OT Security Engineer | Hyperscale Data Centres | Melbourne

Salary: $145k + Super

You'll join the Cybersecurity team and work closely with engineering, facility operations, construction and vendors to lift OT security across a multi-site data centre portfolio. It's a hands-on engineering role, suited to someone who can turn security requirements into practical solutions on the ground.

• Supporting the delivery of the OT security uplift program
• Assessing OT networks, ICS/SCADA, BMS and EPMS environments, and recommending fixes
• Helping develop OT security standards aligned to ISA/IEC 62443 and NIST 800-82
• Embedding security controls into new builds, retrofits and live systems
• Designing secure OT network architecture, segmentation and hardening
• Deploying and tuning OT monitoring tools (asset discovery, anomaly detection)
• Supporting OT incident response, patching, firmware updates and vulnerability remediation
• Building relationships with vendors and integrators to make sure systems are delivered securely

• 4 to 7 years experience, including 2 to 3 years in OT security, ICS/SCADA security or critical infrastructure
• Working knowledge of industrial protocols (Modbus, BACnet, DNP3, OPC)
• Experience with BMS, EPMS, PLCs and industrial controllers
• OT network segmentation and hardening experience (Windows, Linux, HMIs, controllers)
• Exposure to OT vulnerability management and incident response
• Experience applying ISA/IEC 62443, NIST 800-82 or similar frameworks
• The ability to explain security in plain English to engineers and operations teams

• GICSP, GRID, ISA/IEC 62443 certification or CCNA
• Experience in data centres, utilities, manufacturing, mining or other critical infrastructure

What's on offer

• $145k + super + STI
• Extra paid recharge days a year on top of annual leave
• Wellness allowance
• Extra paid parental leave (primary carer)
• Flexible start and finish times

To apply or for a confidential chat, contact Kris Rosentreter on 0452 564 644 or kris@decipherbureau.com