne’s CBD to Lancefield in the north and Bacchus Marsh in the west. Click here to learn more
- We embrace flexibility and connection with a balance of on-site and WFH
- Free onsite parking (subject to availability)
- Gender neutral, 16-week parental leave available from commencement
- Eligible full-time employees may access additional Work Life Balance Days, subject to eligibility criteria, helping you prioritise wellbeing and flexibility.
- Free income protection and salary continuance insurance
- Access to corporate health insurance deals with major providers
- Wellbeing, prayer, and sensory rooms in the Footscray and Sunbury office The opportunity We are looking for an experienced and practical OT cyber security qualified to help shape and deliver the next stage of GWW’s OT security uplift. This is a hands-on role for someone who understands that protecting SCADA and industrial control systems requires a different approach from conventional enterprise IT, with safety, reliability and service continuity at the centre of every decision. Reporting to the Head of Cyber Security and working closely with the OT Manager, you will assess the current environment, establish a fit-for-purpose OT cyber security framework and roadmap, and translate it into practical improvements across people, process, architecture and technology. You will work across legacy and modern environments, helping GWW strengthen visibility, segmentation, secure remote access, vulnerability management, monitoring, incident response, recovery and supplier assurance.



This is an opportunity to influence how OT cyber security is established across an essential-services organisation. You will be trusted to provide specialist advice, but equally expected to roll up your sleeves and deliver outcomes with OT, Engineering, Operations, IT, Network, Capital Delivery, Facilities, Risk and external service partners. Responsibilities
- Lead the assessment of GWW’s OT cybersecurity posture and develop a prioritised, achievable roadmap and control framework to guide the implementation, enhancement and ongoing management of security controls across OT environments.
- Design, implement, review and maintain secure OT architectures and controls across SCADA, PLC, RTU and industrial network environments, including IT/OT boundaries, network segmentation, secure remote access and privileged access.
- Identify, assess and manage cybersecurity risks across OT assets, networks and industrial systems through risk assessments, control reviews and targeted remediation strategies that balance security with operational reliability, safety and business continuity.
- Establish and drive practical OT vulnerability management, patching, hardening and legacy-system risk processes, considering asset criticality, operational constraints, vendor support, maintenance requirements and appropriate compensating controls.
- Provide cybersecurity leadership and oversight for OT projects, technology upgrades and system changes, embedding security-by-design into procurement,



supplier requirements, system integration, design reviews, testing, commissioning, operational handover and ongoing change management.
- Develop and strengthen OT security monitoring, threat detection and asset visibility capabilities, while monitoring emerging threats and vulnerabilities that may affect GWW’s operational environments.
- Support the investigation, containment and response to OT cybersecurity incidents, and develop practical isolation, recovery and restoration capabilities that minimise operational disruption and enable essential services to be safely restored.
- Plan and support exercises, testing and assurance activities to confirm that OT cybersecurity controls, incident-response procedures, isolation arrangements, backups and recovery processes are effective in practice.
- Support compliance with applicable critical infrastructure, regulatory and industry cybersecurity obligations through audits, assurance activities, risk documentation, evidence management and continuous improvement initiatives.
- Partner with OT, Engineering, Operations, Project Delivery, Technology, Network, Cyber Security, Risk and external service providers to deliver secure operational outcomes, provide specialist advice and support the ongoing development and delivery of GWW’s OT cybersecurity roadmap. Skills & Experience
- Demonstrated hands‑on experience securing OT, PLC or SCADA environments, with practical knowledge of industrial networking and OT network security.
- Demonstrated ability to assess a developing OT cybersecurity environment and translate risk, regulatory and strategic requirements into a practical roadmap, standards, secure architectures, implemented controls and measurable improv

📌 Senior Specialist, OT Cyber Security (Melbourne)
🏢 Greater Western Water
📍 Melbourne